solution
stringlengths
52
181k
difficulty
int64
0
6
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n, k, i, j, ans; cin >> n >> k; vector<int> a(n + 1); int count = 0; for (i = 1; i <= n; i++) { cin >> a[i]; if (a[i] < 0) count++; } k = k - count; if (k < 0) cout...
4
#include <bits/stdc++.h> using namespace std; #define REP(i,n) for(ll (i) = (0);(i) < (n);++i) #define REV(i,n) for(ll (i) = (n) - 1;(i) >= 0;--i) #define PB push_back #define EB emplace_back #define MP make_pair #define FI first #define SE second #define SHOW1d(v,n) {REP(WW,n)cerr << v[WW] << ' ';cerr << endl << end...
0
#include <iostream> #include <string> int main() { int n, a, b; std::string s; std::cin >> n >> a >> b >> s; int cnt = 0; int bcnt = 0; const int max = a + b; for (char c : s) { if (c == 'b') bcnt++; if (cnt >= max || c == 'c' || (c == 'b' && bcnt > b)) { std::cout << "No\n"; } else { std::cout ...
0
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(0); cin.tie(0); int t; cin >> t; while (t--) { string str1, str2; cin >> str1 >> str2; reverse(str1.begin(), str1.end()); reverse(str2.begin(), str2.end()); int first = str2.find("1"); int second = str...
1
#include <bits/stdc++.h> constexpr int a[] = {1, 0, 0, 0, 1, 0, 1, 0, 2, 1, 1, 2, 0, 1, 0, 0}; int f(int n) { return a[n % 16] + (n >= 16 ? f(n >> 4) : 0); } int main(void) { int n; std::cin >> n; std::cout << f(n); return 0; }
2
#include<iostream> #include<vector> #include<algorithm> typedef long long ll; using namespace std; ll gcd(ll a,ll b){ if(b==0)return a; return gcd(b, a%b); } ll lcm(ll a,ll b){ return a*b/gcd(a,b); } ll lcm_n(vector<ll> num){ ll l=num[0]; for(int i=0;i<num.size();i++)l=lcm(l,num[i]); return l; } ll fu...
0
#include <bits/stdc++.h> using namespace std; int main() { long long n, a, b; cin >> n >> a >> b; if (a * b >= 6 * n) { cout << a * b << endl; cout << a << " " << b << endl; } else { long long ret = (1LL << 60); long long x, y; for (long long i = 1; i <= 100000; i++) { long long j = 6 ...
2
#include <bits/stdc++.h> constexpr int dx[8] = {1, 1, 0, -1, -1, -1, 0, 1}; constexpr int dy[8] = {0, 1, 1, 1, 0, -1, -1, -1}; using namespace std; using ll = long long; using vi = vector<int>; using vl = vector<ll>; using vvi = vector<vi>; using vvl = vector<vl>; using pii = pair<int, int>; using pll = pair<ll, ll>; t...
6
#include <bits/stdc++.h> using namespace std; int n, m, a[1005]; vector<pair<int, int> > vec[1005]; int f[3][3]; long long go[125][125][32]; long long one[125][125][3]; long long dp[125][2]; long long way[1005][4]; long long DP[1005][4]; int main() { cin >> n; for (int i = 0; i < n; i++) cin >> a[i]; cin >> m; ...
6
#include <bits/stdc++.h> using namespace std; struct Point { long long x; long long y; }; int n; Point p[1000]; vector<int> adj[1000]; map<long long, vector<pair<long long, int>>> samex, samey; int vis[1000]; int comp[1000]; vector<array<long long, 5>> hor, vert; void dfs(int u, int c) { vis[u] = 1; comp[u] = c...
6
#include <bits/stdc++.h> using namespace std; #define REP(i,N) for(i=0;i<N;i++) typedef long long ll; typedef struct{ int from,to,cost; }edge; int main(void){ int i,n_node=1,n_2=1,L; cin >> L; vector<edge> v; while(2*n_2<=L&&n_node<20){ v.push_back({n_node,n_node+1,n_2}); n_2*=2; n_node++; } ...
0
#include <bits/stdc++.h> using namespace std; int k; vector<pair<int, int>> es[200006]; vector<int> ns(200006, 0); pair<long long, bool> solveG(int idx, int fa) { long long res = 0; bool odd = true; ns[idx] = 1; for (int i = 0; i < es[idx].size(); ++i) { if (es[idx][i].first == fa) continue; auto tRes =...
