output stringlengths 52 181k | instruction stringlengths 296 182k |
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#include <bits/stdc++.h>
using namespace std;
template <typename _T>
inline void read(_T &f) {
f = 0;
_T fu = 1;
char c = getchar();
while (c < '0' || c > '9') {
if (c == '-') {
fu = -1;
}
c = getchar();
}
while (c >= '0' && c <= '9') {
f = (f << 3) + (f << 1) + (c & 15);
c = getch... | ### Prompt
Please formulate a Cpp solution to the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you nee... |
#include <bits/stdc++.h>
using namespace std;
const int N = 1005;
int n;
int p[N][N];
bool f[N];
double d[N], K[N], B[N];
int main() {
scanf("%d", &n);
for (int i = 1; i <= n; ++i)
for (int j = 1; j <= n; ++j) {
scanf("%d", &p[i][j]);
if (i == j) p[i][j];
}
for (int i = 1; i <= n; ++i) {
d... | ### Prompt
Generate a cpp solution to the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you need to get... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 1010;
int a[maxn][maxn], vis[maxn];
int N;
double f[maxn], prob[maxn], coef[maxn];
int main() {
cin >> N;
for (int i = 1; i <= N; i++)
for (int j = 1; j <= N; j++) scanf("%d", &a[i][j]);
for (int i = 1; i <= N; i++) f[i] = 1e9, prob[i] = 1, coef[i... | ### Prompt
Please formulate a Cpp solution to the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you nee... |
#include <bits/stdc++.h>
using namespace std;
int n, vis[1005];
double p[1005][1005], E[1005], dis[1005], P[1005];
int main() {
scanf("%d", &n);
for (int i = 1; i <= n; i++)
for (int j = 1, x; j <= n; j++)
scanf("%d", &x), p[i][j] = (double)x / 100.0;
dis[n] = 0;
vis[n] = 1;
for (int i = 1; i < n; i... | ### Prompt
Create a solution in CPP for the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you need to g... |
#include <bits/stdc++.h>
using namespace std;
constexpr int inf32 = 0x3f3f3f3f;
constexpr long long inf64 = 0x3f3f3f3f3f3f3f3f;
inline int read() {
int first = 0, w = 1;
char ch = getchar();
while (ch < '0' || ch > '9') {
if (ch == '-') w = -1;
ch = getchar();
}
while ('0' <= ch && ch <= '9')
firs... | ### Prompt
Create a solution in cpp for the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you need to g... |
#include <bits/stdc++.h>
using namespace std;
const int N = 1003;
int n, x, vis[N];
double P[N], dp[N], p[N][N];
inline void in(register int &x) {
int f = 0;
x = 0;
char c = getchar();
while (c < '0' || c > '9') f |= c == '-', c = getchar();
while (c >= '0' && c <= '9')
x = (x << 1) + (x << 3) + (c ^ 48),... | ### Prompt
Please create a solution in Cpp to the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you nee... |
#include <bits/stdc++.h>
using namespace std;
const int N = 1e3 + 5;
bool vis[N];
int n;
double f[N];
double p[N][N], pro[N];
int main() {
scanf("%d", &n);
for (int i = 1; i <= n; i++) {
for (int j = 1, tmp; j <= n; j++) {
scanf("%d", &tmp);
p[i][j] = 1.0 * tmp / 100.0;
}
}
if (n == 1) {
... | ### Prompt
Create a solution in Cpp for the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you need to g... |
#include <bits/stdc++.h>
using namespace std;
const int inf = 1e9 + 100;
const double eps = 1e-9;
const double pi = 4 * atan(1.0);
const int N = 1010;
bool used[N];
double dp[N], sum[N], prob[N];
double p[N][N];
int main() {
int n;
cin >> n;
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
sc... | ### Prompt
Develop a solution in CPP to the problem described below:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you nee... |
#include <bits/stdc++.h>
using namespace std;
int const N = 1001;
bool vis[N];
double E[N], E2[N], P[N], A[N][N];
int main() {
int n;
scanf("%d", &n);
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
scanf("%lf", &A[i][j]);
A[i][j] /= 100;
}
}
int cur = n - 1;
vis[n - 1] = tru... | ### Prompt
Please provide a cpp coded solution to the problem described below:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 a... |
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target( \
"avx,avx2,fma,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
using namespace std;
int MOD = 1e9 + 7;
vector<vector<double> > p;
vector<int> used;
int n;
vector<double> ans;
vector<double> sm;
vector<double> pr;
int main() {
io... | ### Prompt
Your task is to create a Cpp solution to the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and y... |
#include <bits/stdc++.h>
using namespace std;
const int N = 1100;
int n;
bool v[N];
double f[N][N], prod[N], g[N];
int main() {
scanf("%d", &n);
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= n; j++) {
scanf("%lf", &f[i][j]);
f[i][j] /= 100.0;
}
}
if (n == 1) return puts("0") & 0;
for... | ### Prompt
Develop a solution in cpp to the problem described below:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you nee... |
#include <bits/stdc++.h>
