submission_id stringlengths 10 10 | problem_id stringlengths 6 6 | language stringclasses 3
values | code stringlengths 1 522k | compiler_output stringlengths 43 10.2k |
|---|---|---|---|---|
s545789896 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main()
{
int N;
cin>>N;
vector<int> buttons(N);
for (int i=0;i<N;++i){
cin>>buttons.at(i);
}
int on = 0;
for (int i=0;i<=N;++i){
if (on == 1){
cout << i << endl;
return;
}
on = buttons.at(on)
}
cout<<-1<<endl;
} | a.cc: In function 'int main()':
a.cc:18:13: error: return-statement with no value, in function returning 'int' [-fpermissive]
18 | return;
| ^~~~~~
a.cc:20:28: error: expected ';' before '}' token
20 | on = buttons.at(on)
| ^
| ;
21 | }
| ~
|
s176446726 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main() {
int N;
cin >> N;
vector<int> avec(N);
for (int i = 0; i < N; i++) {
cin >> avec.at(i);
}
int now = 1; cnt = 0;
while(1) {
if (now == 2) {
cout << cnt << endl;
break;
}
if (cnt >= n) {
cout << "-1" << endl;
break;
}
now = avec.at(now);
cnt++;
}
return 0;
}
| a.cc: In function 'int main()':
a.cc:12:18: error: 'cnt' was not declared in this scope; did you mean 'int'?
12 | int now = 1; cnt = 0;
| ^~~
| int
a.cc:18:20: error: 'n' was not declared in this scope
18 | if (cnt >= n) {
| ^
|
s394705212 | p03680 | C | #include <stdio.h>
int main(){
int n,count=0,point=1;
scanf("%d",&n);
int a[n],b[n];
for (int i=0;i<n;i++){
scanf("%d",&a[i]);
b[i]=0;
}
while(){
if (point==2){
break;
}
if (b[point-1]==1){
count=-1;
break;
}
point=a[point-1];
b[point-1]=1;
count++;
}
printf("%d\n",count);
return 0;
} | main.c: In function 'main':
main.c:10:12: error: expected expression before ')' token
10 | while(){
| ^
|
s142757612 | p03680 | C | #include <stdio.h>
int main(){
int n,count=0,point=1;
scanf("%d",&n);
int a[n],b[n];
for (int i=0;i<n;i++){
scanf("%d",&a[i]);
b[i]=0;
}
for (int i=0;i<n;i++){
if (point==2){
break;
}
if (point==i+1 && b[i]==1){
count=-1;
break;
}
if (point==i+1 && b[i]==0){
point=a[i];
b[i]=1;
count++
i=0;
}
}
printf("%d\n",count);
return 0;
}
| main.c: In function 'main':
main.c:21:20: error: expected ';' before 'i'
21 | count++
| ^
| ;
22 | i=0;
| ~
|
s100437568 | p03680 | C | #include<stdio.h>
int main(){
int N, b[100000], push, b[100000] = {0}, count = 0;
scanf("%d", &N);
for (i = 0; i < N; i++){
scanf("%d", &a[i]);
}
push = a[0]; b[0] = 1;
while(1){
count++;
if(b[push - 1] == 1){
printf("-1\n");
return 0;
}
if(push == 2){
printf("%d\n", count);
return 0;
}
a[push - 1] = 1;
push = a[push - 1];
}
} | main.c: In function 'main':
main.c:4:27: error: redeclaration of 'b' with no linkage
4 | int N, b[100000], push, b[100000] = {0}, count = 0;
| ^
main.c:4:10: note: previous declaration of 'b' with type 'int[100000]'
4 | int N, b[100000], push, b[100000] = {0}, count = 0;
| ^
main.c:7:8: error: 'i' undeclared (first use in this function)
7 | for (i = 0; i < N; i++){
| ^
main.c:7:8: note: each undeclared identifier is reported only once for each function it appears in
main.c:8:18: error: 'a' undeclared (first use in this function)
8 | scanf("%d", &a[i]);
| ^
|
s453415836 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < n; i++)
#define repi(i, start, end) for(int i = start; i < end; i++)
#define all(x) (x).begin(), (x).end()
#define debug(x) cout << (x) << endl;
#define INF (1e9)
int dx[] = {0, 1, 0, -1};
int dy[] = {-1, 0, 1, 0};
typedef long long ll;
int main(){
cin.tie(0);
ios::sync_with_stdio(false);
int n;
cin >> n;
vector<int> buttons(n);
rep(i, n) cin >> buttons[i];
int put = 0;
bool flag = false;
rep(i, n){
if(put == 1){
cout << i << endl;
flag = true;
break;
}
put = buttons[put] - 1;
}
if(!flag) cout << -1 << endl;
| a.cc: In function 'int main()':
a.cc:38:34: error: expected '}' at end of input
38 | if(!flag) cout << -1 << endl;
| ^
a.cc:16:11: note: to match this '{'
16 | int main(){
| ^
|
s839229682 | p03680 | C++ | #include <iostream>
#include <algorithm>
using namespace std;
int main(){
int N,a[100000],b[100000],ans;
cin >> N;
int b[0]=1;
bool X =false;
for (int i=0; i<N; ++i){
b[i+1]=a[b[i]]
if (b[i]==2){
ans=i;
break;
}
}
if (X) cout << ans << endl;
else cout << -1 << endl;
} | a.cc: In function 'int main()':
a.cc:8:9: error: conflicting declaration 'int b [0]'
8 | int b[0]=1;
| ^
a.cc:6:21: note: previous declaration as 'int b [100000]'
6 | int N,a[100000],b[100000],ans;
| ^
a.cc:11:23: error: expected ';' before 'if'
11 | b[i+1]=a[b[i]]
| ^
| ;
12 | if (b[i]==2){
| ~~
|
s605019158 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main() {
int N;
cin >> N;
vector<int> buttons(N+1);
for (int i = 1; i <= N; i++) {
cin >> buttons.at(i);
}
// search all
vector<bool> pushed(N+1);
int i = 1;
for (int x = 0; x <= N; x++)
pushed.at(x) = false;
int count = 0;
while (true) {
pushed.at(i) = true;
count++;
// next button
i = buttons.at(i);
// reached button2 ?
if ( i == 2 ) {
cout << count << endl;
break;
}
å
// infinite loop ?
if ((pushed.at(i) || (count >= N)) {
cout << -1 << endl;
break;
}
}
} | a.cc: In function 'int main()':
a.cc:34:5: error: '\U000000e5' was not declared in this scope
34 | å
| ^
|
s395176388 | p03680 | C++ | #include <iostream>
using namespace std;
int N;
int a[100010];
int main ()
{
cin >> N;
for (int i = 0; i < N; i++) {
cin >> A[i + 1];
}
int cur = 1;
for (int i = 0; i < N; i++) {
cur = a[cur];
if (cur == 2) {
cout << i + 1 << endl;
return 0;
}
}
cout << -1 << endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:11:16: error: 'A' was not declared in this scope
11 | cin >> A[i + 1];
| ^
|
s535194618 | p03680 | C++ | #include<bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define all(x) (x).begin(),(x).end()
typedef long long ll;
int main(){
int n;
cin>>n;
int a[n+1];
int b[n+1]={};
for(int i=1,i<=n,i++)cin>>a[i];
n=1;
b[n]=1;
int count=0;
while(n!=2){n=a[n];if(b[n]){break;cout<<-1<<endl;return 0;}b[n]=1;count++;}
cout<<count<<endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:11:22: error: expected ';' before '<=' token
11 | for(int i=1,i<=n,i++)cin>>a[i];
| ^~
| ;
a.cc:11:22: error: expected primary-expression before '<=' token
11 | for(int i=1,i<=n,i++)cin>>a[i];
| ^~
a.cc:11:29: error: expected ';' before ')' token
11 | for(int i=1,i<=n,i++)cin>>a[i];
| ^
| ;
|
s623058362 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main() {
int n,;
cin >> n;
vector<int> a(n);
for (int i = 0; i < n; i ++) {
cin >> a.at(i);
}
int now = 0, cnt = 0;
while (true) {
if (now == 1) {
cout << cnt << endl;
return 0;
}
if (cnt >= n) {
cout << -1 << endl;
return 0;
}
cnt ++;
now = a.at(now);
}
}
| a.cc: In function 'int main()':
a.cc:5:9: error: expected unqualified-id before ';' token
5 | int n,;
| ^
|
s662604505 | p03680 | C++ | #include<iostream>
using namespace std;
int main(){
int n;cin>>n;
int A[n];for(int i=0;i<n;i++)cin>>A[i];
int ans=0,now=0;
for(;;){
if(now==1){
cout<<c<<endl;
break
}
if(c>=n){
cout<<-1<<endl;
break;
}
c++;
now=A[now];
}
}
| a.cc: In function 'int main()':
a.cc:10:13: error: 'c' was not declared in this scope
10 | cout<<c<<endl;
| ^
a.cc:11:12: error: expected ';' before '}' token
11 | break
| ^
| ;
12 | }
| ~
a.cc:13:8: error: 'c' was not declared in this scope
13 | if(c>=n){
| ^
a.cc:17:5: error: 'c' was not declared in this scope
17 | c++;
| ^
|
s128045217 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main() {
int N;
cin >> N;
vector<int> a(N+1);
for(int i=1;i<N+1;i++){
cin >> a[i];
}
int b=1;
for(int i=1;i<N+1;i++){
b=a[b];
if(b==2){
cout << i << endl;
return 0;
break;
}
}
cout << -1 << endl;
| a.cc: In function 'int main()':
a.cc:24:22: error: expected '}' at end of input
24 | cout << -1 << endl;
| ^
a.cc:4:12: note: to match this '{'
4 | int main() {
| ^
|
s544617922 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main() {
int N;
cin >> N;
vector<int> a(N+1);
for(int i=1;i<N+1;i++){
cin >> a[i];
}
int b=1;
for(int i=1;i<N+1;i++){
b=a[b];
if(b==2){
cout << i << endl;
return 0;
}
}
cout << -1 << endl;
| a.cc: In function 'int main()':
a.cc:23:22: error: expected '}' at end of input
23 | cout << -1 << endl;
| ^
a.cc:4:12: note: to match this '{'
4 | int main() {
| ^
|
s001498352 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main() {
int N;
cin >> N;
vector<int> a(N);
for(i=0;i<N;i++){
cin >> a[i];
}
int b=0;
for(i=0;i<N;i++){
b=a[b]-1;
if(b==1){
cout << i+1 << endl;
break;
return 0;
}
}
cout << -1 << endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:8:7: error: 'i' was not declared in this scope
8 | for(i=0;i<N;i++){
| ^
a.cc:13:7: error: 'i' was not declared in this scope
13 | for(i=0;i<N;i++){
| ^
|
s128843914 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main() {
int N;
cin >> N;
vectro<int> a(N);
for(i=0;i<N;i++){
cin >> a[i];
}
int b=0;
for(i=0;i<N;i++){
b=a[b]-1;
if(b==1){
cout << i+1 << endl;
break;
return 0;
}
}
cout << -1 << endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:7:3: error: 'vectro' was not declared in this scope
7 | vectro<int> a(N);
| ^~~~~~
a.cc:7:10: error: expected primary-expression before 'int'
7 | vectro<int> a(N);
| ^~~
a.cc:8:7: error: 'i' was not declared in this scope
8 | for(i=0;i<N;i++){
| ^
a.cc:9:12: error: 'a' was not declared in this scope
9 | cin >> a[i];
| ^
a.cc:13:7: error: 'i' was not declared in this scope
13 | for(i=0;i<N;i++){
| ^
a.cc:14:7: error: 'a' was not declared in this scope
14 | b=a[b]-1;
| ^
|
s557532775 | p03680 | Java | #include <bits/stdc++.h>
using namespace std;
int main(){
int n;
cin >> n;
vector<int> a(n);
for(int i = 0; i < n; i++){
cin >> a[i];
a[i]--;
}
int k = 0;
int count = 0;
do{
k = a[k];
count++;
}while(k != 0 && k != 1);
if(k == 1) cout << count;
else cout << -1;
}
| Main.java:1: error: illegal character: '#'
#include <bits/stdc++.h>
^
Main.java:1: error: class, interface, enum, or record expected
#include <bits/stdc++.h>
^
Main.java:5: error: not a statement
cin >> n;
^
Main.java:6: error: not a statement
vector<int> a(n);
^
Main.java:8: error: not a statement
cin >> a[i];
^
Main.java:17: error: not a statement
if(k == 1) cout << count;
^
Main.java:18: error: not a statement
else cout << -1;
^
Main.java:3: error: unnamed classes are a preview feature and are disabled by default.