3
#include <bits/stdc++.h> using namespace std; double dp[201][256][300][2]; int main() { int x, k, p, i, j, l, r; double ans = 0; scanf("%d %d %d", &x, &k, &p); if (x & (1 << 8)) { int y = x >> 8, c = 0; while (y) { if (y % 2 == 0) break; y >>= 1; c++; } dp[0][x % 256][c][1] = 1...
5
#include <bits/stdc++.h> using namespace std; int main() { long long in; cin >> in; long long c = 0; bool flag = true; long long out = 1; while (in > 1 && flag) { flag = false; for (long long i = 2; i <= in / i; i++) if (in % i == 0) { flag = true; if (c < 2) out *= i; ...
1
#include <bits/stdc++.h> using namespace std; void no() { cout << -1 << "\n"; exit(0); } int32_t main() { ios::sync_with_stdio(0); cin.tie(0); map<long long, long long> col; cin >> col[4]; cin >> col[7]; cin >> col[47]; cin >> col[74]; if (abs(col[47] - col[74]) > 1) { no(); } string an = ""...
2
#include <bits/stdc++.h> using namespace std; void print(vector<int> &v) { for (int i = 0; i < v.size(); i++) { cout << v[i] << " "; } cout << endl; } void div(int a, vector<int> &v) { int ans = 0; for (int i = 1; i <= sqrt(a); i++) { if (a % i == 0) { if (a / i == i) { ans++; } el...
5
#include <bits/stdc++.h> using namespace std; inline long long gi() { long long _x = 0, _tmp = 1; char _tc = getchar(); while ((_tc < '0' || _tc > '9') && _tc != '-') _tc = getchar(); if (_tc == '-') _tc = getchar(), _tmp = -1; while (_tc >= '0' && _tc <= '9') _x *= 10, _x += (_tc - '0'), _tc = getchar(); r...
4
#include <bits/stdc++.h> using namespace std; int m, n, q[int(1e6)], a[int(1e6)]; int main() { scanf("%i", &m); int mn = 1e9; for (int i = 0; i < m; i++) { scanf("%i", &q[i]); if (q[i] < mn) mn = q[i]; } scanf("%i", &n); for (int i = 0; i < n; i++) scanf("%i", &a[i]); sort(a, a + n); long long i...
1
#include <bits/stdc++.h> using namespace std; const int Max = 2e6 + 10; const int Mod = 1e9 + 7; const long long int MAX = 2e18; int main() { int t; cin >> t; while (t--) { int ar[10], cnt = 0; cin >> ar[0] >> ar[1] >> ar[2]; if (ar[0]) { ar[0]--; cnt++; } if (ar[1]) { ar[1]-...
1
#include <bits/stdc++.h> using namespace std; const int INF = 1e9; const int MAXN = 35, MAXK = 50 + 10; int t, dp[MAXN][MAXN][MAXK]; vector<int> res; void make_dp() { for (int i = 0; i < MAXN; i++) for (int j = 0; j < MAXN; j++) for (int k = 0; k < MAXK; k++) dp[i][j][k] = INF; dp[0][0][0] = 0; dp[1][1]...
5
#include <bits/stdc++.h> using namespace std; const int MAXN = 1000; int a[MAXN]; int d[MAXN]; void solve() { int n; cin >> n; for (int i = 0; i < n; ++i) cin >> a[i]; d[0] = a[0]; d[1] = a[1]; for (int i = 2; i < n; ++i) d[i] = min(a[i], max(d[i - 1], d[i - 2])); cout << min(d[n - 1], d[0]) << endl; } in...
2
#include <bits/stdc++.h> using namespace std; const int oo = 0x3f3f3f3f; const long long OO = 1LL << 61; const long long MOD = 2147483647; const int maxn = 5005; long long dp[maxn][3]; struct EDGE { int v, next; long long w; } E[maxn << 1]; int head[maxn], tol; int U[maxn], V[maxn]; long long C[maxn]; void add_edge...