int n, m;
double p[1005][1005];
double dist[1005];
double qhy[1005], zyg[1005];
bool flag[1005];
using namespace std;
void standing_by() {
int i, j;
scanf("%d", &n);
for (i = 1; i <= n; i++)
for (j = 1; j <= n; j++) {
scanf("%lf", &p[i][j]);
p[i][j] /= 100;
}
for (i ... | ### Prompt
In cpp, your task is to solve the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you need to ... |
#include <bits/stdc++.h>
using namespace std;
inline int max(int a, int b) { return a < b ? b : a; }
inline int min(int a, int b) { return a > b ? b : a; }
inline long long max(long long a, long long b) { return a < b ? b : a; }
inline long long min(long long a, long long b) { return a > b ? b : a; }
const int mod = 1e... | ### Prompt
Your challenge is to write a cpp solution to the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 a... |
#include <bits/stdc++.h>
const int N = 1054;
int n;
bool ok[N];
double p[N][N], f[N], acc[N], rem[N];
inline int find() {
int i, v = n;
for (i = 0; i < n; ++i)
if (!ok[i] && f[i] < f[v]) v = i;
return v;
}
int main() {
int i, j, x;
scanf("%d", &n);
for (i = 0; i < n; ++i)
for (j = 0; j < n; ++j) sca... | ### Prompt
Construct a CPP code solution to the problem outlined:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you need t... |
#include <bits/stdc++.h>
inline int read() {
int x = 0;
char c = getchar();
while (!isdigit(c)) c = getchar();
while (isdigit(c)) x = (x << 3) + (x << 1) + c - 48, c = getchar();
return x;
}
const int N = 1e3 + 7;
int n;
double p[N][N], E[N], f[N];
bool vis[N];
int main() {
n = read();
if (n == 1) return ... | ### Prompt
Please create a solution in CPP to the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you nee... |
#include <bits/stdc++.h>
using namespace std;
const long long mod = 1000000007;
long long powmod(long long a, long long b) {
long long res = 1;
a %= mod;
for (; b; b >>= 1) {
if (b & 1) res = res * a % mod;
a = a * a % mod;
}
return res;
}
const int N = 1010;
int n, p[N][N], vis[N];
long double E[N], ... | ### Prompt
Please provide a cpp coded solution to the problem described below:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 a... |
#include <bits/stdc++.h>
using namespace std;
const int N = 1010;
int n, vis[N];
double p[N][N], f[N], a[N], b[N], c[N];
int main() {
scanf("%d", &n);
for (int i = 1; i <= n; i++)
for (int j = 1; j <= n; j++) {
int x;
scanf("%d", &x);
p[i][j] = x / 100.0;
}
vis[n] = 1;
for (int i = 1; ... | ### Prompt
Please formulate a CPP solution to the following problem:
The scientists have recently discovered wormholes — objects in space that allow to travel very long distances between galaxies and star systems.
The scientists know that there are n galaxies within reach. You are in the galaxy number 1 and you nee... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 5;
int n, S, T, a[maxn], b[maxn], cir[maxn], cnt;
int fa[maxn], dep[maxn], head[maxn], to[maxn << 1], nxt[maxn << 1], tot;
bool inc[maxn], vis[maxn];
inline bool judge(int x) { return a[x] == b[x]; }
inline void add_edge(int x, int y) {
to[++tot] = ... | ### Prompt
Please provide a CPP coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
vector<int> v[200010], circle;
int fa[200010], dep[200010], a[200010], b[200010], n, rt, vs, vt, h1, h2;
bool vis[200010], bo[200010];
inline int rd() {
int x = 0;
char ch = getchar();
for (; ch < '0' || ch > '9'; ch = getchar())
;
for (; ch >= '0' && ch <= '9';... | ### Prompt
Create a solution in cpp for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
bool debug = 0;
int n, m, k;
int dx[4] = {0, 1, 0, -1}, dy[4] = {1, 0, -1, 0};
string direc = "RDLU";
long long ln, lk, lm;
int a[200105], b[200105], pa[200105], pb[200105], ta[200105], Cnt, deg[200105];
vector<int> mp[200105], Q;
void et() {
puts("-1");
exit(0);
}
bool... | ### Prompt
Please create a solution in cpp to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 200005;
vector<int> lk[maxn];
int fa[maxn], dep[maxn], a[maxn], b[maxn], n;
void dfs(int now, int pre) {
fa[now] = pre;
dep[now] = dep[pre] + 1;
for (auto p : lk[now])
if (p != pre) dfs(p, now);
}
vector<int> cir;
int rt, lp, lq;
bool find_circle(... | ### Prompt
Construct a CPP code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
long long gcd(long long a, long long b) { return b == 0 ? a : gcd(b, a % b); }
const int MAXN = 200000;
const int MAXM = MAXN - 1;
typedef struct E {
int u, v;
} E;
bool operator<(const E &a, const E &b) {
if (a.u != b.u) return a.u < b.u;
return a.v < b.v;
}
int n;
i... | ### Prompt
Your task is to create a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
inline long long read() {
long long x = 0, f = 1;
char c = getchar();
while (!isdigit(c)) {
if (c == '-') f = -1;
c = getchar();
}
while (isdigit(c)) {