int main(){
^
(use --enable-preview to enable unnamed classes)
Main.java:6: error: ';' expected
vector<int> a(n);
^
Main.java:6: error: ';' expected
vector<int> a(n);
^
10 errors
|
s824655961 | p03680 | C++ | #include<stdio.h>
#include<vector>
#include<algorithm>
using namespace std;
int main ( )
{
int n ;
scanf ("%d" , &n ) ;
vector<int>v ;
for ( int i = 0 ; i < n ; i++)
{
int z ;
scanf ("%d" , &z ) ;
z−−;
v.push back ( z ) ;
}
int now = 0 , c = 0 ;
for ( ; ; )
{
if ( now == 1 )
{
printf ("%d\n" , c ) ;
break ;
}
if ( c >= n )
{
printf ("−1\n" ) ;
break ;
}
c++;
now = v [ now ] ;
}
} | a.cc:14:1: error: extended character − is not valid in an identifier
14 | z−−;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
a.cc: In function 'int main()':
a.cc:14:1: error: 'z\U00002212\U00002212' was not declared in this scope
14 | z−−;
| ^~~
a.cc:15:3: error: 'class std::vector<int>' has no member named 'push'
15 | v.push back ( z ) ;
| ^~~~
|
s119093565 | p03680 | C++ | #include<stdio.h>
#include<vector>
#include<algorithm>
using namespace std;
int main ( )
{
int n ;
scanf (”%d ” , &n ) ;
vector<int>v ;
for ( int i = 0 ; i < n ; i++)
{
int z ;
scanf (”%d ” , &z ) ;
z−−;
v.push back ( z ) ;
}
int now = 0 , c = 0 ;
for ( ; ; )
{
if ( now == 1 )
{
printf (”%d\n ” , c ) ;
break ;
}
if ( c >= n )
{
printf (”−1\n ” ) ;
break ;
}
c++;
now = v [ now ] ;
}
}
| a.cc:8:8: error: extended character ” is not valid in an identifier
8 | scanf (”%d ” , &n ) ;
| ^
a.cc:8:12: error: extended character ” is not valid in an identifier
8 | scanf (”%d ” , &n ) ;
| ^
a.cc:13:8: error: extended character ” is not valid in an identifier
13 | scanf (”%d ” , &z ) ;
| ^
a.cc:13:12: error: extended character ” is not valid in an identifier
13 | scanf (”%d ” , &z ) ;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
14 | z−−;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
a.cc:22:9: error: extended character ” is not valid in an identifier
22 | printf (”%d\n ” , c ) ;
| ^
a.cc:22:12: error: stray '\' in program
22 | printf (”%d\n ” , c ) ;
| ^
a.cc:22:15: error: extended character ” is not valid in an identifier
22 | printf (”%d\n ” , c ) ;
| ^
a.cc:27:9: error: extended character ” is not valid in an identifier
27 | printf (”−1\n ” ) ;
| ^
a.cc:27:9: error: extended character − is not valid in an identifier
a.cc:27:12: error: stray '\' in program
27 | printf (”−1\n ” ) ;
| ^
a.cc:27:15: error: extended character ” is not valid in an identifier
27 | printf (”−1\n ” ) ;
| ^
a.cc: In function 'int main()':
a.cc:8:8: error: '\U0000201d' was not declared in this scope
8 | scanf (”%d ” , &n ) ;
| ^
a.cc:8:10: error: 'd' was not declared in this scope
8 | scanf (”%d ” , &n ) ;
| ^
a.cc:14:1: error: 'z\U00002212\U00002212' was not declared in this scope
14 | z−−;
| ^~~
a.cc:15:3: error: 'class std::vector<int>' has no member named 'push'
15 | v.push back ( z ) ;
| ^~~~
a.cc:27:9: error: '\U0000201d\U000022121' was not declared in this scope
27 | printf (”−1\n ” ) ;
| ^~~
|
s391084244 | p03680 | C++ | #i n cl u d e <s t d i o . h>
#i n cl u d e <v e c t o r>
#i n cl u d e <al g o ri thm>
u si n g namespace s t d ;
i n t main ( )
{
i n t n ;
s c a n f (”%d ” , &n ) ;
v e c t o r<i n t>v ;
f o r ( i n t i = 0 ; i < n ; i++)
{
i n t z ;
s c a n f (”%d ” , &z ) ;
z−−;
v . push back ( z ) ;
}
i n t now = 0 , c = 0 ;
f o r ( ; ; )
{
i f ( now == 1 )
{
p r i n t f (”%d\n ” , c ) ;
break ;
}
i f ( c >= n )
{
p r i n t f (”−1\n ” ) ;
break ;
}
c++;
now = v [ now ] ;
}
}
| a.cc:1:2: error: invalid preprocessing directive #i; did you mean #if?
1 | #i n cl u d e <s t d i o . h>
| ^
| if
a.cc:2:2: error: invalid preprocessing directive #i; did you mean #if?
2 | #i n cl u d e <v e c t o r>
| ^
| if
a.cc:3:2: error: invalid preprocessing directive #i; did you mean #if?
3 | #i n cl u d e <al g o ri thm>
| ^
| if
a.cc:8:12: error: extended character ” is not valid in an identifier
8 | s c a n f (”%d ” , &n ) ;
| ^
a.cc:8:16: error: extended character ” is not valid in an identifier
8 | s c a n f (”%d ” , &n ) ;
| ^
a.cc:13:12: error: extended character ” is not valid in an identifier
13 | s c a n f (”%d ” , &z ) ;
| ^
a.cc:13:16: error: extended character ” is not valid in an identifier
13 | s c a n f (”%d ” , &z ) ;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
14 | z−−;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
a.cc:22:14: error: extended character ” is not valid in an identifier
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:22:17: error: stray '\' in program
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:22:20: error: extended character ” is not valid in an identifier
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:27:14: error: extended character ” is not valid in an identifier
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:27:14: error: extended character − is not valid in an identifier
a.cc:27:17: error: stray '\' in program
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:27:20: error: extended character ” is not valid in an identifier
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:4:1: error: 'u' does not name a type
4 | u si n g namespace s t d ;
| ^
a.cc:5:1: error: 'i' does not name a type
5 | i n t main ( )
| ^
|
s982452043 | p03680 | C++ | #i n cl u d e <s t d i o . h>
#i n cl u d e <v e c t o r>
#i n cl u d e <al g o ri thm>
u si n g namespace s t d ;
i n t main ( )
{
i n t n ;
s c a n f (”%d ” , &n ) ;
v e c t o r<i n t>v ;
f o r ( i n t i = 0 ; i < n ; i++)
{
i n t z ;
s c a n f (”%d ” , &z ) ;
z−−;
v . push back ( z ) ;
}
i n t now = 0 , c = 0 ;
f o r ( ; ; )
{
i f ( now == 1 )
{
p r i n t f (”%d\n ” , c ) ;
break ;
}
i f ( c >= n )
{
p r i n t f (”−1\n ” ) ;
break ;
}
c++;
now = v [ now ] ;
}
} | a.cc:1:2: error: invalid preprocessing directive #i; did you mean #if?
1 | #i n cl u d e <s t d i o . h>
| ^
| if
a.cc:2:2: error: invalid preprocessing directive #i; did you mean #if?
2 | #i n cl u d e <v e c t o r>
| ^
| if
a.cc:3:2: error: invalid preprocessing directive #i; did you mean #if?
3 | #i n cl u d e <al g o ri thm>
| ^
| if
a.cc:8:12: error: extended character ” is not valid in an identifier
8 | s c a n f (”%d ” , &n ) ;
| ^
a.cc:8:16: error: extended character ” is not valid in an identifier
8 | s c a n f (”%d ” , &n ) ;
| ^
a.cc:13:12: error: extended character ” is not valid in an identifier
13 | s c a n f (”%d ” , &z ) ;
| ^
a.cc:13:16: error: extended character ” is not valid in an identifier
13 | s c a n f (”%d ” , &z ) ;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
14 | z−−;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
a.cc:22:14: error: extended character ” is not valid in an identifier
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:22:17: error: stray '\' in program
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:22:20: error: extended character ” is not valid in an identifier
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:27:14: error: extended character ” is not valid in an identifier
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:27:14: error: extended character − is not valid in an identifier
a.cc:27:17: error: stray '\' in program
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:27:20: error: extended character ” is not valid in an identifier
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:4:1: error: 'u' does not name a type
4 | u si n g namespace s t d ;
| ^
a.cc:5:1: error: 'i' does not name a type
5 | i n t main ( )
| ^
|
s040957603 | p03680 | C | #include<stdio.h>
#include<string.h>
int a[100001][2];
int main(void) {
int n;
int i;
scanf("%d", &n);
for (i = 0; i < n; i++) {
scanf("%d", &a[i][0]);
a[i][1] = 1;
}
//ループのiに数列の値を代入してみる//
j = 0;
for (i = 0; i < n; i = a[i][0] - 1) {
if (a[i][0] == 1) {
printf("-1\n");
return 0;
}
if (a[i][0] == 2) {
printf("%d", j+1);
return 0;
}
if (a[i][1] == 0) {
printf("-1\n");
return 0;
}
j++;
a[i][1] = 0;
}
printf("-1\n");
return 0;
}
| main.c: In function 'main':
main.c:20:9: error: 'j' undeclared (first use in this function)
20 | j = 0;
| ^
main.c:20:9: note: each undeclared identifier is reported only once for each function it appears in
|
s789911561 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
const int maxx = 1e5 + 7;
int n;
int a[maxx];
map <int, int> mp;
bool flg;
bool vis[maxx];
int main() {
cin >> n;
for(int i = 1; i <= n; i++) cin >> a[i];
for(int i = 1; i <= n; i++) mp[a[i]] = i;
int p = 1;
while(p != 2) {
if(flg) break;
if(vis[p]) flg = 1;
vis[p] = 1;
p = mp[p];
cnt++;
}
if(flg) puts("-1");
else cout << cnt << endl;
} | a.cc: In function 'int main()':
a.cc:20:17: error: 'cnt' was not declared in this scope; did you mean 'int'?
20 | cnt++;
| ^~~
| int
a.cc:23:22: error: 'cnt' was not declared in this scope; did you mean 'int'?
23 | else cout << cnt << endl;
| ^~~
| int
|
s811040981 | p03680 | C++ | #include<bits/stdc++.h>
using namespace std;
int main(){
int n;cin >> n;
vector<int> a(n+1);
for(int i=1;i<=n;i++){
cin >> a.at(i);
}
vector<bool> b(n+1,false);
int ans=0;
int i=1
while(1){
ans++;
b.at(i)=true;
i = a.at(i);
if(i==2){
cout << ans << endl;
return 0;
}
if(b.at(i)) break;
}
cout << -1 << endl;
} | a.cc: In function 'int main()':
a.cc:13:5: error: expected ',' or ';' before 'while'
13 | while(1){
| ^~~~~
|
s388359486 | p03680 | C++ | #include <bits/stdc++.h>
#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define SORT(v, n) sort(v, v+n);
#define VSORT(v) sort(v.begin(), v.end());
#define ll long long
#define pb(a) push_back(a)
#define INF 1000000000
using namespace std;
typedef pair<int, int> P;
typedef pair<ll, ll> LP;
typedef pair<int, P> PP;
typedef pair<ll, LP> LPP;
int dy[]={0, 0, 1, -1, 0};
int dx[]={1, -1, 0, 0, 0};
int main(){
cin.tie(0);
ios::sync_with_stdio(false);
int N;
cin >> N;
vector<int> a(N),flag(N);
REP(i,N) cin >> a[i];
int button=1,ans=0;
while(1){
button = a[button-1];
ans++;
flag[button-1]++;
if(button==c) break;
if(flag[button-1]>1){
ans=-1;
break;
}
}
cout << ans << endl;
}
| a.cc: In function 'int main()':
a.cc:32:16: error: 'c' was not declared in this scope
32 | if(button==c) break;
| ^
|
s122465255 | p03680 | C++ | #include <iostream>
#include <vector>
int main() {
std::cin >> N;
std::vector<int> a(N);
for (int i = 0; i < N; ++i) {
std::cin >> a[i];
}
int now = a[0];
int cnt = 0;
while(cnt < N) {
int tmp = a[now];
now = a[tmp];
++cnt;
if ( now == 2 ) break;
}
if ( cnt < N ) std::cout << cnt << std::endl;
else std::cout << -1 << std::endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:5:15: error: 'N' was not declared in this scope
5 | std::cin >> N;
| ^
|
s380709310 | p03680 | C++ | #include <string>
#include <algorithm>
#include <utility>
#define INF 1000000000
#define MOD 1000000007
using namespace std;
int main()
{
int n;
int ans = 0;
int a[100005];
int v[100005] = {};
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
int now = 1;
while (now != 2 && v[now] == 0) {
v[now] = 1;
now = a[now];
ans++;
}
if (now != 2) {
cout << -1 << endl;
} else {
cout << ans << endl;
}
return 0;
}
| a.cc: In function 'int main()':
a.cc:16:5: error: 'cin' was not declared in this scope
16 | cin >> n;
| ^~~
a.cc:4:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
3 | #include <utility>
+++ |+#include <iostream>
4 | #define INF 1000000000
a.cc:30:9: error: 'cout' was not declared in this scope
30 | cout << -1 << endl;
| ^~~~
a.cc:30:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:30:23: error: 'endl' was not declared in this scope
30 | cout << -1 << endl;
| ^~~~
a.cc:4:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
3 | #include <utility>
+++ |+#include <ostream>
4 | #define INF 1000000000
a.cc:32:9: error: 'cout' was not declared in this scope
32 | cout << ans << endl;
| ^~~~
a.cc:32:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:32:24: error: 'endl' was not declared in this scope
32 | cout << ans << endl;
| ^~~~
a.cc:32:24: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
|
s270777404 | p03680 | C++ | #include<iostream>
#include<algorithm>
#include<string>
#include<functional>
#include<utility>
#include<stack>
#include<queue>
#include<cmath>
#include<list>
#include<cstdint>
#include<vector>
#include<map>
#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))
#define rep(i,rept) for(ll i = 0; i<rept;i++)
typedef long long ll;
using namespace std;
ll nCr(ll n, ll r) {
if (r > n) { return 0; }
if (r * 2 > n) r = n - r;
ll dividend = 1;
ll divisor = 1;
for (ll i = 1; i <= r; ++i) {
dividend *= (n - i + 1);
divisor *= i;
}
return dividend / divisor;
}
ll sumdigit(ll n) {
ll dig = 0, sum = 0;
while (n) {
dig = n % 10;
sum = sum + dig;
n = n / 10;
}
return sum;
}
int main() {
int n;
cin >> n;
for (int i = 0; i <= n; i++) {
cin >> a[i];
a[i]--;
}
int x = 0;
for (int i = 0; i<100010; i++) {
if (x == 1) {
cout << i << endl;
return 0;
}
x = a[x];
}
cout << -1 << endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:47:24: error: 'a' was not declared in this scope
47 | cin >> a[i];
| ^
a.cc:56:21: error: 'a' was not declared in this scope
56 | x = a[x];
| ^
|
s542780839 | p03680 | C++ | #include<bits/stdc++.h>
using namespace std;
int a[100010];
bool f[100010];
int ans;
void dfs(int i,int c){
if(i==2)ans=c;
if(f[a[i]]){
return;
}else{
dfs(a[i]);
}
}
int main(){
int n;cin>>n;
ans=1000000;
for(int i=1;i<=n;i++)cin>>a[i];
dfs(1);
if(ans<1000000){
cout<<ans<<endl;
}else{
cout<<-1<<endl;
}
} | a.cc: In function 'void dfs(int, int)':
a.cc:11:8: error: too few arguments to function 'void dfs(int, int)'
11 | dfs(a[i]);
| ~~~^~~~~~
a.cc:6:6: note: declared here
6 | void dfs(int i,int c){
| ^~~
a.cc: In function 'int main()':
a.cc:18:8: error: too few arguments to function 'void dfs(int, int)'
18 | dfs(1);
| ~~~^~~
a.cc:6:6: note: declared here
6 | void dfs(int i,int c){
| ^~~
|
s273461601 | p03680 | C++ | #include<stdio.h>
#include<vector>
#include<algorithm>
using namespace std ;
int main (){
int n ;
scanf ("%d" , &n ) ;
vector<int>v ;
for(int i=0;i<n;i++){
intz;
scanf("%d",&z);
z--;
v.push_back(z);
}
int now=0,c=0;
for(;;){
if(now==1){
printf("%d\n",c);
break;
}if(c>=n){
printf("-1\n");
break;
}
c++;
now=v[now];
}}
| a.cc: In function 'int main()':
a.cc:10:5: error: 'intz' was not declared in this scope; did you mean 'int'?