5
#include <bits/stdc++.h> using namespace std; const int maxn = 505; long long dp[2][maxn][maxn]; char str[maxn][maxn]; const int mod = 1000000007; int main() { int n, m; scanf("%d%d", &n, &m); for (int i = 0; i < n; i++) scanf("%s", str[i]); if (n + m <= 3) { printf("%d\n", str[0][0] == str[n - 1][m - 1]); ...
5
#include <bits/stdc++.h> using namespace std; long long ii, r, need, pl, ans, d[200000], x, y, i, j, n; int ch(int x, int y) { if (x > 0 && x <= n && y > 0 && y <= n) return 1; else return 0; } int main() { cin >> n; for ((i) = (0); i < (100001); ++i) d[i] = -1; for ((j) = (0); j < (n); ++j) { cin...
2
#include <bits/stdc++.h> using namespace std; int main() { int m, r; cin >> m >> r; double d0, d1, ans = 0; d0 = 2 * r; d1 = r * (2 + sqrt(2)); ans += m * d0 + (2 * m - 2) * d1; for (int i = 1; i <= m; i++) { double j = i - 2; if (j > 0) ans += j * (j + 1) * r + j * 2 * sqrt(2) * r; } for (int...
2
#include <bits/stdc++.h> using namespace std; int main(){ int N,M; cin >> N >> M; int a,b,c,d; a=1; b=N; for (int i=0;i<M;i++){ cin >> c >> d; if (a<c) a=c; if (d<b) b=d; } cout << max(0,b-a+1) << endl; }
0
#include <bits/stdc++.h> int main() { char a[102][102]; int n, m, i, j, d = 0; scanf("%d %d", &n, &m); for (i = 0; i < n; i++) { getchar(); scanf("%s", a[i]); } for (i = 0; i < n; i++) { for (j = 0; j < m; j++) { if (j > 0 && a[i][j] != a[i][j - 1]) { d++; break; } ...
1
#include <bits/stdc++.h> #define ll long long using namespace std; void fn0(int n, string a, string b) { string s; int j = 0, k = 0; while (true) { if (k >= 2 * n && j >= 2 * n) break; if (k >= 2 * n) s += a[j++]; else if (j >= 2 * n) s += b[k++]; else if (a[j] == b[k]) s ...
1
#include <bits/stdc++.h> using namespace std; long long x, y; long long gcd(long long a, long long b) { while (b) { a %= b; swap(a, b); } return a; } int main() { cin >> x >> y; if (gcd(x, y) != 1) { puts("Impossible"); return 0; } vector<pair<long long, char> > ans; while (x > 1 || y > ...
3
#include <bits/stdc++.h> using namespace std; using l2 = long long; int main() { ios::sync_with_stdio(0); cin.tie(NULL); int n, m, k; cin >> n >> m >> k; char s[n][m]; vector<int> ans(m, 0); for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cin >> s[i][j]; if (s[i][j] == 'L') { ...
2
#include <iostream> using namespace std; int main(){ string x,y; cin>>x>>y; cout<<y<<x; return 0;}
0
#include <bits/stdc++.h> using namespace std; const long long MAXN = 1e6; const long long MOD = 1610612741; const long long mod = 1e9 + 7; const long long INF = 1e15 + 5040; const int dx[4] = {1, -1, 0, 0}; const int dy[4] = {0, 0, -1, 1}; vector<pair<int, string>> reg[MAXN]; int main() { int n, m; cin >> n >> m; ...
2
#include <bits/stdc++.h> using namespace std; signed main() { ios::sync_with_stdio(false); cin.tie(0); long long n, x, y; cin >> n >> x >> y; string s; cin >> s; long long zero = 0, one = 0; for (long long i = 0; i < n; i++) { if (s[i] == '1') one++; else zero++; } string ans = "...
1
#include <bits/stdc++.h> using namespace std; inline bool check(int x) { for (; x; x /= 10) if (x % 10 != 4 && x % 10 != 7) return 0; return 1; } const int maxn = 100100; int head[maxn], nxt[maxn << 1], ver[maxn << 1], val[maxn << 1], tot; inline void addedge(int a, int b, int c) { nxt[++tot] = head[a]; ver...
5
#include <bits/stdc++.h> using namespace std; int main() { double n, m, a, b, s, t = 500.0; int num; cin >> n >> m >> num; for (int i = 0; i < num; ++i) { cin >> a >> b >> s; if (sqrt((a - n) * (a - n) + (b - m) * (b - m)) / s < t) t = sqrt((a - n) * (a - n) + (b - m) * (b - m)) / s; } printf(...