x = (x << 3) + (x << 1) + (c ^ 48);
c = getchar();
}
return f == 1 ? x : ~x + 1;
}
void Fail... | ### Prompt
Please formulate a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const long long linf = 1e18 + 7;
const int maxn = 2e5 + 7;
struct Edge {
int nxt, to;
} G[maxn << 1];
int n, S, T, target, hG[maxn], bG = 0, a[maxn], b[maxn], dep[maxn], fa[maxn],
cnt = 0, num = 0, top = 0;
int rk[maxn], val[maxn], val2[maxn... | ### Prompt
Your task is to create a CPP solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
void gg() {
printf("-1\n");
exit(0);
return;
}
int n;
struct Edge {
int v, nxt;
} e[400010];
int tot;
int first[200010];
void build(int u, int v) {
e[++tot] = (Edge){v, first[u]};
first[u] = tot;
return;
}
int a[200010], b[200010];
int fa[200010];
int dis[2000... | ### Prompt
Develop a solution in cpp to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
template <typename T>
inline bool chkmin(T &a, const T &b) {
return a > b ? a = b, 1 : 0;
}
template <typename T>
inline bool chkmax(T &a, const T &b) {
return a < b ? a = b, 1 : 0;
}
const int oo = 0x3f3f3f3f;
const int maxn = 200000;
struct edge {
int id, nxt;
edg... | ### Prompt
Construct a Cpp code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
long long read() {
long long x = 0, f = 0;
char ch = getchar();
while (!isdigit(ch)) f = ch == '-', ch = getchar();
while (isdigit(ch)) x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar();
return f ? -x : x;
}
const int N = 200005;
int n, s0, t0, s, t, tp;
vector<... | ### Prompt
Construct a Cpp code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
template <typename T>
inline bool chkmin(T &a, const T &b) {
return a > b ? a = b, 1 : 0;
}
template <typename T>
inline bool chkmax(T &a, const T &b) {
return a < b ? a = b, 1 : 0;
}
const int oo = 0x3f3f3f3f;
const int maxn = 200000;
struct edge {
int id, nxt;
edg... | ### Prompt
Your challenge is to write a CPP solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
long long read() {
long long x = 0, f = 0;
char ch = getchar();
while (!isdigit(ch)) f = ch == '-', ch = getchar();
while (isdigit(ch)) x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar();
return f ? -x : x;
}
const int N = 200005;
int n, s0, t0, s, t, tp;
vector<... | ### Prompt
Your challenge is to write a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
void fail() { puts("-1"), exit(0); }
int O_A[200011], A_B[200011], A_O[200011], B_A[200011];
int tot, fi[200011];
struct edge {
int nx, to;
} e[200011 * 4];
void ps(int x, int y) {
e[++tot] = (edge){fi[x], y};
fi[x] = tot;
}
int ft[200011], dep[200011];
void dfs_base(... | ### Prompt
Your task is to create a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
int read();
int n;
int a[200005], b[200005], c[200005], bk[200005];
int hd[200005], nx[400005], to[400005], cnt;
void add(int f, int t) { nx[++cnt] = hd[f], hd[f] = cnt, to[cnt] = t; }
int fa[200005], dep[200005];
void dfs1(int u) {
for (int i = hd[u], v; i; i = nx[i])
... | ### Prompt
Create a solution in CPP for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
long long gcd(long long a, long long b) { return b == 0 ? a : gcd(b, a % b); }
const int MAXN = 200000;
const int MAXM = MAXN - 1;
typedef struct E {
int u, v;
} E;
bool operator<(const E &a, const E &b) {
if (a.u != b.u) return a.u < b.u;
return a.v < b.v;
}
int n;
i... | ### Prompt
Please create a solution in cpp to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
struct Edge {
int to, next;
} edge[N << 1];
int n, start, finish, tot, rt, st1, end1;
int st[N], a[N], b[N], depth[N], fa[N], vis[N];
long long ans;
vector<int> loop;
void link(int u, int v) {
edge[++tot].to = v;
edge[tot].next = st[u];
st[u] ... | ### Prompt
Construct a CPP code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
int n, m, i, j, a[200005], b[200005], c[200005], d[200005], pa[200005],
pb[200005], vis[200005], fa[200005], dep[200005], dfn[200005], ti, p, p1,
p2, f[200005], tp;
bool incir[200005];
vector<int> bi[200005], nd[200005], ed;
long long ans, c1, c2;
vector<int> cir, t... | ### Prompt
Generate a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any other... |
#include <bits/stdc++.h>
using namespace std;
void no() {
printf("-1");
exit(0);
}
struct bian {
int nxt, to;
} bi[400040];
int n, a[200020], b[200020], head[200020], num, c[200020], f[200020];
inline void add(int from, int to) {
bi[++num] = bian{head[from], to};
head[from] = num;
}
int st[200020], tp;
bool v... | ### Prompt
Construct a Cpp code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 200005;
vector<int> sosedi[maxn];
int parent[maxn], shagi[maxn], start[maxn], finish[maxn], n;
bool visit_vertex[maxn];
void dfs(int v, int predok) {
parent[v] = predok;
shagi[v] = shagi[predok] + 1;
for (auto daleko1 : sosedi[v])