10 | intz;
| ^~~~
| int
a.cc:11:17: error: 'z' was not declared in this scope
11 | scanf("%d",&z);
| ^
|
s678293401 | p03680 | C++ | #include<stdio . h>
#include<vector>
#include<algorithm>
using namespace std ;
int main (){
int n ;
scanf ("%d" , &n ) ;
vector<int>v ;
for(int i=0;i<n;i++){
intz;
scanf("%d",&z);
z--;
v.push_back(z);
}
int now=0,c=0;
for(;;){
if(now==1){
printf("%d\n",c);
break;
}if(c>=n){
printf("-1\n");
break;
}
c++;
now=v[now];
}} | a.cc:1:9: fatal error: stdio . h: No such file or directory
1 | #include<stdio . h>
| ^~~~~~~~~~~
compilation terminated.
|
s521820833 | p03680 | C++ | n = gets.chomp.to_i
a = readlines.map{|a| a.to_i}
if a.index(2).nil?
puts "-1"
exit
end
a.unshift(0)
count = Array.new(n+1){0}
idx = a[1]
count[1] += 1
while idx != 2 && count.inject(&:+) != n
prv_idx = idx
idx = a[idx]
if prv_idx == a[idx]
puts "-1"
exit
end
count[prv_idx] += 1
end
if count.inject(&:+) == n
puts "-1"
exit
end
puts count.inject(&:+) | a.cc:1:1: error: 'n' does not name a type
1 | n = gets.chomp.to_i
| ^
a.cc:4:1: error: expected unqualified-id before 'if'
4 | if a.index(2).nil?
| ^~
a.cc:12:1: error: 'idx' does not name a type
12 | idx = a[1]
| ^~~
|
s340005618 | p03680 | C++ | n = gets(chomp:true).to_i
a = readlines.map{|a| a.to_i}
if a.index(2).nil?
puts "-1"
exit
end
a.unshift(0)
count = Array.new(n+1){0}
idx = a[1]
count[1] += 1
while idx != 2 && count.inject(&:+) != n
prv_idx = idx
idx = a[idx]
if prv_idx == a[idx]
puts "-1"
exit
end
count[prv_idx] += 1
end
if count.inject(&:+) == n
puts "-1"
exit
end
puts count.inject(&:+) | a.cc:1:1: error: 'n' does not name a type
1 | n = gets(chomp:true).to_i
| ^
a.cc:4:1: error: expected unqualified-id before 'if'
4 | if a.index(2).nil?
| ^~
a.cc:12:1: error: 'idx' does not name a type
12 | idx = a[1]
| ^~~
|
s845936988 | p03680 | C++ | #include <algorithm>
#include <cassert>
// #include <chrono>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <iostream>
#include <map>
#include <memory>
#include <queue>
// #include <random>
#include <set>
#include <stack>
#include <string>
#include <utility>
#include <vector>
/*
unsigned seed1 = std::chrono::system_clock::now().time_since_epoch().count();
mt19937 g1.seed(seed1);
*/
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef pair<pii, pii> ppiipii;
typedef pair<int, ppiipii> pippiipii;
typedef pair<int, pii> pipii;
typedef pair<pii, int> ppiii;
typedef pair<int, ppiii> pippiii;
typedef pair<int, ll> pill;
typedef pair<int, double> pid;
typedef pair<string, string> pss;
// note to self, the below two triggers someone
typedef pair<ll, ll> pll;
typedef pair<ll, int> plli;
typedef long double ld;
int to[100005];
int main() {
int n;
scanf("%d", &n);
for(int i = 1; i <= n; i++) {
scanf("%d", &l[i]);
}
int curr = 1;
int ret = 0;
while(curr != 2 && ret < 1000000) {
curr = to[curr];
ret++;
}
if(curr != 2) ret = -1;
printf("%d\n", ret);
}
| a.cc: In function 'int main()':
a.cc:49:18: error: 'l' was not declared in this scope
49 | scanf("%d", &l[i]);
| ^
|
s111688096 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main(){
int i,array[100001],n[100001]={},c=0,a
cin>>a;
for(i=0;i<a;i++){
cin>>array[i];
}
for(i=0;;){
if(i==2){
cout<<c<<endl;
return 0;
}
if(n[i]==-1){
cout<<n[i]<<endl;
return 0;
}
i=array[i];
n[i]--;
c++;
}
}
| a.cc: In function 'int main()':
a.cc:6:3: error: expected initializer before 'cin'
6 | cin>>a;
| ^~~
a.cc:7:13: error: 'a' was not declared in this scope
7 | for(i=0;i<a;i++){
| ^
|
s122550926 | p03680 | C++ | #include <iostream>
#include <vector>
using namespace std;
int main(){
int N;
cin >> N;
vector<int> a(200000);
for(int i=1;i<=N;i++){
cin >> a.at(i);
}
for( | a.cc: In function 'int main()':
a.cc:12:7: error: expected primary-expression at end of input
12 | for(
| ^
a.cc:12:7: error: expected primary-expression at end of input
a.cc:12:7: error: expected ';' at end of input
12 | for(
| ^
| ;
a.cc:12:7: error: expected primary-expression at end of input
a.cc:12:7: error: expected ')' at end of input
12 | for(
| ~^
| )
a.cc:12:7: error: expected statement at end of input
a.cc:12:7: error: expected '}' at end of input
a.cc:5:11: note: to match this '{'
5 | int main(){
| ^
|
s033055787 | p03680 | C++ | #include "bits/stdc++.h"
using namespace std;
#define MOD 1000000007
#define FOR(i,a,b) for(long long i=(a);i<(b);i++)
#define REP(i,n) FOR(i,0,n)
#define ITR(itr,mp) for(auto itr = (mp).begin(); itr != (mp).end(); ++itr)
#define dump(x) cout << #x << " = " << (x) << endl;
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;
typedef long long ll;
typedef pair<ll,ll> P;
typedef vector<vector<P>> Graph;
int main(){
int n;
cin >> n;
int lamp[n];
REP(i,n){
cin >> lamp[i];
}
int ans = 0,l = 0;
while(ans <= n){
l = lamp[i] -1;
ans++;
if(l == 1) {
cout << ans << endl;
return 0;
}
}
cout << -1 << endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:26:14: error: 'i' was not declared in this scope
26 | l = lamp[i] -1;
| ^
|
s379241933 | p03680 | C++ | #include <iostream>
using namespace std;
int main() {
int n,a=1,b=vec.at(1),x=0;
cin>>n;
vector<int>vec(n);
for(int i=0;i<n;i++){
cin>>vec.at(i);
}
for(int i=0;i<n;i++){
if(b==2){
break;
}
a=b;
b=vec.at(a);
x++
}
if(x==n){
cout<<-1<<endl;
}
else{
cout<<x+1<<endl;
}
return 0;
} | a.cc: In function 'int main()':
a.cc:5:21: error: 'vec' was not declared in this scope
5 | int n,a=1,b=vec.at(1),x=0;
| ^~~
a.cc:7:9: error: 'vector' was not declared in this scope
7 | vector<int>vec(n);
| ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
1 | #include <iostream>
+++ |+#include <vector>
2 | using namespace std;
a.cc:7:16: error: expected primary-expression before 'int'
7 | vector<int>vec(n);
| ^~~
a.cc:19:13: error: 'x' was not declared in this scope
19 | x++
| ^
a.cc:22:12: error: 'x' was not declared in this scope
22 | if(x==n){
| ^
|
s066261905 | p03680 | C++ | #include <iostream>
//#include <vector>
using namespace std;
int search(int* arr, int len){
int flag = 0;
if(len > 0){
for(int i = 0; i < len; i++){
if(arr[len] == arr[i]){
flag = 1;
break;
}
}
}
return flag;
}
int main(){
int N;
int a[110000];
cin >> N;
for(int i = 0; i < N; i++) cin >> a[i];
//for(int i = 0; i < N; i++) cout << a[i];
//cout << endl;
int passed[110000] = {};
int now = 1;
int cnt = 0;
passed[0] = now;
while(num != 2){
//if(cnt > 10) break;
if(num == 2) break;
cnt ++;
now = a[now-1];
passed[cnt] = now;
//cout << "cnt: " << cnt << " now: " << now << endl;
if(search(passed, cnt)){
cnt = -1;
break;
}
}
cout << cnt << endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:36:9: error: 'num' was not declared in this scope; did you mean 'enum'?