1
#include <bits/stdc++.h> using namespace std; double x[2005], y[2005]; double d[2005]; double eps = 1e-11; int main() { int n; scanf("%d", &n); for (int i = 1; i <= n; i++) { int a, b, c; scanf("%d%d%d", &a, &b, &c); x[i] = 1.0 * a * c / (a * a + b * b); y[i] = 1.0 * b * c / (a * a + b * b); } ...
4
#include "bits/stdc++.h" #include<unordered_map> #include<unordered_set> #pragma warning(disable:4996) using namespace std; using ld = long double; const ld eps = 1e-9; map<vector<int>, int>perm_mp; int main() { { vector<int>perms(4); std::iota(perms.begin(), perms.end(), 0); int k = 0; do { perm_mp[per...
0
#include <bits/stdc++.h> using namespace std; long double pie = 3.141592653589793238462643383279; long long mod = 1e9 + 7; long long dx[] = {-1, 1, 0, 0}; long long dy[] = {0, 0, 1, -1}; long long fact[2000005]; long long infact[2000005]; long long inv(long long a) { long long y = mod - 2; long long r = 1; while ...
4
#include <iostream> #include <vector> #include <algorithm> #include <string> using namespace std; struct edge { int to, cap, rev; }; vector<edge>X[100009]; bool used[100009]; string S[200]; int H, W; class Max_Flow { public: void add_edge(int u, int v, int w) { X[u].push_back(edge{ v, w, (int)X[v].size() }); X[v...
0
#include <bits/stdc++.h> using namespace std; void amn(long long &x, long long y) { x = min(x, y); } void amx(long long &x, long long y) { x = max(x, y); } const long long INF = 1e18; const long long N = 3e5 + 5; long long n, q; string s; long long pref[N][2][2]; void solve() { cin >> n >> q; cin >> s; s = "#" + ...
4
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; vector<int> vet(n); for (int &x : vet) cin >> x; int l = 0, r = n - 1; while (l < n - 1 && vet[l] < vet[l + 1]) l++; while (r >= 1 && vet[r] < vet[r - 1]) r--; l++; r = n - r; if (l % 2 || r % 2) cout << "Alice"; else ...
5
#include <bits/stdc++.h> using namespace std; int main() { int a, b; cin >> a >> b; int n; cin >> n; vector<double> v; while (n--) { int x, y, vv; cin >> x >> y >> vv; long long d = (x - a) * (x - a) + (y - b) * (y - b); double dd = sqrt(d * 1.000000); dd /= (vv * 1.00); v.push_back(...
1
#include <iostream> #include <map> #include <queue> #include <cmath> #include <vector> #include <string> #include <algorithm> #include <functional> using namespace std; int N; double X[10009], Y[10009]; double getscore(double px, double py) { double maxn = 0; for (int i = 1; i <= N; i++) { double dst = sqrt((px -...
0
#include <bits/stdc++.h> using namespace std; int main() { int r = 0, c = 0; string str; cin >> str; if (str.length() > 2) { for (int i = 0; i < str.length() - 2; i++) { if (str[i] == 'Q') { for (int j = i + 1; j < str.length() - 1; j++) { if (str[j] == 'A') r++; if (r > 0)...
1
#include <bits/stdc++.h> using namespace std; map<long long int, long long int> m; vector<long long int> v; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); long long int n, k; cin >> n >> k; string a; cin >> a; long long int max = 0; string ss = "abcdefghijklmnopqrstuvwxy...
2
#include <bits/stdc++.h> using namespace std; int main() { int n, flag = 0; cin >> n; map<string, int> z; stack<string> e; stack<string> c; string s; for (int i = n - 1; i >= 0; i--) { cin >> s; c.push(s); z[c.top()] = 1; } while (!c.empty()) { if (z[c.top()] == 1) { cout << c.to...