if (daleko1 != p... | ### Prompt
Create a solution in CPP for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
const long long INF = 1LL << 60;
long long powmod(long long a, long long b) {
long long res = 1;
a %= 1000000007;
for (; b; b >>= 1) {
if (b & 1) res = res * a % 1000000007;
a = a * a % 1000000007;
}
return res;
}
template <typename T>
inline bool chkmin(T... | ### Prompt
Your challenge is to write a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
inline int read() {
char c;
int x;
for (c = getchar(); !isdigit(c); c = getchar())
;
for (x = 0; isdigit(c); c = getchar()) {
x = x * 10 + c - '0';
}
return x;
}
const int N = 1e6 + 5;
int n, k, s, t, rs, rt, len, ans0, a[N], b[N], ft[N], dis[N], dit[N], deg[N];
long long an... | ### Prompt
Your task is to create a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5 + 5;
const long long INF = 1e18;
template <typename T>
void chkmax(T &x, T y) {
x = max(x, y);
}
template <typename T>
void chkmin(T &x, T y) {
x = min(x, y);
}
template <typename T>
void read(T &x) {
x = 0;
int f = 1;
char c = getchar();
fo... | ### Prompt
Create a solution in cpp for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
int read() {
int x = 0, f = 1;
char ch = getchar();
while (ch - '0' < 0 || ch - '0' > 9) {
if (ch == '-') f = -1;
ch = getchar();
}
while (ch - '0' >= 0 && ch - '0' <= 9) {
x = x * 10 + ch - '0';
ch = getchar();
}
return x * f;
}
int n;
int a[2... | ### Prompt
Your task is to create a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
void gg() {
printf("-1\n");
exit(0);
return;
}
int n;
struct Edge {
int v, nxt;
} e[400010];
int tot;
int first[200010];
void build(int u, int v) {
e[++tot] = (Edge){v, first[u]};
first[u] = tot;
return;
}
int a[200010], b[200010];
int fa[200010];
int dis[2000... | ### Prompt
Construct a Cpp code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
int n, S, T, a[200005], b[200005], fa[200005], dep[200005];
bool fl, vs[200005];
vector<int> e[200005];
int U, V, U1, cnt, ps, st1[200005], st2[200005], st3[200005], st[2][200005];
long long ans1, ans2;
void dfs(int u, int f) {
fa[u] = f;
if (f) dep[u] = dep[f] + 1;
f... | ### Prompt
Please formulate a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
int v1[200500], v2[200500], v3[200500], s, t, head[200500], cnt, is[200500],
fr[200500], ct, st[200500], fg, s1, s2, s3, s4, s5, a, b, st2[200500], ct2,
vl[200500], c1, ins[200500], n, fr2[200500], is2[200500], d1, is3[200500];
struct edge {
int t, next;
} ed[2005... | ### Prompt
In cpp, your task is to solve the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ot... |
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
int n, ca[N], cb[N], u[N], v[N], i, j, z, S, T, deg[N], id[N], X;
long long ans;
vector<int> e[N], ep;
multiset<int> SS;
bool b1[N];
int dad[N], dep[N];
void dfs(int x, int fa) {
dep[x] = dep[fa] + 1;
dad[x] = fa;
for (int y : e[x])
if (y !=... | ### Prompt
In Cpp, your task is to solve the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ot... |
#include <bits/stdc++.h>
int head[262144], last[524288], to[524288], cnt = 0;
void add(int u, int v) {
cnt++;
last[cnt] = head[u];
head[u] = cnt;
to[cnt] = v;
}
int d[262144], fa[262144], d2[262144], fa2[262144];
void dfs(int u, int f) {
d[u] = d[f] + 1;
fa[u] = f;
for (int i = head[u]; i; i = last[i]) {
... | ### Prompt
In CPP, your task is to solve the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ot... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 200005;
vector<int> lk[maxn];
int fa[maxn], dep[maxn], a[maxn], b[maxn], n;
void dfs(int now, int pre) {
fa[now] = pre;
dep[now] = dep[pre] + 1;
for (auto p : lk[now])
if (p != pre) dfs(p, now);
}
vector<int> cir;
int rt, lp, lq;
bool find_circle(... | ### Prompt
Your challenge is to write a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 7;
long long val;
bool vas, fl[N], ft[N], gt[N], qt[N];
int n, p1[N], p2[N], p3[N], og[N], vac[N], st[N << 2];
vector<int> v[N];
inline int read() {
int num = 0;
char g = getchar();
while (g < 48 || 57 < g) g = getchar();
while (47 < g && g < 58)... | ### Prompt
Develop a solution in Cpp to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
int fr[200010], ne[400010], v[400010], bs = 0;
void addb(int a, int b) {
v[bs] = b;
ne[bs] = fr[a];
fr[a] = bs++;
}
int st[200010], en[200010], fa[200010], sw[200010], ew[200010], sd[200010];
void dfs(int u, int f) {
fa[u] = f;
if (f)
sd[u] = sd[f] + 1;
else
sd[u] = 0;
for... | ### Prompt
Create a solution in Cpp for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 10;
int n, a[N], b[N], s, t, deg[N];
vector<int> e1[N], f, g, Ap, Bp;
int dfs1(int x, int fa) {
f.push_back(x);
if (x == t) return 1;
int siz = e1[x].size();
for (int i = 0; i < siz; i++) {
int y = e1[x][i];
if (y != fa) {
int check... | ### Prompt