36 | while(num != 2){
| ^~~
| enum
|
s819020839 | p03680 | C++ | #include<bits/stdc++.h>
#define INF 1e9
#define llINF 1e18
#define MOD 1e9+7
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define ll long long
using namespace std;
int main(){
int n;cin>>n;
bool used[n+10]={};
vector<int>bo(n+10)
for(int i=1;i<=n;i++){
cin>>bo[i];
}
int cnt=0;
int now=1;
bool flag=true;
while(1){
if(used[now]){flag=false;break;}
used[now]=true;
now=bo[now];
cnt++;
if(now==2)break;
}
if(flag)cout<<cnt<<endl;
else cout<<-1<<endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:16:3: error: expected ',' or ';' before 'for'
16 | for(int i=1;i<=n;i++){
| ^~~
a.cc:16:15: error: 'i' was not declared in this scope
16 | for(int i=1;i<=n;i++){
| ^
|
s010283741 | p03680 | C++ | #include<cstdio>
int a[100001],ans,n;
int dispo=1;
bool c[100001];
int main(){
cin>>n;
for(int i=1;i<=n;i++){
cin>>a[i];
}
for(int i=1;i<=n;i++){
if(dispo==2){
printf("%d",ans);
return 0;
}else if(c[dispo]&1){
printf("-1");
return 0;
}
++c[dispo];
dispo=a[dispo];
++ans;
}
}
| a.cc: In function 'int main()':
a.cc:8:5: error: 'cin' was not declared in this scope
8 | cin>>n;
| ^~~
a.cc:20:18: error: use of an operand of type 'bool' in 'operator++' is forbidden in C++17
20 | ++c[dispo];
| ~~~~~~~^
|
s254919909 | p03680 | C++ | #include <algorithm>
#include <cmath>
#include <iostream>
#include <string>
using namespace std;
int main(void) {
int pus, n, count = 0, times = 0;
cin >> n;
int buton[n];
for (int i = 0; i < n; i++) {
cin >> buton[i];
}
pus = buton[0];
count = times = 1;
if (pus == 2) {
cout << count << endl;
return;
}
while (true) {
if (buton[pus - 1] == 2) {
cout << count + 1 << endl;
return 0;
}
pus = buton[pus - 1];
count++;
times++;
if (times > n * 2) {
cout << -1 << endl;
return 0;
}
}
return 0;
}
| a.cc: In function 'int main()':
a.cc:18:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
18 | return;
| ^~~~~~
|
s022112828 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin >>n;
int a[1000001];
for(int i=1;i<=n;i++) {
cin >> a[i];
}
int now=1;
int sum=0;
while(ans==0) {
sum +=1;
if(a[now]==2) {
cout << sum <<endl;break;
}
else if(sum > n) {
cout << -1 <<endl; break;
}
else if(a[now]==now) {
ans=-1;break;
}
else {
now=a[now]; continue;
}
}
} | a.cc: In function 'int main()':
a.cc:13:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
13 | while(ans==0) {
| ^~~
| abs
|
s319305561 | p03680 | C++ | #include <iostream>
#include <vector>
using namespace std;
int main() {
int n, c = 0;
vector <int> v[n];
cin >> n;
for (int i = 0; i < n; i++) {
cin >> v[i];
}
int a = v[0];
for (int j = 0; j < n; j++) {
if (v[a] == 2) {
cout << c << endl;
break;
} else {
a = v[a];
c++;
}
}
cout << -1 << endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:10:21: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'std::vector<int>')
10 | cin >> v[i];
| ~~~ ^~ ~~~~
| | |
| | std::vector<int>
| std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/iostream:42,
from a.cc:1:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
170 | operator>>(bool& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:170:24: note: no known conversion for argument 1 from 'std::vector<int>' to 'bool&'
170 | operator>>(bool& __n)
| ~~~~~~^~~
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]'
174 | operator>>(short& __n);
| ^~~~~~~~
/usr/include/c++/14/istream:174:25: note: no known conversion for argument 1 from 'std::vector<int>' to 'short int&'
174 | operator>>(short& __n);
| ~~~~~~~^~~
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
177 | operator>>(unsigned short& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:177:34: note: no known conversion for argument 1 from 'std::vector<int>' to 'short unsigned int&'
177 | operator>>(unsigned short& __n)
| ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]'
181 | operator>>(int& __n);
| ^~~~~~~~
/usr/include/c++/14/istream:181:23: note: no known conversion for argument 1 from 'std::vector<int>' to 'int&'
181 | operator>>(int& __n);
| ~~~~~^~~
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
184 | operator>>(unsigned int& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:184:32: note: no known conversion for argument 1 from 'std::vector<int>' to 'unsigned int&'
184 | operator>>(unsigned int& __n)
| ~~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
188 | operator>>(long& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:188:24: note: no known conversion for argument 1 from 'std::vector<int>' to 'long int&'
188 | operator>>(long& __n)
| ~~~~~~^~~
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
192 | operator>>(unsigned long& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:192:33: note: no known conversion for argument 1 from 'std::vector<int>' to 'long unsigned int&'
192 | operator>>(unsigned long& __n)
| ~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
199 | operator>>(long long& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:199:29: note: no known conversion for argument 1 from 'std::vector<int>' to 'long long int&'
199 | operator>>(long long& __n)
| ~~~~~~~~~~~^~~
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
203 | operator>>(unsigned long long& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:203:38: note: no known conversion for argument 1 from 'std::vector<int>' to 'long long unsigned int&'
203 | operator>>(unsigned long long& __n)
| ~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:219:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
219 | operator>>(float& __f)
| ^~~~~~~~
/usr/include/c++/14/istream:219:25: note: no known conversion for argument 1 from 'std::vector<int>' to 'float&'
219 | operator>>(float& __f)
| ~~~~~~~^~~
/usr/include/c++/14/istream:223:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
223 | operator>>(double& __f)
| ^~~~~~~~
/usr/include/c++/14/istream:223:26: note: no known conversion for argument 1 from 'std::vector<int>' to 'double&'
223 | operator>>(double& __f)
| ~~~~~~~~^~~
/usr/include/c++/14/istream:227:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
227 | operator>>(long double& __f)
| ^~~~~~~~
/usr/include/c++/14/istream:227:31: note: no known conversion for argument 1 from 'std::vector<int>' to 'long double&'
227 | operator>>(long double& __f)
| ~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
328 | operator>>(void*& __p)
| ^~~~~~~~
/usr/include/c++/14/istream:328:25: note: no known conversion for argument 1 from 'std::vector<int>' to 'void*&'
328 | operator>>(void*& __p)
| ~~~~~~~^~~
/usr/include/c++/14/istream:122:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
122 | operator>>(__istream_type& (*__pf)(__istream_type&))
| ^~~~~~~~
/usr/include/c++/14/istream:122:36: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'}
122 | operator>>(__istream_type& (*__pf)(__istream_type&))
| ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/istream:126:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]'
126 | operator>>(__ios_type& (*__pf)(__ios_type&))
| ^~~~~~~~
/usr/include/c++/14/istream:126:32: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'}
126 | operator>>(__ios_type& (*__pf)(__ios_type&))
| ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/istream:133:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
133 | operator>>(ios_base& (*__pf)(ios_base&))
| ^~~~~~~~
/usr/include/c++/14/istream:133:30: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::ios_base& (*)(std::ios_base&)'
133 | operator>>(ios_base& (*__pf)(ios_base&))
| ~~~~~~~~~~~~^~~~~~~~~~~~~~~~
/usr/include/c++/14/istream:352:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; __streambuf_type = std::basic_streambuf<char>]'
352 | operator>>(__streambuf_type* __sb);
| ^~~~~~~~
/usr/include/c++/14/istream:352:36: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'}
352 | operator>>(__streambuf_type* __sb);
| ~~~~~~~~~~~~~~~~~~^~~~
In file included from /usr/include/c++/14/string:55,
from /usr/include/c++/14/bits/locale_classes.h:40,
from /usr/include/c++/14/bits/ios_base.h:41,
from /usr/in |
s803147342 | p03680 | C++ | #include <iostream>
#include <vector>
using namespace std;
int main() {
int n, c = 0;
vector <int> v[n];
cin >> n;
for (int i = 0; i < n; i++) {
cin >> v[i];
}
int a = v[0];
for (int j = 0; j < n; j++) {
if (v[a] == 2) {
cout << 0 << endl;
break;
} else {
a = v[a];
c++;
}
}
cout << "-1" << endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:10:21: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'std::vector<int>')
10 | cin >> v[i];
| ~~~ ^~ ~~~~
| | |
| | std::vector<int>
| std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/iostream:42,
from a.cc:1:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
170 | operator>>(bool& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:170:24: note: no known conversion for argument 1 from 'std::vector<int>' to 'bool&'
170 | operator>>(bool& __n)
| ~~~~~~^~~
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]'
174 | operator>>(short& __n);
| ^~~~~~~~
/usr/include/c++/14/istream:174:25: note: no known conversion for argument 1 from 'std::vector<int>' to 'short int&'
174 | operator>>(short& __n);
| ~~~~~~~^~~
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
177 | operator>>(unsigned short& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:177:34: note: no known conversion for argument 1 from 'std::vector<int>' to 'short unsigned int&'
177 | operator>>(unsigned short& __n)
| ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]'
181 | operator>>(int& __n);
| ^~~~~~~~
/usr/include/c++/14/istream:181:23: note: no known conversion for argument 1 from 'std::vector<int>' to 'int&'
181 | operator>>(int& __n);
| ~~~~~^~~
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
184 | operator>>(unsigned int& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:184:32: note: no known conversion for argument 1 from 'std::vector<int>' to 'unsigned int&'
184 | operator>>(unsigned int& __n)
| ~~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
188 | operator>>(long& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:188:24: note: no known conversion for argument 1 from 'std::vector<int>' to 'long int&'
188 | operator>>(long& __n)
| ~~~~~~^~~
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
192 | operator>>(unsigned long& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:192:33: note: no known conversion for argument 1 from 'std::vector<int>' to 'long unsigned int&'
192 | operator>>(unsigned long& __n)
| ~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
199 | operator>>(long long& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:199:29: note: no known conversion for argument 1 from 'std::vector<int>' to 'long long int&'
199 | operator>>(long long& __n)
| ~~~~~~~~~~~^~~
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
203 | operator>>(unsigned long long& __n)
| ^~~~~~~~
/usr/include/c++/14/istream:203:38: note: no known conversion for argument 1 from 'std::vector<int>' to 'long long unsigned int&'
203 | operator>>(unsigned long long& __n)
| ~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:219:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
219 | operator>>(float& __f)
| ^~~~~~~~
/usr/include/c++/14/istream:219:25: note: no known conversion for argument 1 from 'std::vector<int>' to 'float&'
219 | operator>>(float& __f)
| ~~~~~~~^~~
/usr/include/c++/14/istream:223:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
223 | operator>>(double& __f)
| ^~~~~~~~
/usr/include/c++/14/istream:223:26: note: no known conversion for argument 1 from 'std::vector<int>' to 'double&'
223 | operator>>(double& __f)
| ~~~~~~~~^~~
/usr/include/c++/14/istream:227:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
227 | operator>>(long double& __f)
| ^~~~~~~~
/usr/include/c++/14/istream:227:31: note: no known conversion for argument 1 from 'std::vector<int>' to 'long double&'
227 | operator>>(long double& __f)
| ~~~~~~~~~~~~~^~~
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
328 | operator>>(void*& __p)
| ^~~~~~~~
/usr/include/c++/14/istream:328:25: note: no known conversion for argument 1 from 'std::vector<int>' to 'void*&'
328 | operator>>(void*& __p)
| ~~~~~~~^~~
/usr/include/c++/14/istream:122:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
122 | operator>>(__istream_type& (*__pf)(__istream_type&))
| ^~~~~~~~
/usr/include/c++/14/istream:122:36: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'}
122 | operator>>(__istream_type& (*__pf)(__istream_type&))
| ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/istream:126:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]'
126 | operator>>(__ios_type& (*__pf)(__ios_type&))
| ^~~~~~~~
/usr/include/c++/14/istream:126:32: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'}
126 | operator>>(__ios_type& (*__pf)(__ios_type&))
| ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/istream:133:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
133 | operator>>(ios_base& (*__pf)(ios_base&))
| ^~~~~~~~
/usr/include/c++/14/istream:133:30: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::ios_base& (*)(std::ios_base&)'
133 | operator>>(ios_base& (*__pf)(ios_base&))
| ~~~~~~~~~~~~^~~~~~~~~~~~~~~~
/usr/include/c++/14/istream:352:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; __streambuf_type = std::basic_streambuf<char>]'
352 | operator>>(__streambuf_type* __sb);
| ^~~~~~~~
/usr/include/c++/14/istream:352:36: note: no known conversion for argument 1 from 'std::vector<int>' to 'std::basic_istream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'}
352 | operator>>(__streambuf_type* __sb);
| ~~~~~~~~~~~~~~~~~~^~~~
In file included from /usr/include/c++/14/string:55,
from /usr/include/c++/14/bits/locale_classes.h:40,
from /usr/include/c++/14/bits/ios_base.h:41,
from /usr/in |
s840225806 | p03680 | C++ | #include <iostream>
using namespace std;
int main() {
int N;
cin >> N;
int a[110000];
for(int i = 0; i < N; i++) cin >> a[i];
int cur_pos = 0;
int count = 0;
bool reachable = true;
int prev_pos1 = 0;
int prev_pos2 = 0;
bool reachable2 = false:
for(int i= 0; i < N; i++) {
if(a[i] == 2) {
reachable2 = true;
}
}
if(!reachable2) {
cout << "-1" << endl;
return 0;
}
while(1){
if(a[cur_pos] == 2) {
//到達できた場合
break;
}
if(count > 2) {
if(prev_pos2 == cur_pos || prev_pos1 == cur_pos) {
//ループしてる場合
reachable = false;
break;
}
}
prev_pos2 = prev_pos1;
prev_pos1 = cur_pos;
cur_pos = a[cur_pos];
count++;
}
if(!reachable) {
cout << "-1" << endl;
} else {
cout << count << endl;
}
return 0;
} | a.cc: In function 'int main()':
a.cc:18:28: error: expected ',' or ';' before ':' token
18 | bool reachable2 = false:
| ^
a.cc:19:19: error: 'i' was not declared in this scope
19 | for(int i= 0; i < N; i++) {
| ^
|
s865393337 | p03680 | C++ | #include <algorithm>
#include <cmath>
using namespace std;
int main(){
int N;
int a[200000];
bool b[200000];
bool clear = false;
int pos = 0;
int count = 1;
cin >> N;
for(int i=0;i<N;++i){
cin >> a[i];
b[i] = true;
}
for(int i=0;i<N;++i){
if(a[pos]-1 == 1){
clear = true;
break;
}else if(b[pos]){
b[pos] = false;
pos = a[pos]-1;
count++;
}else{