2
#include<bits/stdc++.h> using namespace std; string s; int main() { cin>>s; int n=s.size(); for(int i=n-2;i>=0;i--) { if((i+1)&1)continue; int x=(i+1)/2; if(s.substr(0,x)==s.substr(x,x)) { printf("%d\n",x*2); return 0; } } printf("0\n"); }
0
#include <bits/stdc++.h> using namespace std; void init_ios() { ios_base::sync_with_stdio(0); cin.tie(0); } const int N = 5 * (int)1e5 + 10; int n, res[N], ktory; string s[N]; set<int> se, pom; int main() { init_ios(); cin >> n; for (int i = 1; i <= n; ++i) { cin >> s[i]; res[i] = s[i].size(); if ...
4
#include <iostream> #include <vector> #include <algorithm> #include <string> #include <sstream> #include <cstring> #include <cstdio> #include <cstdlib> #include <cmath> #include <queue> #include <stack> #include <map> #include <set> #include <numeric> #include <cctype> #include <tuple> #include <array> #include <casser...
0
#include <bits/stdc++.h> using namespace std; int main() { int n, x, e, nn; deque<int> d; cin >> n; e = n; for (int i = 0; i < n; i++) cin >> x, d.push_back(x); for (int i = 0; i < n - 1; i++) if (d[i] > d[i + 1]) e = i + 1; nn = n - e; while (nn) { d.push_front(d.back()); d.pop_back(); ...
2
#include <bits/stdc++.h> using namespace std; long long b, d, s, mx, mi = (1LL << 60), r; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> b >> d >> s; mx = max(b, mx); mx = max(d, mx); mx = max(s, mx); mi = min(b, mi); mi = min(d, mi); mi = min(s, mi); r += max((mx - 1) ...
3
#include <bits/stdc++.h> using namespace std; int main() { int n, d; cin >> n >> d; long long x[n + 1]; for (int i = 0; i < n; i++) cin >> x[i]; x[n] = 2e18; long long i = 0, j = 0; long long ans = 0; while (i < n - 1) { long long p = abs(x[j] - x[i]); if (p <= d) { j++; } else { ...
1
#include <stdio.h> int root[1000][1000]; bool right[1000][1000]; int main() { int h, w, n, tmp, ax, ay; while(true) { scanf("%d%d%d", &h, &w, &n); if(h == 0 && w == 0 && n == 0) break; for(int y = 0; y < h; ++y) { for(int x = 0; x < w; ++x) { scanf("%d", &tmp); right[x][y] = tmp; root[x][y] = ...
0
#include <bits/stdc++.h> using namespace std; int main() { float H,W,N; cin>>H>>W>>N; cout<<min(ceil(N/H),ceil(N/W)); return 0; }
0
#include <bits/stdc++.h> using namespace std; int n = 0, mov[500500], sum[500500], dp[500500]; bool able[500500]; int main() { #define pud(x, y) min((x), abs((x) - (y))) scanf("%d%d", &n, sum); for(int i = 1; i <= n; i++) { scanf("%d", mov + i); sum[i] = pud(sum[i - 1], mov[i]); } dp[n + 1] = 1; for(int i = ...
0
#include <bits/stdc++.h> using namespace std; long long n, i, k, a; int main() { cin >> n; k = sqrt(2 * n); if (k * (k + 1) / 2 == n) a = k; if (k * (k + 1) / 2 < n) { a = n - k * (k + 1) / 2; } else if (k * (k + 1) / 2 > n) { a = n - k * (k - 1) / 2; } cout << a; }
1
#include <bits/stdc++.h> using namespace std; long long mod = 1e9 + 7; int32_t main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); ; long long n; cin >> n; long long arr[n]; for (long long i = 0; i < n; i++) cin >> arr[i]; if (n == 1) { cout << -1; return 0; } sort(arr, arr + n); ...
3
#include <bits/stdc++.h> using namespace std; int main() { int t; scanf("%d", &t); int ans = 0; for (int i = 1; i <= t; i++) { for (int j = i + 1; j <= t; j++) { int k = j + 1; if (i + j == k && k <= t) { ans += i * j * k; } } } cout << ans << endl; return 0; }
4
#include <bits/stdc++.h> using namespace std; int main(int argc, char** argv) { int m[5]; int w[5]; int x[5] = {50, 100, 150, 200, 250}; int h1, h2; for (int32_t i = 0; i < 5; ++i) { cin >> m[i]; } for (int32_t i = 0; i < 5; ++i) { cin >> w[i]; } cin >> h1 >> h2; int res = 0; for (int32_t ...