Your challenge is to write a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
const int N = 200005;
int n, s, t, dep[N], fa[N], a[N], ta[N], b[N], p, u, v;
vector<int> g[N], av, bv;
bool mark[N];
void dfs(int u) {
for (int v : g[u])
if (v != fa[u]) fa[v] = u, dep[v] = dep[u] + 1, dfs(v);
}
void get(int u) {
if (u != p) av.push_back(ta[u]), bv... | ### Prompt
In CPP, your task is to solve the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ot... |
#include <bits/stdc++.h>
using namespace std;
const int INF = (int)1e9 + 100;
const long long lINF = 1e18;
const double EPS = 1e-12;
int myrand() { return rand(); }
long long rdtsc() {
long long ans;
asm("rdtsc" : "=A"(ans));
return ans;
}
int rnd(int x) { return myrand() % x; }
const int maxn = (int)2e5 + 100;
i... | ### Prompt
Your task is to create a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
inline int read() {
int x = 0, f = 1;
char ch = getchar();
while (ch < '0' || ch > '9') {
if (ch == '-') f = -1;
ch = getchar();
}
while (ch >= '0' && ch <= '9') {
x = (x << 3) + (x << 1) + (ch ^ 48);
ch = getchar();
}
return x * f;
}
int n;
in... | ### Prompt
Develop a solution in CPP to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
int n, ca[N], cb[N], u[N], v[N], i, j, z, S, T, deg[N], id[N], X;
long long ans;
vector<int> e[N], ep;
multiset<int> SS;
bool b1[N];
int dad[N], dep[N];
void dfs(int x, int fa) {
dep[x] = dep[fa] + 1;
dad[x] = fa;
for (int y : e[x])
if (y !=... | ### Prompt
Develop a solution in cpp to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 4e5 + 5;
vector<int> adj[maxn];
int a[maxn], b[maxn], n, par[maxn], a0, b0;
long long ans;
int dep[maxn], id[maxn], idx;
vector<pair<int, int> > chain;
bool vis[maxn];
void dfs(int u) {
id[++idx] = u;
for (auto v : adj[u])
if (v != par[u]) {
p... | ### Prompt
Develop a solution in CPP to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
const int Maxn = 200000;
void output_no_ans() {
puts("-1");
exit(0);
}
int n;
int head[Maxn + 5], arrive[Maxn << 1 | 5], nxt[Maxn << 1 | 5], tot;
void add_edge(int from, int to) {
arrive[++tot] = to;
nxt[tot] = head[from];
head[from] = tot;
}
int a[Maxn + 5], b[Maxn + 5];
int fa[Maxn ... | ### Prompt
Please formulate a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
int n, a[N], b[N], s, t, v[N], d[N], p;
vector<int> to[N], g, h, A, B;
pair<int, int> key(N, 0);
int dfs1(int x, int pre) {
g.push_back(x);
if (x == t) return 1;
for (auto y : to[x])
if (y != pre && dfs1(y, x)) return 1;
g.pop_back();
re... | ### Prompt
Construct a CPP code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
inline char gc() {
static char buf[100000], *p1 = buf, *p2 = buf;
return p1 == p2 && (p2 = (p1 = buf) + fread(buf, 1, 100000, stdin), p1 == p2)
? EOF
: *p1++;
}
inline int read() {
char c = getchar();
int tot = 1;
while ((c < '0' || c > '... | ### Prompt
Create a solution in cpp for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
int read();
int n;
int a[200005], b[200005], c[200005], bk[200005];
int hd[200005], nx[400005], to[400005], cnt;
void add(int f, int t) { nx[++cnt] = hd[f], hd[f] = cnt, to[cnt] = t; }
int fa[200005], dep[200005];
void dfs1(int u) {
for (int i = hd[u], v; i; i = nx[i])
... | ### Prompt
Your challenge is to write a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
int n, A[200001], B[200001], head[200001], nxt[400001], b[400001], k, S, T,
pre[200001], next[200001];
int num[200001], top, tem1[200001], tem2[200001];
void push(int s, int t) {
nxt[++k] = head[s];
head[s] = k;
b[k] = t;
}
int dfs(int x, int f, int dis = 0) {
if (x == T) return dis... | ### Prompt
Create a solution in cpp for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
int read();
int n;
int a[200005], b[200005], c[200005], bk[200005];
int hd[200005], nx[400005], to[400005], cnt;
void add(int f, int t) { nx[++cnt] = hd[f], hd[f] = cnt, to[cnt] = t; }
int fa[200005], dep[200005];
void dfs1(int u) {
for (int i = hd[u], v; i; i = nx[i])
... | ### Prompt
Please create a solution in cpp to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
int v1[200500], v2[200500], v3[200500], s, t, head[200500], cnt, is[200500],
fr[200500], ct, st[200500], fg, s1, s2, s3, s4, s5, a, b, st2[200500], ct2,
vl[200500], c1, ins[200500], n, fr2[200500], is2[200500], d1, is3[200500];
struct edge {
int t, next;
} ed[2005... | ### Prompt
Please formulate a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
struct Edge {
int to;
int nxt;
} e[400005];
int n, m, x, edgenum, head[200005], pa[200005], pa2[200005], a[200005],
b[200005], d[200005], r1, r2;
int st[200005], top, sta[200005], top2, tmp[200005], top3;
bool flag[200005];
void add(int u, int v) {
e[++edgenum].to... | ### Prompt
Construct a CPP code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