break;
}
}
if(clear){
cout << count << endl;
}else{
cout << -1 << endl;
}
}
| a.cc: In function 'int main()':
a.cc:13:3: error: 'cin' was not declared in this scope
13 | cin >> N;
| ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
2 | #include <cmath>
+++ |+#include <iostream>
3 | using namespace std;
a.cc:33:5: error: 'cout' was not declared in this scope
33 | cout << count << endl;
| ^~~~
a.cc:33:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:33:22: error: 'endl' was not declared in this scope
33 | cout << count << endl;
| ^~~~
a.cc:3:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
2 | #include <cmath>
+++ |+#include <ostream>
3 | using namespace std;
a.cc:35:5: error: 'cout' was not declared in this scope
35 | cout << -1 << endl;
| ^~~~
a.cc:35:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:35:19: error: 'endl' was not declared in this scope
35 | cout << -1 << endl;
| ^~~~
a.cc:35:19: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
|
s748182475 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
//container util
//------------------------------------------
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
//repetition
//------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}
//debug
#define dump(x) cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;
//math
//-------------------------------------------
template<class T> inline T sqr(T x) {return x*x;}
typedef long long LL;
const LL mod=1000000007;
#define MAX 10000
#define NIL -1
const double PI = acos(-1.0);
const int INF = 1e9 + 7;
//-------------------------------------------
int main(){
cin.tie(0);
ios::sync_with_stdio(false);
int N, a[MAX], cnt = 0;
cin >> N;
bool flag = false;
for (int i = 1; i <= N; i++){
cin >> a[i];
}
for( int i = 1; ; ){
cnt++;
if( a[i] == 2){
flag = true;
break;
}
i = a[i];
if (cnt > N){ break;
}
if (flag){ cout << cnt << endl;}
else{ cout << -1 << endl;}
return 0;
}
| a.cc: In function 'int main()':
a.cc:67:2: error: expected '}' at end of input
67 | }
| ^
a.cc:38:11: note: to match this '{'
38 | int main(){
| ^
|
s883987994 | p03680 | Java | import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int N = sc.nextInt();
int[] a = new int[N];
for(int i = 0;i < N;i++)a[i] = sc.nextInt();
int b = 0;
int c = 0;
for(int i = 0;;i++){
if(a[b] == 2){
System.out.println(i+1);
break;
}
else if(a[b] == 1){
System.out.println("-1");
break;
}
c = a[b];
else b = c-1;
}
}}
| Main.java:20: error: 'else' without 'if'
else b = c-1;
^
1 error
|
s363777330 | p03680 | C++ | #include <iostream>
using namespace std;
int main(){
int N;
cin >> N;
int a[N];
for(int i=0; i<N; i++) cin >> a[i];
Light=a[0];
while(Light!=1){
Light=a[Light-1];
if(Light==2){
break;
}
}
if(Light==1) cout << "No" << endl;
if(Light==2) cout << "Yes" << endl;
} | a.cc: In function 'int main()':
a.cc:10:9: error: 'Light' was not declared in this scope
10 | Light=a[0];
| ^~~~~
|
s001879036 | p03680 | C++ | #include<iostream>
#include<math.h>
#include<string>
#include<algorithm>
using namespace std;
#define rep0(n) for(int i=0;i<n;i++)
#define rep(n) for(int i=1;i<=n;i++)
double const pi=3.1415926535;
int printint(int n){
cout<<n<<endl;
return 0;
}
int prints(string s){
cout<<s<<endl;
return 0;
}
int main(){
int n;
cin>>n;
int a[114514];
rep(n)cin>>a[i];
bool a[114514];
rep(n)a[i]=false;
int index=1;
int ans=0;
while(true){
if(a[index]==true){
cout<<-1<<endl;
return 0;
}
ans++;
a[index]=true;
index=a[index];
if(index==2){
cout<<ans<<endl;
return 0;
}
}
} | a.cc: In function 'int main()':
a.cc:27:14: error: conflicting declaration 'bool a [114514]'
27 | bool a[114514];
| ^
a.cc:25:13: note: previous declaration as 'int a [114514]'
25 | int a[114514];
| ^
|
s582089016 | p03680 | C++ | #include<iostream>
using namespace std;
const int max = 100010;
int main() {
int N;
int an[max];
int count = 1;
int index = 0;
bool check = false;
cin >> N;
for (int i = 0; i < N; i++) {
cin >> an[i];
}
for (int i = 0; i < N; i++) {
if (an[index] == 2) {
check = true;
break;
}
count++;
index = an[index] - 1;
}
if (check) cout << count << endl;
else cout << -1 << endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:7:16: error: reference to 'max' is ambiguous
7 | int an[max];
| ^~~
In file included from /usr/include/c++/14/string:51,
from /usr/include/c++/14/bits/locale_classes.h:40,
from /usr/include/c++/14/bits/ios_base.h:41,
from /usr/include/c++/14/ios:44,
from /usr/include/c++/14/ostream:40,
from /usr/include/c++/14/iostream:41,
from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidates are: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
303 | max(const _Tp& __a, const _Tp& __b, _Compare __comp)
| ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
257 | max(const _Tp& __a, const _Tp& __b)
| ^~~
a.cc:3:11: note: 'const int max'
3 | const int max = 100010;
| ^~~
a.cc:15:24: error: 'an' was not declared in this scope
15 | cin >> an[i];
| ^~
a.cc:19:21: error: 'an' was not declared in this scope
19 | if (an[index] == 2) {
| ^~
a.cc:24:25: error: 'an' was not declared in this scope
24 | index = an[index] - 1;
| ^~
|
s280529004 | p03680 | C++ | #include <algorithm>
#include <climits>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <ctime>
#include <iostream>
#include <sstream>
#include <functional>
#include <map>
#include <string>
#include <cstring>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <set>
#include <list>
#include <numeric>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll> P;
const double PI = 3.14159265358979323846;
const double EPS = 1e-12;
const ll INF = 1LL<<29;
const ll mod = 1e9+7;
#define rep(i,n) for(int (i)=0;(i)<(ll)(n);++(i))
#define repd(i,n,d) for(ll (i)=0;(i)<(ll)(n);(i)+=(d))
#define all(v) (v).begin(), (v).end()
#define pb(x) push_back(x)
#define mp(x,y) make_pair((x),(y))
#define mset(m,v) memset((m),(v),sizeof(m))
#define chmin(x,y) (x=min(x,y))
#define chmax(x,y) (x=max(x,y))
#define fst first
#define snd second
#define UNIQUE(x) (x).erase(unique(all(x)),(x).end())
template<class T> ostream &operator<<(ostream &os, const vector<T> &v){int n=v.size();rep(i,n)os<<v[i]<<(i==n-1?"":" ");return os;}
int main(){
cin>>n;
vector<int> a(n); rep(i, n) cin>>a[i], a[i]--;
for(int i = 0, j = 0; i < 2*n; i++){
if(j==1){
cout<<i<<endl;
return 0;
}
j = a[i];
}
cout<<-1<<endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:42:14: error: 'n' was not declared in this scope; did you mean 'yn'?
42 | cin>>n;
| ^
| yn
|
s269690664 | p03680 | C++ | if __name__ == "__main__":
N = int(input())
A = []
for x in range(N):
y = int(input())
y -= 1
A.append(y)
pos = 0
cnt = 0
visited = set()
while (cnt <= N + 1):
visited.add(pos)
if (pos == 1):
print (cnt)
exit()
pos = A[pos]
cnt += 1
if pos in visited:
break
print (-1)
| a.cc:1:1: error: expected unqualified-id before 'if'
1 | if __name__ == "__main__":
| ^~
|
s097705694 | p03680 | C++ | //abc065_b Trained?
#include <bits/stdc++.h>
using namespace std;
namespace
{
bool bFlag[ 100010 ];
int a[ 100010 ];
}
int main()
{
int i;
int N;
int iCnt;
cin >> N;
for( i = 1; i <= N; i++ )
{
cin >> a[ i ];
}
iCnt = 1;
i = 1;
while( ! bFlag[ i ] )
{
bFlag[ i ] = true;
if( i == 2 )
{
cout << iCnt << endl;
return 0;
}
iCnt++;
i = a[ i ]
}
cout << - 1 << endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:38:27: error: expected ';' before '}' token
38 | i = a[ i ]
| ^
| ;
39 | }
| ~
|
s493749225 | p03680 | C++ | button = $stdin.read.split("\n")
button.map! do |element|
element.to_i
end
button.shift()
current = 0
cnt = 0
while true
if current == 1
print("#{cnt}\n")
break
elsif cnt >= button.size
print("-1\n")
break
end
cnt += 1
current = button[current-1]
end
| a.cc:1:1: error: 'button' does not name a type
1 | button = $stdin.read.split("\n")
| ^~~~~~
|
s249300559 | p03680 | C | #include <stdio.h>
#define MAX 10000
int main(void){
int N, c, now, a[MAX];
scanf("%d", &N);
for(i=0;i<N;i++){
scanf("%d", &(a[i]));
a[i]--;
}
c = 0;
now = 0;
while(1){
if(now == 1){
printf("%d\n", c);
break;
}
if(c >= N){
printf("-1\n");
break;
}
c++;
now = a[now];
}
return 0;
} | main.c: In function 'main':
main.c:7:7: error: 'i' undeclared (first use in this function)
7 | for(i=0;i<N;i++){
| ^
main.c:7:7: note: each undeclared identifier is reported only once for each function it appears in
|
s631676875 | p03680 | C++ | #include <stdio.h>
#include <vector>
#include <algorithm>
using namespace std;
int main(){
int n;
cin>>n;
vector<int> a(n);
for(int i=0; i<n; i++){
cin>>a[i];
}
int index=0;
int i=0;
while(i<=n){
if(a[index]==2){
cout<<index+1<<endl;
break;
}
index=a[index]-1;
i++;
}
} | a.cc: In function 'int main()':
a.cc:9:5: error: 'cin' was not declared in this scope
9 | cin>>n;
| ^~~
a.cc:4:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
3 | #include <algorithm>
+++ |+#include <iostream>
4 |
a.cc:19:13: error: 'cout' was not declared in this scope
19 | cout<<index+1<<endl;
| ^~~~
a.cc:19:13: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:19:28: error: 'endl' was not declared in this scope
19 | cout<<index+1<<endl;
| ^~~~
a.cc:4:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
3 | #include <algorithm>
+++ |+#include <ostream>
4 |
|
s451752422 | p03680 | C++ | int main(void) {
int a;
scanf("%d", &a);
int A[a];
for (int i = 0; i < a; i++ ) {
scanf("%d", &A[i]);
}
int light;
int count = 1;
for (light = A[0]; light != 2; count++) {
if (count >= a ) {
printf("-1");
break;
}
light = A[light-1];
}
if (light == 2 ) {
printf("%d\n", count);
}
return 0;
} | a.cc: In function 'int main()':
a.cc:3:4: error: 'scanf' was not declared in this scope
3 | scanf("%d", &a);
| ^~~~~
a.cc:12:10: error: 'printf' was not declared in this scope
12 | printf("-1");
| ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
+++ |+#include <cstdio>
1 | int main(void) {
a.cc:18:7: error: 'printf' was not declared in this scope
18 | printf("%d\n", count);
| ^~~~~~
a.cc:18:7: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
|
s099293361 | p03680 | C++ | #include <iostream>
using namespace std;
#define Nmax 100000
int main() {
int N;
int a;
int start;
int Nnum[Nmax];
scanf("%d", &N);
for (int i = 1; i < N + 1; i++) {
scanf("%d", &a);
Nnum[i] = a;
}
int next = 1;
int count = 0;
while (count<N) {
next = Nnum[next];
count++;
if (next == 2)
break;
}
if (next == 2)
printf("%d\n", count);
else
printf("%d\n", -1);
| a.cc: In function 'int main()':
a.cc:26:36: error: expected '}' at end of input
26 | printf("%d\n", -1);
| ^
a.cc:5:12: note: to match this '{'
5 | int main() {
| ^
|
s610691508 | p03680 | C++ | #i n cl u d e <s t d i o . h>
#i n cl u d e <v e c t o r>
#i n cl u d e <al g o ri thm>
u si n g namespace s t d ;
i n t main ( )
{
i n t n ;
s c a n f (”%d ” , &n ) ;
v e c t o r<i n t>v ;
f o r ( i n t i = 0 ; i < n ; i++)
{
i n t z ;
s c a n f (”%d ” , &z ) ;
z−−;
v . push back ( z ) ;
}
i n t now = 0 , c = 0 ;
f o r ( ; ; )
{
i f ( now == 1 )
{
p r i n t f (”%d\n ” , c ) ;
break ;
}
i f ( c >= n )
{
p r i n t f (”−1\n ” ) ;
break ;
}
c++;
now = v [ now ] ;
}
} | a.cc:1:2: error: invalid preprocessing directive #i; did you mean #if?
1 | #i n cl u d e <s t d i o . h>
| ^
| if
a.cc:2:2: error: invalid preprocessing directive #i; did you mean #if?
2 | #i n cl u d e <v e c t o r>
| ^
| if
a.cc:3:2: error: invalid preprocessing directive #i; did you mean #if?
3 | #i n cl u d e <al g o ri thm>
| ^
| if
a.cc:8:12: error: extended character ” is not valid in an identifier
8 | s c a n f (”%d ” , &n ) ;
| ^
a.cc:8:16: error: extended character ” is not valid in an identifier
8 | s c a n f (”%d ” , &n ) ;
| ^
a.cc:13:12: error: extended character ” is not valid in an identifier
13 | s c a n f (”%d ” , &z ) ;
| ^
a.cc:13:16: error: extended character ” is not valid in an identifier
13 | s c a n f (”%d ” , &z ) ;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
14 | z−−;
| ^
a.cc:14:1: error: extended character − is not valid in an identifier
a.cc:22:14: error: extended character ” is not valid in an identifier
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:22:17: error: stray '\' in program
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:22:20: error: extended character ” is not valid in an identifier
22 | p r i n t f (”%d\n ” , c ) ;
| ^
a.cc:27:14: error: extended character ” is not valid in an identifier
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:27:14: error: extended character − is not valid in an identifier
a.cc:27:17: error: stray '\' in program
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:27:20: error: extended character ” is not valid in an identifier
27 | p r i n t f (”−1\n ” ) ;
| ^
a.cc:4:1: error: 'u' does not name a type
4 | u si n g namespace s t d ;
| ^
a.cc:5:1: error: 'i' does not name a type
5 | i n t main ( )
| ^
|
s861083524 | p03680 | C++ | #include <iostream>
using namespace std;
int main()
{
int n, i, j, k, x, y, z, c=0;
cin. tie(0);
for (i = 1; i <= n; i++) cin>> A[i];
x = 1;
c = 0;
mark[1] = 1;
while (x != 2) {
c++;
x=A[x];
if (mark[x]) break;
mark[x] = 1;
}
if(x == 2) cout << c << endl;
else cout << -1 << endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:7:32: error: 'A' was not declared in this scope
7 | for (i = 1; i <= n; i++) cin>> A[i];
| ^
a.cc:10:1: error: 'mark' was not declared in this scope
10 | mark[1] = 1;
| ^~~~
a.cc:13:13: error: 'A' was not declared in this scope
13 | x=A[x];
| ^
|
s778736217 | p03680 | C++ | #include <iostream>
using namespace std;
int main()
{
int n,i,j,k,x,y,z,c=0;
cin>>n;
for(i=1;i<=n;++i)cin>>A[i];
x=1;
c=0;
mark[1]=1;
while(x!=2)
{
c++;
x=A[x];if(mark[x])break;
mark[x]=1;
}
if(x==2)cout<<e<<endl;
else cout<<-1<<endl;
return 0;
}
| a.cc: In function 'int main()':
a.cc:7:31: error: 'A' was not declared in this scope
7 | for(i=1;i<=n;++i)cin>>A[i];
| ^
a.cc:10:9: error: 'mark' was not declared in this scope
10 | mark[1]=1;
| ^~~~
a.cc:14:11: error: 'A' was not declared in this scope
14 | x=A[x];if(mark[x])break;
| ^
a.cc:17:19: error: 'e' was not declared in this scope
17 | if(x==2)cout<<e<<endl;
| ^
|
s385541285 | p03680 | C++ | #include<iostream>
using namespace std;
int mark[100001],A[100001]
int main()
{
ios_base::sync_with_stdio(false)
cin.tie(0);
int n,i,j,k,x,y,z,c=0;
cin>>n;
for(i=1;i<=n;++1)cin>>A[i]
x=1;
c=0;
mark[1]=1;
while(x!=2){
c++;
x=A[x];
if(mark[x])break;
mark[x]=1;
}
if(x==2)cout<<c<<end;
else cout<<-1<<endl;
return 0;
}
| a.cc:4:1: error: expected initializer before 'int'
4 | int main()
| ^~~
|
s808514937 | p03680 | C++ | #include <iostream>
#include <utility>
#include <cstdlib>
#include <cstdio>
#include <vector>
#include <queue>
#include <cmath>
#include <map>
#include <set>
#include <stdio.h>
#include <algorithm>
#include <iomanip>
#include <string>
#include <cctype>
#include <string.h>
#include <ctime>
#include <windows.h>
using namespace std;
int mark[100001],a[100001];
int main()
{
int x,c,n,i,j,k,y,z;
cin>>n;
for (i=1;i<=n;i++) cin>>a[i];
x=1;
c=0;
while (x!=2)
{
c++;
x=a[x];
if (mark[x]) break;
mark[x]=1;
}
if (x==2)
cout<<c<<endl;
else
cout<<"-1"<<endl;
return 0;
}
| a.cc:17:10: fatal error: windows.h: No such file or directory
17 | #include <windows.h>
| ^~~~~~~~~~~
compilation terminated.