1
#include <bits/stdc++.h> using namespace std; const int N = 105, M = 1e5 + 7, INF = 0x3f3f3f3f; int ans = 0, head[N], to[M], nxt[M], val[M], fw[M], cnt = 1, S, T, d[N], q[N * N * N], pre[N], du[N]; bool v[N]; inline void link(int a, int b, int l, int r, int c) { to[++cnt] = b, nxt[cnt] = head[a], head[a] = cnt, f...
4
#include "iostream" #include "climits" #include "list" #include "queue" #include "stack" #include "set" #include "functional" #include "algorithm" #include "string" #include "map" #include "unordered_map" #include "unordered_set" #include "iomanip" #include "cmath" #include "random" #include "bitset" #include "cstdio" ...
0
#include<bits/stdc++.h> using namespace std; int main() { string s,t; cin>>s>>t; int ans=0; for(int i=0;i<s.length();i++) ans+=(s[i]!=t[i]); cout<<ans; return 0; }
0
#include <bits/stdc++.h> using namespace std; int main() { unsigned long long k, d, t, cycle, subTimes; unsigned long long ans = 0, velocity, t2; scanf("%lld%lld%lld", &k, &d, &t); k *= 2; d *= 2; t *= 2; subTimes = (k + d - 1) / d; cycle = subTimes * d; velocity = k + (cycle - k) / 2; ans = t / vel...
1
#include <bits/stdc++.h> using namespace std; int a, b, p1, p2, g1, g2, now1, now2, k; string s; int main() { cin >> a >> b; p1 = 0; p2 = 0; cin >> s; for (int i = 0; i < s.size(); ++i) { if (s[i] == 'U') ++p2; if (s[i] == 'D') --p2; if (s[i] == 'L') --p1; if (s[i] == 'R') ++p1; } bool bb ...
1
// 2019/11/20 Tazoe #include <iostream> #include <algorithm> using namespace std; const int INF = 1000000001; // ありえない大きい値 int main() { int N, M; cin >> N >> M; int D[1001]; for(int i=1; i<=N; i++){ cin >> D[i]; } int C[1001]; for(int j=1; j<=M; j++){ cin >> C[j]; } int DP[1001][1001]; for(int i=1;...
0
#include <bits/stdc++.h> using namespace std; const int M = 998244353; const int N = 2e5 + 1; int f[N]; int power(int a, int b) { int c = 1; while (b) { if (b & 1) c = (long long)c * a % M; b >>= 1; a = (long long)a * a % M; } return c; } int choose(int a, int b...
2
#include <bits/stdc++.h> using namespace std; long long n, k, ans, p_cnt[300005], m_cnt[300005], sp = 0; char in_s[300005]; int main() { long long i, j, x, y, len; scanf("%lld", &n); for (i = 0; i < n; i++) { scanf("%s", in_s); len = strlen(in_s); x = 0; for (j = 0; j < len; j++) x += ((in_s[j] - ...
3
#include <bits/stdc++.h> using namespace std; void __print(int x) { cerr << x; } void __print(long x) { cerr << x; } void __print(long long x) { cerr << x; } void __print(unsigned x) { cerr << x; } void __print(unsigned long x) { cerr << x; } void __print(unsigned long long x) { cerr << x; } void __print(float x) { cer...
4
#include <bits/stdc++.h> using namespace std; set<int> s; int n, x, y; int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> x; int ans = 0; while (n--) { cin >> y; s.insert(y); } for (int i = 0; i < x; ++i) if (s.count(i) == 0) ans++; if (s.count(x) == 1) ans++; cou...
1
#include <bits/stdc++.h> int main() { int n; scanf("%d", &n); if (n % 2 == 0) { puts("-1"); return 0; } for (int i = 0; i < n; i++) printf("%d ", i); puts(""); for (int i = 0; i < n; i++) printf("%d ", i); puts(""); for (int i = 0; i < n; i++) printf("%d ", (i + i) % n); puts(""); return 0...
3
#include <bits/stdc++.h> #define FOR(i, a, n) for(ll i = (ll)a; i < (ll)n; i++) #define FORR(i, n) for(ll i = (ll)n - 1LL; i >= 0LL; i--) #define rep(i, n) FOR(i, 0, n) #define ALL(x) begin(x), end(x) using namespace std; using ll = long long; constexpr ll Mod = 998244353; constexpr ll mod = 1e9 + 7; constexpr ll inf =...