const int MaxN = 200010, MaxM = 400010;
const long long inf = 1ll << 60;
class Graph {
public:
int en[MaxN], next[MaxM], to[MaxM], tot;
void add_edge(int x, int y) {
next[++tot] = en[x];
en[x] = tot;
to[tot] = y;
}
} G;
int n, a[MaxN], b[MaxN];
int edge_u... | ### Prompt
In CPP, your task is to solve the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ot... |
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 10;
int n, a[N], b[N], s, t, deg[N];
vector<int> e1[N], f, g, Ap, Bp;
int dfs1(int x, int fa) {
f.push_back(x);
if (x == t) return 1;
int siz = e1[x].size();
for (int i = 0; i < siz; i++) {
int y = e1[x][i];
if (y != fa) {
int check... | ### Prompt
Construct a Cpp code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
const int Maxn = 200005;
int n, s, t, p, cnt, a[Maxn], b[Maxn], deg[Maxn], head[Maxn];
vector<int> A, B, Ve1, Ve, spec;
pair<int, int> mini = make_pair(0x3f3f3f3f, 0);
bool vis[Maxn];
struct edg {
int nxt, to;
} edge[2 * Maxn];
void add(int x, int y) {
edge[++cnt] = (ed... | ### Prompt
Please provide a Cpp coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
inline int read() {
int x = 0, c = getchar(), f = 0;
for (; c > '9' || c < '0'; f = c == '-', c = getchar())
;
for (; c >= '0' && c <= '9'; x = (x << 1) + (x << 3) + c - '0', c = getchar())
;
return f ? -x : x;
}
inline void write(int x) {
if (x < 0) putch... | ### Prompt
Develop a solution in CPP to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int N = 200005;
struct edge {
int to, next;
} e[N * 2];
int head[N], tot, n;
int a[N], b[N], aa[N];
int dfn[N], ed[N], dep[N];
int fa[N][19], A[N], B[N];
int pos1, pos2, cnt;
void add(int x, int y) {
e[++tot] = (edge){y, head[x]};
head[x] = tot;
}
bool dfs(int x... | ### Prompt
Please formulate a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
const int MN = 200005;
int N, su, tu, A[MN], B[MN];
std::vector<int> G[MN];
int stk[MN], top;
int faz[MN], dep[MN], sv[MN];
void DFS0(int u, int fz) {
dep[u] = dep[faz[u] = fz] + 1;
for (auto v : G[u])
if (v != fz) DFS0(v, u);
}
int DFSD(int u, int fz, int d, int t, int x) {
if (u != ... | ### Prompt
Please provide a Cpp coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 200005;
vector<int> sosedi[maxn];
int parent[maxn], shagi[maxn], start[maxn], finish[maxn], n;
void dfs(int v, int predok) {
parent[v] = predok;
shagi[v] = shagi[predok] + 1;
for (auto p : sosedi[v])
if (p != predok) dfs(p, v);
}
vector<int> circl... | ### Prompt
Your challenge is to write a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
inline int read() {
int n = 0;
char c;
for (c = getchar(); c < '0' || c > '9'; c = getchar())
;
for (; c >= '0' && c <= '9'; c = getchar()) n = n * 10 + c - 48;
return n;
}
const int maxn = 2e5 + 5;
int t, n, i, j, a[maxn], b[maxn], S, T, f[maxn], d[maxn];
int... | ### Prompt
Construct a CPP code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
bool bo[200010];
int la[200010], a[200010], b[200010], pa[200010], pb[200010], x, y, hd[200010],
cnt, n, t[2][200010], tn[2], sa, sb, c[200010], cn, d[200010], q[200010], l,
r, C[200010], Cn;
struct node {
int to, next;
} e[400010];
long long ans;
void addedge(int... | ### Prompt
Please formulate a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 200000 + 10;
const long long inf = 1000000000000000;
int a[maxn], b[maxn], c[maxn], cc[maxn], e[maxn], sta[maxn];
int h[maxn], go[maxn * 2], nxt[maxn * 2], fa[maxn], d[maxn];
int i, j, k, l, r, t, n, m, u, v, w, z, tot, top, S, T, ansu, ansv;
long long num,... | ### Prompt
Please formulate a CPP solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 200005;
vector<int> sosedi[maxn];
int parent[maxn], shagi[maxn], start[maxn], finish[maxn], n;
void dfs(int v, int predok) {
parent[v] = predok;
shagi[v] = shagi[predok] + 1;
for (auto p : sosedi[v])
if (p != predok) dfs(p, v);
}
vector<int> circl... | ### Prompt
Develop a solution in cpp to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int N = 200100;
vector<int> g[N];
int a[N], b[N], p[N], q[N], n, s, t, ans_u, ans_v, cnt;
void gofail() {
cout << -1 << '\n';
exit(0);
}
int chk(int* a, int* b, int n) {
for (int i = 1; i <= n; ++i)
if (b[i] == a[1]) {
for (int j = 0; j < n; ++j)
... | ### Prompt
Your challenge is to write a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
vector<int> v[200010], circle;
int fa[200010], dep[200010], a[200010], b[200010], n, rt, vs, vt, h1, h2;
bool vis[200010], bo[200010];
inline int rd() {
int x = 0;
char ch = getchar();
for (; ch < '0' || ch > '9'; ch = getchar())
;
for (; ch >= '0' && ch <= '9';... | ### Prompt
Create a solution in Cpp for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
namespace io {
const int SI = 1 << 21 | 1;
char IB[SI], *IS, *IT, OB[SI], *OS = OB, *OT = OS + SI - 1, c, ch[100];