|
s060374397 | p03680 | C++ | #include <iostream>
#include <utility>
#include <cstdlib>
#include <cstdio>
#include <vector>
#include <queue>
#include <cmath>
#include <map>
#include <set>
#include <stdio.h>
#include <algorithm>
#include <iomanip>
#include <string>
#include <cctype>
#include <string.h>
#include <ctime>
#include <conio.h>
#include <windows.h>
using namespace std;
int mark[100001],a[100001];
int main()
{
int x,c,n,i,j,k,y,z;
cin>>n;
for (i=1;i<=n;i++) cin>>a[i];
x=1;
c=0;
while (x!=2)
{
c++;
x=a[x];
if (mark[x]) break;
mark[x]=1;
}
if (x==2)
cout<<c<<endl;
else
cout<<"-1"<<endl;
return 0;
}
| a.cc:17:10: fatal error: conio.h: No such file or directory
17 | #include <conio.h>
| ^~~~~~~~~
compilation terminated.
|
s893704843 | p03680 | C++ | #include <iostream>
#include <utility>
#include <cstdlib>
#include <cstdio>
#include <vector>
#include <queue>
#include <cmath>
#include <map>
#include <set>
#include <stdio.h>
#include <algorithm>
#include <iomanip>
#include <string>
#include <cctype>
#include <string.h>
#include <ctime>
#include <conio.h>
#include <windows.h>
using namespace std;
int a[100005],b[100005];
int main()
{
int n,s=0;
cin>>n;
for (int i=1;i<=n;i++){
cin>>a[i];
}
for (int i=1;i<=100005;)
{
b[i]=1;
i=a[i];
s++;
if (i==2)
{
cout<<s<<endl;
return 0;
}
else if (b[i]==1)
{
cout<<"-1"<<endl;
return 0;
}
}
return 0;
}
| a.cc:17:10: fatal error: conio.h: No such file or directory
17 | #include <conio.h>
| ^~~~~~~~~
compilation terminated.
|
s054700205 | p03680 | C++ | #include<iostream>
#include<Cstring>
using namespace std;
int main(){
int N;
int j=0;
int b=1;
int c[100000];
int d=0;
int a[100000];
cin>>N;
for(int i=1;i<=N;i++){
cin>>a[i];
}
while(b!=2){
c[j]=b;
for(int k=0;k<=j;k++){
if(c[k]==b) d=1;
}
if(d==1) break;
else {
j++;
b=a[b];
}
}
if(d==0) cout<<j<<endl;
else cout<<"-1"<<endl;
} | a.cc:2:9: fatal error: Cstring: No such file or directory
2 | #include<Cstring>
| ^~~~~~~~~
compilation terminated.
|
s978855219 | p03680 | C++ | // 170613_test.cpp : メイン プロジェクト ファイルです。
#include "stdio.h"
#include "stdafx.h"
using namespace System;
int main()
{
int n;
scanf("%d", &n);
int a[n];
for (int i = 0; i < n; i++) {
scanf("%d", &a[i]);
}
int f = 0;
int tmp = 1;
for (int j = 0; j < n; j++) {
tmp = a[tmp - 1];
if (tmp = 2) {
printf(j);
break;
f = 1;
}
}
if (f == 0) {
printf("-1");
}
return 0;
} | a.cc:4:10: fatal error: stdafx.h: No such file or directory
4 | #include "stdafx.h"
| ^~~~~~~~~~
compilation terminated.
|
s602400947 | p03680 | Java | package atcoder;
import java.util.Scanner;
import java.io.PrintWriter;
public class TaskB {
public void solve(int testNumber, Scanner in, PrintWriter out) {
int n = in.nextInt();
int[]arr = new int[n+1];
for(int i = 1; i <= n; ++i) {
arr[i] = in.nextInt();
}
boolean[] vis = new boolean[n+1];
int cur = 1;
int ans = 0;
while(cur != 2 && !vis[cur]) {
vis[cur] = true;
cur = arr[cur];
++ans;
}
out.println(cur != 2 ? -1 : ans);
}
}
| Main.java:6: error: class TaskB is public, should be declared in a file named TaskB.java
public class TaskB {
^
1 error
|
s911419249 | p03680 | C++ | #define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstdio>
using namespace std;
int vals[100001];
int vis[100001];
int main() {
int N;
scanf("%d",&N);
for (int i = 1; i <= N; i++) {
scanf("%d", &vals[i]);
}
memset(vis, 0, sizeof vis);
bool good = false;
int counter = 0;
int cur = 1;
while (true) {
if (vis[cur]) {
break;
}
vis[cur] = 1;
cur = vals[cur];
counter++;
if (cur == 2) {
good = true;
break;
}
}
if (good) {
printf("%d", counter);
}
else {
printf("-1");
}
return 0;
} | a.cc: In function 'int main()':
a.cc:13:9: error: 'memset' was not declared in this scope
13 | memset(vis, 0, sizeof vis);
| ^~~~~~
a.cc:4:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
3 | #include <cstdio>
+++ |+#include <cstring>
4 | using namespace std;
|
s925223238 | p03680 | C++ | #include<iostream>
using namespace std;
int main(){
int n,b=1,count=0,d;
cin>>n;
int a[n];
for(int i=0;i<n;i++){
cin>>a[i];
}
while(a[b-1]!=0 && a[b-1]!=2){
d=b;
b=a[b-1];
a[d-1]=0;
count=count+1;
}
if(a[b-1]==2){
cout<<count+1<<<endl;
}
else{
cout<<"-1"<<endl;
}
return 0;
}
| a.cc: In function 'int main()':
a.cc:17:32: error: expected primary-expression before '<' token
17 | cout<<count+1<<<endl;
| ^
|
s623382247 | p03680 | C++ | #include<iostream>
using namespace std;
int main(){
int n,b=1,countnt=0,d;
cin>>n;
int a[n];
for(int i=0;i<n;i++){
cin>>a[i];
}
while(a[b-1]!=0 && a[b-1]!=2){
d=b;
b=a[b-1];
a[d-1]=0;
count=count+1;
}
if(a[b-1]==2){
cout<<count+1<<<endl;
}
else{
cout<<"-1"<<endl;
}
return 0;
}
| a.cc: In function 'int main()':
a.cc:14:17: error: 'count' was not declared in this scope; did you mean 'countnt'?
14 | count=count+1;
| ^~~~~
| countnt
a.cc:17:23: error: 'count' was not declared in this scope; did you mean 'countnt'?
17 | cout<<count+1<<<endl;
| ^~~~~
| countnt
a.cc:17:32: error: expected primary-expression before '<' token
17 | cout<<count+1<<<endl;
| ^
|
s131111122 | p03680 | C++ | #include<iostream>
using namespace std;
int main(){
int n,b=1,c=0,d;
cin>>n;
int a[n];
for(int i=0;i<n;i++){
cin>>a[i];
}
while(a[b-1]!=0 && a[b-1]!=2){
d=b;
b=a[b-1];
a[d-1]=0;
count=count+1;
}
if(a[b-1]==2){
cout<<count+1<<<endl;
}
else{
cout<<"-1"<<endl;
}
return 0;
}
| a.cc: In function 'int main()':
a.cc:14:17: error: 'count' was not declared in this scope
14 | count=count+1;
| ^~~~~
a.cc:17:23: error: 'count' was not declared in this scope
17 | cout<<count+1<<<endl;
| ^~~~~
a.cc:17:32: error: expected primary-expression before '<' token
17 | cout<<count+1<<<endl;
| ^
|
s190446347 | p03680 | C++ | #include<iostream>
using namespace std;
int main(){
int n,b=1,c=0,d;
cin>>n;
int a[n];
for(int i=0;i<nli++){
cin>>a[i];
}
while(a[b-1]!=0 && a[b-1]!=2){
d=b;
b=a[b-1];
a[d-1]=0;
count=count+1;
}
if(a[b-1]==2){
cout<<count+1<<<endl;
}
else{
cout<<"-1"<<endl;
}
return 0;
}
| a.cc: In function 'int main()':
a.cc:7:23: error: 'nli' was not declared in this scope
7 | for(int i=0;i<nli++){
| ^~~
a.cc:7:28: error: expected ';' before ')' token
7 | for(int i=0;i<nli++){
| ^
| ;
a.cc:14:17: error: 'count' was not declared in this scope
14 | count=count+1;
| ^~~~~
a.cc:17:23: error: 'count' was not declared in this scope
17 | cout<<count+1<<<endl;
| ^~~~~
a.cc:17:32: error: expected primary-expression before '<' token
17 | cout<<count+1<<<endl;
| ^
|
s257727272 | p03680 | C++ | #include <iostream>
using namespace std;
int main() {
int n,k=0,i;
bool m1 = true;4
cin >> n;
int *a = new int[n];
for (i = 0; i < n; i++) {
cin >> a[i];
}
i = 0;
while (m1) {
k++;
if (a[i] == 2) { m1 = false;}
else { i = a[i];
if (k > n) { m1 = false; k = -1; }
}
}
cout << k;
return 0;
} | a.cc: In function 'int main()':
a.cc:7:25: error: expected ';' before 'cin'
7 | bool m1 = true;4
| ^
| ;
8 |
9 | cin >> n;
| ~~~
|
s302314017 | p03680 | C++ | #include <iostream>
using namespace std;
int a[123456];
int main(){
int n;cin>>n;
for(int i=0;i<n;++i){cin>>a[i];a[i]--;}
int inf = 200000;
int mi=inf;
int pos=0;
for (int i=0;i<inf;++i){
if(pos==1) mi = min(mi, i);
pos=a[pos];
}
cout<<(mi==inf?-1:mi) << endl; | a.cc: In function 'int main()':
a.cc:14:31: error: expected '}' at end of input
14 | cout<<(mi==inf?-1:mi) << endl;
| ^
a.cc:4:11: note: to match this '{'
4 | int main(){
| ^
|
s749935849 | p03680 | C++ | N=int(raw_input())
a=[-1]
for _ in range(N):
a.append(int(raw_input()))
i=1
c=0
while(1):
if i==2:
print c
break
elif c>=N:
print -1
break
c+=1
i=a[i]
| a.cc:1:1: error: 'N' does not name a type
1 | N=int(raw_input())
| ^
|
s220661152 | p03680 | C++ | from collections import defaultdict,deque
dic=defaultdict(list)
n=int(input())
for i in range(1,n+1):
num=int(input())
dic[num].append(i)
que=deque()
que.append(2)
co=0
while que:
key=que.popleft()
co+=1
if co>n:
print(str(-1))
break
if key==2:
print(n)
break
for i in dic[key]:
que.append(i)
else:
print(-1)
break
| a.cc:1:1: error: 'from' does not name a type
1 | from collections import defaultdict,deque
| ^~~~
|
s872251071 | p03680 | Java | import java.util.Scanner;
public class B {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int N = Integer.valueOf(sc.nextInt());
int a[] = new int[N];
int i;
for(i=0; i<N; i++){
a[i] = sc.nextInt();
}
int judge=0;
i = 0;
int count=0;
while(judge != 2){
judge = a[i];
count++;
i = judge-1;
if(count > N) break;
}
if(count<N){
System.out.println(count);
}
else{
System.out.println(-1);
}
}
} | Main.java:3: error: class B is public, should be declared in a file named B.java
public class B {
^
1 error
|
s402074211 | p03680 | Java | import java.io.IOException;
import java.util.Scanner;
public class PB {
public static int searchId(int n, int[] a, int id) throws IOException {
for (int i = 0; i < n; i++) {
if (a[i] == id)
return i + 1;
}
return -1;
}
public static void solve() throws IOException {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int[] a = new int[n];
for (int i = 0; i < n; i++) {
a[i] = sc.nextInt();
}
int cnt = 1;
int id = searchId(n, a, 2);
if (id == 1) {
System.out.println(cnt);
} else if (id == -1) {
System.out.println(-1);
} else {
for (int i = 0; i < n; i++) {
cnt++;
id = searchId(n, a, id);
if (id == 1) {
System.out.println(cnt);
break;
} else if (id == -1) {
System.out.println(-1);
break;
}
}
}
if (id != 1 && id != -1 && cnt == n + 1)
System.out.println(-1);
sc.close();
}
public static void main(String[] args) {
try {
solve();
} catch (IOException e) {
e.printStackTrace();
}
}
}
| Main.java:4: error: class PB is public, should be declared in a file named PB.java
public class PB {
^
1 error
|
s620711616 | p03680 | C++ | #include <cstdio>
#include <cstring>
#include <cmath>
#include <algorithm>
using namespace std;
int n, ans;
int a[100005];
int flag;
int main()
{
flag = 0;
ans = 0;
memset(a, 0, sizeof(a));
scanf("%d", &n);
for(int i = 1; i <= n; i++)
{
scanf("%d", &a[i]);
}
int p = a[1];
a[1] = 0;
while(true)
{
if(ans > 1000000 || a[o] == 0) {flag = 1; break;}
if(p == 2) break;
ans++;
int o = p;
p = a[p];
a[o] = 0;
}
if(flag == 1) printf("-1\n");
else printf("%d\n", ans);
return 0;
} | a.cc: In function 'int main()':
a.cc:24:39: error: 'o' was not declared in this scope
24 | if(ans > 1000000 || a[o] == 0) {flag = 1; break;}
| ^
|
s236293746 | p03680 | C++ | v | a.cc:1:1: error: 'v' does not name a type
1 | v
| ^
|
s243926926 | p03680 | C++ | #include <iostream>
#include <vector>
#include <alglorithm>
using namespace std;
int main(){
long n;
vector<long> a[100000], res;
cin >> n;
for (long i = 0;i<n;i++) {
long ai;
cin >> ai;
a[(ai-1)].push_back(i);
}
res = a[1];
if (find(res.begin(), res.end(), (long)0)!=res.end()) {
cout << 1 << endl;
return 0;
}
res = a[1];
for (long i=0;i<=n;i++) {
vector<long> tmp;
for (auto it=res.begin();it!=res.end();it++) {
tmp.insert(tmp.end(), a[(*it)].begin(), a[(*it)].end());
}
res = tmp;
if (find(tmp.begin(), tmp.end(), (long)0)!=tmp.end()) {
cout << (i+2) << endl;
return 0;
}
}
cout << -1 << endl;
return 1;
}
| a.cc:3:10: fatal error: alglorithm: No such file or directory
3 | #include <alglorithm>
| ^~~~~~~~~~~~
compilation terminated.
|
s787423600 | p03680 | C++ | #include <iostream>
#include <vector>
using namespace std;
int main(){
long n;
vector<long> a[100000], res;
cin >> n;
for (long i = 0;i<n;i++) {
long ai;
cin >> ai;
a[(ai-1)].push_back(i);
}
res = a[1];
if (find(res.begin(), res.end(), (long)0)!=res.end()) {
cout << 1 << endl;
return 0;
}
res = a[1];
for (long i=0;i<=n;i++) {
vector<long> tmp;
for (auto it=res.begin();it!=res.end();it++) {
tmp.insert(tmp.end(), a[(*it)].begin(), a[(*it)].end());
}
res = tmp;
if (find(tmp.begin(), tmp.end(), (long)0)!=tmp.end()) {
cout << (i+2) << endl;
return 0;
}
}
cout << -1 << endl;
return 1;
}
| a.cc: In function 'int main()':
a.cc:18:11: error: no matching function for call to 'find(std::vector<long int>::iterator, std::vector<long int>::iterator, long int)'
18 | if (find(res.begin(), res.end(), (long)0)!=res.end()) {
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/bits/locale_facets.h:48,
from /usr/include/c++/14/bits/basic_ios.h:37,
from /usr/include/c++/14/ios:46,
from /usr/include/c++/14/ostream:40,
from /usr/include/c++/14/iostream:41,
from a.cc:1:
/usr/include/c++/14/bits/streambuf_iterator.h:435:5: note: candidate: 'template<class _CharT2> typename __gnu_cxx::__enable_if<std::__is_char<_CharT2>::__value, std::istreambuf_iterator<_CharT> >::__type std::find(istreambuf_iterator<_CharT>, istreambuf_iterator<_CharT>, const _CharT2&)'
435 | find(istreambuf_iterator<_CharT> __first,
| ^~~~
/usr/include/c++/14/bits/streambuf_iterator.h:435:5: note: template argument deduction/substitution failed:
a.cc:18:11: note: '__gnu_cxx::__normal_iterator<long int*, std::vector<long int> >' is not derived from 'std::istreambuf_iterator<_CharT>'
18 | if (find(res.begin(), res.end(), (long)0)!=res.end()) {
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:29:13: error: no matching function for call to 'find(std::vector<long int>::iterator, std::vector<long int>::iterator, long int)'
29 | if (find(tmp.begin(), tmp.end(), (long)0)!=tmp.end()) {
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/streambuf_iterator.h:435:5: note: candidate: 'template<class _CharT2> typename __gnu_cxx::__enable_if<std::__is_char<_CharT2>::__value, std::istreambuf_iterator<_CharT> >::__type std::find(istreambuf_iterator<_CharT>, istreambuf_iterator<_CharT>, const _CharT2&)'
435 | find(istreambuf_iterator<_CharT> __first,
| ^~~~
/usr/include/c++/14/bits/streambuf_iterator.h:435:5: note: template argument deduction/substitution failed:
a.cc:29:13: note: '__gnu_cxx::__normal_iterator<long int*, std::vector<long int> >' is not derived from 'std::istreambuf_iterator<_CharT>'
29 | if (find(tmp.begin(), tmp.end(), (long)0)!=tmp.end()) {
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
s775485521 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
#define forn(i, s, f) for(int i = (s); i <= (f); ++i)
#define for1(i, f, s) for(int i = (f); i >= (s); --i)
#define fora(i, x) for (auto i : x)
#define show(x) cout << #x << " = " << x << " ";
#define skip continue;
#define pb push_back
#define _1 first
#define _2 second
typedef long long ll;
const int N3 = 1e3 + 5;
const int N4 = 1e4 + 5;
const int N5 = 1e5 + 5;
const int N6 = 1e6 + 5;
const int N7 = 1e7 + 5;
const int N8 = 1e8 + 5;
const int N9 = 1e9 + 5;
const int mod = N9 + 2;
int ans, n, x;
vector < int > g[N5];
dfs (int v, int h)
{
++ans;
// cout << v << " ";
if (v == 2)
{
cout << ans - 1;
exit(0);
}
if (h == 1 && v == 1)
{
cout << -1;
exit(0);
}
fora (to, g[v])
dfs(to, 1);
}
int main()
{
cin >> n;
forn (i, 1, n)
{
cin >> x;
g[i].pb(x);
}
dfs(1, -1);
cout << ans - 1;
}
| a.cc:29:1: error: ISO C++ forbids declaration of 'dfs' with no type [-fpermissive]
29 | dfs (int v, int h)
| ^~~
a.cc: In function 'int dfs(int, int)':
a.cc:45:1: warning: control reaches end of non-void function [-Wreturn-type]
45 | }
| ^
|
s844211619 | p03680 | C++ |
言 2017/6/24 21:10:57
#include <stdio.h>
#define MAX 100000
int main()
{
int n,num=0;
int a[MAX];
int i;
scanf("%d",&n);
for(i=1;i<=n;i++)
scanf("%d",&a[i]);
i=1;
while(1)
{
num++;
if(a[i]==2)
{
printf("%d",num);
break;
}
i=a[i];
if(num>n)
{
printf("-1");
break;
}
}
} | a.cc:2:1: error: '\U00008a00' does not name a type
2 | 言 2017/6/24 21:10:57
| ^~
a.cc: In function 'int main()':
a.cc:10:9: error: 'scanf' was not declared in this scope
10 | scanf("%d",&n);
| ^~~~~
a.cc:19:25: error: 'printf' was not declared in this scope
19 | printf("%d",num);
| ^~~~~~
a.cc:4:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
3 | #include <stdio.h>
+++ |+#include <cstdio>
4 | #define MAX 100000
a.cc:25:25: error: 'printf' was not declared in this scope
25 | printf("-1");
| ^~~~~~
a.cc:25:25: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
|
s234434061 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
#define forn(i, s, f) for(int i = (s); i <= (f); ++i)
#define for1(i, f, s) for(int i = (f); i >= (s); --i)
#define fora(i, x) for (auto i : x)
#define show(x) cout << #x << " = " << x << " ";
#define skip continue;
#define pb push_back
#define _1 first
#define _2 second
typedef long long ll;
const int N3 = 1e3 + 5;
const int N4 = 1e4 + 5;
const int N5 = 1e5 + 5;
const int N6 = 1e6 + 5;
const int N7 = 1e7 + 5;
const int N8 = 1e8 + 5;
const int N9 = 1e9 + 5;
const int mod = N9 + 2;
int ans, n, x;
vector < int > g[N5];
dfs (int v, int h = -1)
{
++ans;
// cout << v << " ";
if (v == 2)
{
cout << ans - 1;
exit(0);
}
if (h == 1 && v == 1)
{
cout << -1;
exit(0);
}
fora (to, g[v])
dfs(to, 1);
}
int main()
{
cin >> n;
forn (i, 1, n)
{
cin >> x;
g[i].pb(x);
}
dfs(1);
cout << ans - 1;
}
| a.cc:29:1: error: ISO C++ forbids declaration of 'dfs' with no type [-fpermissive]
29 | dfs (int v, int h = -1)
| ^~~
a.cc: In function 'int dfs(int, int)':
a.cc:45:1: warning: control reaches end of non-void function [-Wreturn-type]
45 | }
| ^
|
s736371674 | p03680 | C++ | #include <iostream>
#include <vector>
using namespace std;
int main(){
long n;
vector<long> a[100000], res;
cin >> n;
for (long i = 0;i<n;i++) {
long ai;
cin >> ai;
a[(ai-1)].push_back(i);
}
// res.insert(res.end(), a[2].begin(), a[2].end());
res = a[1];
if (find(res.begin(), res.end(), 0)!=res.end()) {
cout << 1 << endl;
return 0;
}
res = a[1];
for (long i=0;i<=n;i++) {
vector<long> tmp;
for (auto it=res.begin();it!=res.end();it++) {
tmp.insert(tmp.end(), a[(*it)].begin(), a[(*it)].end());
}
res = tmp;
if (find(tmp.begin(), tmp.end(), 0)!=tmp.end()) {
cout << (i+2) << endl;
return 0;
}
}
cout << -1 << endl;
return 1;
}
| a.cc: In function 'int main()':
a.cc:19:11: error: no matching function for call to 'find(std::vector<long int>::iterator, std::vector<long int>::iterator, int)'
19 | if (find(res.begin(), res.end(), 0)!=res.end()) {
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/bits/locale_facets.h:48,
from /usr/include/c++/14/bits/basic_ios.h:37,
from /usr/include/c++/14/ios:46,
from /usr/include/c++/14/ostream:40,
from /usr/include/c++/14/iostream:41,
from a.cc:1:
/usr/include/c++/14/bits/streambuf_iterator.h:435:5: note: candidate: 'template<class _CharT2> typename __gnu_cxx::__enable_if<std::__is_char<_CharT2>::__value, std::istreambuf_iterator<_CharT> >::__type std::find(istreambuf_iterator<_CharT>, istreambuf_iterator<_CharT>, const _CharT2&)'
435 | find(istreambuf_iterator<_CharT> __first,
| ^~~~
/usr/include/c++/14/bits/streambuf_iterator.h:435:5: note: template argument deduction/substitution failed:
a.cc:19:11: note: '__gnu_cxx::__normal_iterator<long int*, std::vector<long int> >' is not derived from 'std::istreambuf_iterator<_CharT>'
19 | if (find(res.begin(), res.end(), 0)!=res.end()) {
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:30:13: error: no matching function for call to 'find(std::vector<long int>::iterator, std::vector<long int>::iterator, int)'
30 | if (find(tmp.begin(), tmp.end(), 0)!=tmp.end()) {
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/streambuf_iterator.h:435:5: note: candidate: 'template<class _CharT2> typename __gnu_cxx::__enable_if<std::__is_char<_CharT2>::__value, std::istreambuf_iterator<_CharT> >::__type std::find(istreambuf_iterator<_CharT>, istreambuf_iterator<_CharT>, const _CharT2&)'
435 | find(istreambuf_iterator<_CharT> __first,
| ^~~~
/usr/include/c++/14/bits/streambuf_iterator.h:435:5: note: template argument deduction/substitution failed:
a.cc:30:13: note: '__gnu_cxx::__normal_iterator<long int*, std::vector<long int> >' is not derived from 'std::istreambuf_iterator<_CharT>'
30 | if (find(tmp.begin(), tmp.end(), 0)!=tmp.end()) {
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
|
s263087394 | p03680 | C++ | #include <bits/stdc++.h>
using namespace std;
#define forn(i, s, f) for(int i = (s); i <= (f); ++i)
#define for1(i, f, s) for(int i = (f); i >= (s); --i)
#define fora(i, x) for (auto i : x)
#define show(x) cout << #x << " = " << x << " ";
#define skip continue;
#define pb push_back
#define _1 first
#define _2 second
typedef long long ll;
const int N3 = 1e3 + 5;
const int N4 = 1e4 + 5;
const int N5 = 1e5 + 5;
const int N6 = 1e6 + 5;
const int N7 = 1e7 + 5;
const int N8 = 1e8 + 5;
const int N9 = 1e9 + 5;
const int mod = N9 + 2;
int ans, n, x;
vector < int > g[N5];
dfs (int v, int h = -1)
{
++ans;
// cout << v << " ";
if (v == 2)
{
cout << ans;
exit(0);
}
if (h == 1 && v == 1)
{
cout << -1;
exit(0);
}
fora (to, g[v])
dfs(to, 1);
}
int main()
{
cin >> n;
forn (i, 1, n)
{
cin >> x;
g[x].pb(i);
}
dfs(1);
cout << ans;
}
| a.cc:29:1: error: ISO C++ forbids declaration of 'dfs' with no type [-fpermissive]
29 | dfs (int v, int h = -1)
| ^~~
a.cc: In function 'int dfs(int, int)':
a.cc:45:1: warning: control reaches end of non-void function [-Wreturn-type]
45 | }
| ^
|
s701575037 | p03680 | C++ | #include<stdio.h>
#define MAX 100000
int main()
{
int n,num=0;
int a[MAX];
int i ;
scanf("%d",&n);
for(i=1;i<=n;i++)
scanf("%d",&a[i]);
i=1;
while(1)
{
num++;
if(a[i]==2)
{
printf("%d\n",num);
break;
i=a[i];
if(num>n)
{
printf("-1\n");
break;
}}
return 0;
} | a.cc: In function 'int main()':
a.cc:27:2: error: expected '}' at end of input
27 | }
| ^
a.cc:4:1: note: to match this '{'
4 | {
| ^
|
s492884170 | p03680 | C++ | 5
3
3
4
2
4 | a.cc:1:1: error: expected unqualified-id before numeric constant
1 | 5
| ^
|
s245295424 | p03680 | Java | import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;
public class B {
public static void Main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int[] buttons = new int[n];
for(int i=0;i<n;i++){
buttons[i] = sc.nextInt();
}
sc.close();
int glowinBtn = 1;
Set<Integer> pshdBtn = new HashSet<Integer>();
do{
pshdBtn.add(glowinBtn);
glowinBtn = buttons[glowinBtn-1];
}while(!(glowinBtn==2 || pshdBtn.contains(glowinBtn)));
int result = -1;
if(glowinBtn==2){
result = pshdBtn.size();
}
System.out.print(result);
return;
}
} | Main.java:5: error: class B is public, should be declared in a file named B.java
public class B {
^
1 error
|
s267193122 | p03680 | C++ | #include <iostream>
using namespace std;
int z;
int n;
int x[100005];
int now ;
int counter = 0;
int a;
int main()
{
cin >> n;
for(int i = 0 ; i <= n - 1 ; i ++)
{
cin >> x[i];
}
now = x[0] - 1;
while(1)
{
if(x[now] == 0)
{
counter = -1;
break;
}
a = x[now] - 1;
x[now] = 0;
now = a;
if(now == 2)
{
couter --;
break;
}
counter ++;
}
cout << counter << endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:32:25: error: 'couter' was not declared in this scope; did you mean 'counter'?