int f, t;
inline void flush() { fwrite(OB, 1, OS - OB, stdout), OS = OB; }
inline void pc(char x) {
*OS++ = x;
if (OS == OT) flush();
}
template <class I>
... | ### Prompt
Create a solution in CPP for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
void gg() {
printf("-1\n");
exit(0);
return;
}
int n;
struct Edge {
int v, nxt;
} e[400010];
int tot;
int first[200010];
void build(int u, int v) {
e[++tot] = (Edge){v, first[u]};
first[u] = tot;
return;
}
int a[200010], b[200010];
int fa[200010];
int dis[2000... | ### Prompt
Develop a solution in cpp to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
int fx, vis[200002], c1[200002], c2[200002], c3[200002], c4[200002], t1, t2, t3,
t4, xi, yi, pos[4], et = 1, e[200002], cd[200002 << 1], nt[200002 << 1],
a[200002], b[200002], fa[200002], d[200002], n, wt,
ss[19];
char fl[... | ### Prompt
Generate a cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any other... |
#include <bits/stdc++.h>
using namespace std;
inline void read(int &x) {
int v = 0, f = 1;
char c = getchar();
while (!isdigit(c) && c != '-') c = getchar();
if (c == '-')
f = -1;
else
v = (c & 15);
while (isdigit(c = getchar())) v = (v << 1) + (v << 3) + (c & 15);
x = v * f;
}
inline void read(lo... | ### Prompt
Your task is to create a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
const long long N = 2e5 + 7;
const long long INF = 1e9 + 7;
long long a[N], b[N], c[N], fc[N], pos[N], fa[N], dep[N], sz[N], dg[N], id[N],
p[N], bp[N], cp[N];
bool g[N];
long long n, r1, r2, num = 0;
struct edge {
long long v, next;
} e[N * 2];
void add(long long x, l... | ### Prompt
Create a solution in CPP for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
int v1[200500], v2[200500], v3[200500], s, t, head[200500], cnt, is[200500],
fr[200500], ct, st[200500], fg, s1, s2, s3, s4, s5, a, b, st2[200500], ct2,
vl[200500], c1, ins[200500], n, fr2[200500], is2[200500], d1, is3[200500];
struct edge {
int t, next;
} ed[2005... | ### Prompt
Construct a CPP code solution to the problem outlined:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 7;
int n, s, t, p, x, y, last[maxn], a[maxn], b[maxn], r[maxn], d[maxn];
vector<int> g, h, A, B;
pair<int, int> P = {maxn, 0};
struct Edge {
int v, nxt;
} e[2 * maxn];
int read() {
int x = 0;
char c = getchar();
while (c < '0' || c > '9') c = ... | ### Prompt
Your task is to create a CPP solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
int n, S, T, a[200050], b[200050], anc[200050], dep[200050], head[200050];
bool in[200050];
bool mark[200050];
vector<int> v;
struct edge {
int to, nex;
edge(int to = 0, int nex = 0) : to(to), nex(nex) {}
};
vector<edge> G;
void addedge(int u, int v) {
G.push_back(edg... | ### Prompt
Please provide a cpp coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
const int N = 4e5 + 10;
int w[N], ne[N], la[N];
int a[N], b[N], r, n, t, sw[N], fa[N], q, s1[N], dep[N], nx[N], s2[N];
void link(int x, int y) {
w[++t] = y;
ne[t] = la[x];
la[x] = t;
}
void dfs(int x) {
for (int y = la[x]; y; y = ne[y]) {
int z = w[y];
if (z... | ### Prompt
Your task is to create a CPP solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island ... |
#include <bits/stdc++.h>
using namespace std;
struct edge {
int v, nxt;
} e[500005];
int n, k, a[200005], b[200005], h[200005], t, rt, d[200005], f[200005], ct, fl;
int st[200005], tp, q[200005], qt, dis[200005], vis[200005], srt;
void add(int u, int v) {
e[++t].v = v;
e[t].nxt = h[u];
h[u] = t;
}
void dfs1(int... | ### Prompt
Please create a solution in Cpp to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
inline long long min(long long x, long long y) { return x < y ? x : y; }
int A[200002], B[200002], a[200002], O[200002], P[200002], Q, b[400004],
c[400004], f[200002], h[200002], n, s, t;
bool d[200002];
inline int dis(int u, int v) {
int w = 0;
for (; u != v; h[u] < h[v] ? v = f[v] : u... | ### Prompt
Please formulate a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
vector<int> no, a[200010];
int n, p[200010], q[200010], x, y, s1, s2, an1, an2, an3, an4;
bool ex = 1;
bool get(int x, int fa, int mu) {
no.emplace_back(x);
if (x == mu) return 1;
for (int y : a[x])
if (y != fa && get(y, x, mu)) return 1;
no.pop_back();
return... | ### Prompt
Please provide a Cpp coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
inline int read() {
int x = 0, f = 1;
char ch = getchar();
while (ch < '0' || ch > '9') {
if (ch == '-') f = -1;
ch = getchar();
}
while (ch >= '0' && ch <= '9') {
x = x * 10 + ch - '0';
ch = getchar();
}
return x * f;
}
vector<int> V[200010], ... | ### Prompt
Generate a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any other... |
#include <bits/stdc++.h>
inline int read() {
char c;
int x;
for (c = getchar(); !isdigit(c); c = getchar())
;
for (x = 0; isdigit(c); c = getchar()) {
x = x * 10 + c - '0';
}
return x;
}
const int N = 1e6 + 5;
int n, k, s, t, rs, rt, len, ans0, a[N], b[N], ft[N], dis[N], dit[N], deg[N];
long long an... | ### Prompt
Please create a solution in cpp to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 10;
int a[maxn], b[maxn], c[maxn];
int n, s, t;
vector<int> g[maxn];
int pa[20][maxn], dep[maxn];
void buildtree(int x, int fa) {
pa[0][x] = fa;
dep[x] = dep[fa] + 1;
for (int i = 0; i < g[x].size(); i++) {
int to = g[x][i];
if (to == fa... | ### Prompt
Please provide a CPP coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
inline int read() {
int x = 0, f = 1;
char ch = getchar();
while (ch < '0' || ch > '9') {
if (ch == '-') f = -1;
ch = getchar();
}
while (ch >= '0' && ch <= '9') {
x = x * 10 + ch - '0';
ch = getchar();
}
return x * f;
}
vector<int> V[200010], ... | ### Prompt
Your challenge is to write a CPP solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
long long read() {
long long x = 0, f = 0;
char ch = getchar();
while (!isdigit(ch)) f = ch == '-', ch = getchar();
while (isdigit(ch)) x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar();
return f ? -x : x;
}
const int N = 200005;
int n, s0, t0, s, t, tp;
vector<... | ### Prompt
Create a solution in cpp for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
namespace SHENZHEBEI {
static const int GYN = 2333333;
char SZB[GYN], *SS = SZB, *TT = SZB;
inline char gc() {
if (SS == TT) {
TT = (SS = SZB) + fread(SZB, 1, GYN, stdin);
if (SS == TT) return '\n';
}
return *SS++;
}
inline long long read() {
long long x = 0... | ### Prompt
Create a solution in CPP for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
const int WZP = 6666666;
char LZH[WZP], *SSS = LZH, *TTT = LZH;
inline char gc() {
if (SSS == TTT) {
TTT = (SSS = LZH) + fread(LZH, 1, WZP, stdin);
if (SSS == TTT) return EOF;
}
return *SSS++;
}
inline int read01() {
char s = gc();
for (; s < '0' || s > '1... | ### Prompt
Please provide a CPP coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
const int N = 200200;
int n, u, v, S, T, x, y, X, Y, Q, L, p, fl;
long long ans;
int hd[N], fa[N], vi[N], d[N], a[N], b[N], q[N];
struct edge {
int n, v;
} e[N << 1];
void add(int u, int v) {
e[++fl] = {hd[u], v};
hd[u] = fl;
}
void dfs(int u) {
for (int i = hd[u], ... | ### Prompt
In cpp, your task is to solve the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any ot... |
#include <bits/stdc++.h>
using namespace std;
template <typename T, typename S>
inline bool upmin(T& a, const S& b) {
return a > b ? a = b, 1 : 0;
}
template <typename T, typename S>
inline bool upmax(T& a, const S& b) {
return a < b ? a = b, 1 : 0;
}
template <typename N, typename PN>
inline N flo(N a, PN b) {
r... | ### Prompt
Generate a Cpp solution to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any other... |
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 200 * 1000 + 5;
int a[MAXN], b[MAXN], p[MAXN];
char onCycle[MAXN];
vector<int> g[MAXN];
void dfs(int v) {
for (size_t i = 0; i < g[v].size(); i++)
if (g[v][i] != p[v]) {
p[g[v][i]] = v;
dfs(g[v][i]);
}
}
long long solve(vector<int> cyc... | ### Prompt
Please provide a cpp coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
const int N = 200005;
using ll = long long;
int n, a[N], b[N], c[N], bk[N];
vector<int> v[N];
int fa[N], dep[N];
void dfs1(int pos) {
for (auto &i : v[pos])
if (i != fa[pos]) dep[i] = dep[fa[i] = pos] + 1, dfs1(i);
}
bool check() {
for (int i = 1; i <= n; i++) c[i] ... | ### Prompt
Please provide a cpp coded solution to the problem described below:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any isl... |
#include <bits/stdc++.h>
using namespace std;
int n;
int S, T;
int a[200050], b[200050];
int anc[200050];
int dep[200050];
int head[200050];
bool in[200050];
bool mark[200050];
vector<int> v;
struct edge {
int to, nex;
edge(int to = 0, int nex = 0) : to(to), nex(nex) {}
};
vector<edge> G;
void addedge(int u, int v)... | ### Prompt
Create a solution in Cpp for the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from any oth... |
#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 7;
int n, s, t, p, x, y, last[maxn], a[maxn], b[maxn], r[maxn], d[maxn];
vector<int> g, h, A, B;
pair<int, int> o = {maxn, 0};
struct Edge {
int v, nxt;
} e[2 * maxn];
int read() {
int x = 0;
char c = getchar();
while (c < '0' || c > '9') c = ... | ### Prompt
Please create a solution in cpp to the following problem:
A remote island chain contains n islands, with some bidirectional bridges between them. The current bridge network forms a tree. In other words, a total of n - 1 bridges connect pairs of islands in a way that it's possible to reach any island from a... |
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