32 | couter --;
| ^~~~~~
| counter
|
s169016424 | p03680 | Java | public class Main{
public static void main(String args[] ) throws Exception {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int[] array = new int[n];
boolean[] b = new boolean[n];
b[0] = true;
for (int i = 1; i < n; i++) b[i] = false;
for (int i = 0; i < n; i++) {
array[i] = sc.nextInt();
}
int count = 0;
for (int i = 0; i < n; i++) {
if (b[1] == true) break;
if (i == n - 1) {
count = -1;
break;
}
for (int j = 0; j < n; j++) {
if (b[j] == true) {
b[j] = false;
b[array[j] - 1] = true;
count++;
}
}
}
System.out.println(count);
}
}
| Main.java:3: error: cannot find symbol
Scanner sc = new Scanner(System.in);
^
symbol: class Scanner
location: class Main
Main.java:3: error: cannot find symbol
Scanner sc = new Scanner(System.in);
^
symbol: class Scanner
location: class Main
2 errors
|
s515465028 | p03680 | Java | import java.util.Scanner;
public class Maiin {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int n = scanner.nextInt();
int[] num = new int[n];
for (int i = 0; i < num.length; i++) {
num[i] = scanner.nextInt();
}
boolean[] check = new boolean[n];
int i = 0;
int count = 0;
while (!check[i]) {
//System.out.println(i);
count++;
check[i] = true;
i = num[i] - 1;
if (i == 1) {
System.out.println(count);
System.exit(0);
}
}
System.out.println("-1");
scanner.close();
}
}
| Main.java:3: error: class Maiin is public, should be declared in a file named Maiin.java
public class Maiin {
^
1 error
|
s599419302 | p03680 | Java |
import java.util.*;
import java.io.*;
public class abc065_b {
public static void main(String[] args) {
InputReader s = new InputReader(System.in);
PrintWriter out = new PrintWriter(System.out);
/*My code starts here.*/
int n = s.nextInt();
boolean arr[] = new boolean[n+1];
int inp[] = new int[n+1];
for(int i=1;i<=n;i++)
inp[i] = s.nextInt();
int flg=0,count=0;
int i=1;
while(true){
int k = inp[i];
if(arr[k]){
flg = -1;
break;
}
arr[i] = true;
count++;
if(inp[i]==2){
break;
}
i = inp[i];
}
if(flg==-1)
out.println("-1");
else
out.println(count);
/*My code ends here.*/
out.close();
}
static class Node implements Comparable<Node> {
int num, freq, idx;
public Node(int u, int v, int idx) {
this.num = u;
this.freq = v;
this.idx = idx;
}
public int compareTo(Node n) {
if (this.freq == n.freq)
return Integer.compare(this.num, n.num);
return Integer.compare(-this.freq, -n.freq);
}
}
static void preCalcComb() {
comb = new long[MAXN][MAXN];
comb[0][0] = 1;
for (int i = 1; i < MAXN; i++) {
comb[i][0] = 1;
for (int j = 1; j <= i; j++) {
comb[i][j] = (comb[i - 1][j] + comb[i - 1][j - 1]) % mod;
}
}
}
static long PowerMod(long a, long b, long m) {
long tempo;
if (b == 0)
tempo = 1;
else if (b == 1)
tempo = a;
else {
long temp = PowerMod(a, b / 2, m);
if (b % 2 == 0)
tempo = (temp * temp) % m;
else
tempo = ((temp * temp) % m) * a % m;
}
return tempo;
}
long no_of_primes(long m, long n, long k) {
long count = 0, i, j;
int primes[] = new int[(int) (n - m + 2)];
if (m == 1)
primes[0] = 1;
for (i = 2; i <= Math.sqrt(n); i++) {
j = (m / i);
j *= i;
if (j < m)
j += i;
for (; j <= n; j += i) {
if (j != i)
primes[(int) (j - m)] = 1;
}
}
for (i = 0; i <= n - m; i++)
if (primes[(int) i] == 0 && (i - 1) % k == 0)
count++;
return count;
}
static void shortestPaths(List<Edge>[] edges, int s, int[] prio, int[] pred) {
Arrays.fill(pred, -1);
Arrays.fill(prio, Integer.MAX_VALUE);
prio[s] = 0;
PriorityQueue<Long> q = new PriorityQueue<>();
q.add((long) s);
while (!q.isEmpty()) {
long cur = q.remove();
int curu = (int) cur;
if (cur >>> 32 != prio[curu])
continue;
for (Edge e : edges[curu]) {
int v = e.t;
int nprio = prio[curu] + e.cost;
if (prio[v] > nprio) {
prio[v] = nprio;
pred[v] = curu;
q.add(((long) nprio << 32) + v);
}
}
}
}
static class Edge {
int t, cost;
public Edge(int t, int cost) {
this.t = t;
this.cost = cost;
}
}
static class InputReader {
private InputStream stream;
private byte[] buf = new byte[8192];
private int curChar, snumChars;
private SpaceCharFilter filter;
public InputReader(InputStream stream) {
this.stream = stream;
}
public int snext() {
if (snumChars == -1)
throw new InputMismatchException();
if (curChar >= snumChars) {
curChar = 0;
try {
snumChars = stream.read(buf);
} catch (IOException e) {
throw new InputMismatchException();
}
if (snumChars <= 0)
return -1;
}
return buf[curChar++];
}
public int nextInt() {
int c = snext();
while (isSpaceChar(c))
c = snext();
int sgn = 1;
if (c == '-') {
sgn = -1;
c = snext();
}
int res = 0;
do {
if (c < '0' || c > '9')
throw new InputMismatchException();
res *= 10;
res += c - '0';
c = snext();
} while (!isSpaceChar(c));
return res * sgn;
}
public long nextLong() {
int c = snext();
while (isSpaceChar(c))
c = snext();
int sgn = 1;
if (c == '-') {
sgn = -1;
c = snext();
}
long res = 0;
do {
if (c < '0' || c > '9')
throw new InputMismatchException();
res *= 10;
res += c - '0';
c = snext();
} while (!isSpaceChar(c));
return res * sgn;
}
public int[] nextIntArray(int n) {
int a[] = new int[n];
for (int i = 0; i < n; i++)
a[i] = nextInt();
return a;
}
public String readString() {
int c = snext();
while (isSpaceChar(c))
c = snext();
StringBuilder res = new StringBuilder();
do {
res.appendCodePoint(c);
c = snext();
} while (!isSpaceChar(c));
return res.toString();
}
public boolean isSpaceChar(int c) {
if (filter != null)
return filter.isSpaceChar(c);
return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
}
public interface SpaceCharFilter {
public boolean isSpaceChar(int ch);
}
}
}
| Main.java:5: error: class abc065_b is public, should be declared in a file named abc065_b.java
public class abc065_b {
^
Main.java:56: error: cannot find symbol
comb = new long[MAXN][MAXN];
^
symbol: variable comb
location: class abc065_b
Main.java:56: error: cannot find symbol
comb = new long[MAXN][MAXN];
^
symbol: variable MAXN
location: class abc065_b
Main.java:56: error: cannot find symbol
comb = new long[MAXN][MAXN];
^
symbol: variable MAXN
location: class abc065_b
Main.java:57: error: cannot find symbol
comb[0][0] = 1;
^
symbol: variable comb
location: class abc065_b
Main.java:58: error: cannot find symbol
for (int i = 1; i < MAXN; i++) {
^
symbol: variable MAXN
location: class abc065_b
Main.java:59: error: cannot find symbol
comb[i][0] = 1;
^
symbol: variable comb
location: class abc065_b
Main.java:61: error: cannot find symbol
comb[i][j] = (comb[i - 1][j] + comb[i - 1][j - 1]) % mod;
^
symbol: variable comb
location: class abc065_b
Main.java:61: error: cannot find symbol
comb[i][j] = (comb[i - 1][j] + comb[i - 1][j - 1]) % mod;
^
symbol: variable comb
location: class abc065_b
Main.java:61: error: cannot find symbol
comb[i][j] = (comb[i - 1][j] + comb[i - 1][j - 1]) % mod;
^
symbol: variable comb
location: class abc065_b
Main.java:61: error: cannot find symbol
comb[i][j] = (comb[i - 1][j] + comb[i - 1][j - 1]) % mod;
^
symbol: variable mod
location: class abc065_b
11 errors
|
s177266512 | p03680 | C++ | /*
ID: 5ak0
PROG:
LANG: C++11
*/
#include <bits/stdc++.h>
#define fr first
#define sc second
#define pb push_back
#define mpr make_pair
#define long long int
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int INF = 1e9 + 7, MAXN = 1e5 + 10;
int n, a[MAXN], u[MAXN], d[MAXN];
void dfs(int v){
if (u[v] == 1)
return;
d[a[v]] = d[v] + 1;
u[v] = 1;
dfs(a[v]);
}
main(){
#ifndef SAKO
//freopen(".in", "r", stdin);
//freopen(".out", "w", stdout);
#endif // SAKO
ios_base::sync_with_stdio(0);
cin >> n;
for (int i = 1; i <= n; ++i)
cin >> a[i];
dfs(1);
cout << (u[2] == 0 ? -1 : d[2]);
return 0;
}
| a.cc:12:19: error: two or more data types in declaration of 'll'
12 | #define long long int
| ^~~
a.cc:16:9: note: in expansion of macro 'long'
16 | typedef long long ll;
| ^~~~
a.cc:30:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
30 | main(){
| ^~~~
|
s096865361 | p03680 | C++ | #define N 100000
int n;
int a[N];
int color[N + 1];
int main() {
cin >> n;
for ( int i = 0; i <= N; i++ ) {
a[i] = -1;
}
for ( int i = 1; i <= n; i++ ) {
cin >> a[i];
}
for ( int i = 1, j = 1; i < n; i++ ) {
if ( a[j] == -1 ) {
cout << -1 << endl;
return 0;
} else if ( a[j] == 2 ){
cout << i << endl;
return 0;
} else {
j = a[j];
}
}
cout << -1 << endl;
return 0;
} | a.cc: In function 'int main()':
a.cc:8:5: error: 'cin' was not declared in this scope
8 | cin >> n;
| ^~~
a.cc:19:13: error: 'cout' was not declared in this scope
19 | cout << -1 << endl;
| ^~~~
a.cc:19:27: error: 'endl' was not declared in this scope
19 | cout << -1 << endl;
| ^~~~
a.cc:22:13: error: 'cout' was not declared in this scope
22 | cout << i << endl;
| ^~~~
a.cc:22:26: error: 'endl' was not declared in this scope
22 | cout << i << endl;
| ^~~~
a.cc:29:5: error: 'cout' was not declared in this scope
29 | cout << -1 << endl;
| ^~~~
a.cc:29:19: error: 'endl' was not declared in this scope
29 | cout << -1 << endl;
| ^~~~
|
s138717178 | p03681 | C++ | #include <algorithm>
#include <cassert>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
using namespace std;
typedef long long ll;
#define rep(i, n) for(ll i = 0; i < n; i++)
#define REP(i, n) for(ll i = 1; i < n + 1; i++)
#define PI 3.14159265359
#define EPS 0.0000000001
#define MOD 1000000007
//cout << std::fixed << std::setprecision(15) << y << endl;
// 階乗mod
ll fmod(ll n){
ll ans = 1;
for(ll i = 1; i <= n; i++){
ans *= i;
ans %= MOD;
}
return ans;
}
int main(){
ll N, M;
cin >> N >> M;
ll
if(N == M){
cout << (2 * fmod(N) % MOD) * fmod(M) % MOD << endl;
}else if(abs(N - M) == 1){
if(N < M){
swap(N, M);
}
cout << fmod(N) * fmod(M) % MOD << endl;
}else{
cout << 0 << endl;
}
return 0;
} | a.cc: In function 'int main()':
a.cc:41:5: error: expected unqualified-id before 'if'
41 | if(N == M){
| ^~
a.cc:43:6: error: 'else' without a previous 'if'
43 | }else if(abs(N - M) == 1){
| ^~~~
|
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.