0
#include <bits/stdc++.h> using namespace std; signed main() { ios::sync_with_stdio(0); cin.tie(0); long long n; cin >> n; string s; cin >> s; long long x = 0, y = 0; for (long long i = 0; i < n; i++) { if (s[i] == '0') x++; else y++; } cout << n - min(x, y) * 2; return 0; }
1
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int mod = 1073741824; char isprime[1000001]; memset(isprime, 'y', sizeof(isprime)); vector<int> primes; for (int i = 2; i < 1000001; i++) { if (isprime[i] == 'n') continue; int j = 2 * i; ...
2
#include <bits/stdc++.h> using namespace std; int a[11][111], b[11][111], c[11][111]; char str[111]; struct node { int n, v; node(int _n, int _v) { n = _n, v = _v; } node() {} friend bool operator<(node a, node b) { return a.v > b.v; } } p[111]; int main() { int n, m, cc; while (~scanf("%d%d%d", &n, &m, &cc...
3
#include <bits/stdc++.h> using namespace std; const int N = 1e5 + 10; int n, q, a[N]; namespace Seg { int si[N << 2]; long double sm[N << 2], mt[N << 2], st[N << 2]; inline void pushup(int v) { sm[v] = sm[v << 1] + sm[v << 1 | 1]; } inline void pushdown(int v) { if (mt[v] != 1) { sm[v] *= mt[v]; if (si[v] > 1...
5
#include <bits/stdc++.h> using namespace std; const int maxn = 5050; int a[maxn]; struct node { int l, r; }; node fuck[maxn]; int have[maxn], tmp[maxn], prefix[maxn]; int main() { int i, j, k, n, m; while (scanf("%d%d", &n, &m) != EOF) { memset(have, 0, sizeof(have)); for (i = 1; i <= m; i++) { scan...
3
#include <bits/stdc++.h> using namespace std; struct Data { int value; bool nonzero; bool use; Data() { value = 0; nonzero = false; use = false; } friend bool operator<(Data a, Data b) { return (a.value > b.value); } }; vector<Data> Latin_set(10); void process(string& str) { int size = str.siz...
3
#include <bits/stdc++.h> #pragma GCC optimize("O3") #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") using namespace std; bool check(vector<long long> a) { for (long long i = 0; i < a.size(); i++) { if (a[i] == i + 1) { return false; } } return true; } long long coun(long long n) {...
4
#include <bits/stdc++.h> using namespace std; int n, a[55], sum = 0, p; long long f[55][55], c[55][55]; double ans = 0.0; void Build() { for (int i = 0; i <= n; i++) { c[i][0] = 1; for (int j = 1; j <= i; j++) c[i][j] = c[i - 1][j - 1] + c[i - 1][j]; } } void Solve(int pos) { for (int i = 0; i < 55; ++i) ...
2
#include <bits/stdc++.h> using namespace std; const int MAXN = 1100; const long long inf = (int)1e18; const int infi = (int)1e9 + 1000; int n, m, L, s, t; vector<pair<int, int> > graf[MAXN]; vector<pair<pair<int, int>, int> > edgesN, edgesV; void load() { scanf("%d%d%d%d%d", &n, &m, &L, &s, &t); for (int i = 0; i <...
2
#include <bits/stdc++.h> using namespace std; const int maxn = 100000 + 5; bool m[maxn]; int a[maxn]; int main() { int n, sum = 0; cin >> n; for (int i = 1; i <= n; i++) { cin >> a[i]; sum += a[i]; } if (n == sum) { cout << "YES" << endl; return 0; } bool flag = false; for (int t = 3; t ...
3
#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; } inline void write(int x...
6
#include <bits/stdc++.h> using ul = std::uint32_t; using ull = std::uint64_t; using li = std::int32_t; using ll = std::int64_t; ul n, m; int main() { std::ios::sync_with_stdio(false); std::cin.tie(0); std::cin >> n >> m; if (n > m) { std::swap(n, m); } if (n == 1) { std::cout << m / 6 * 6 + (m % 6 >...
2
#include <bits/stdc++.h> using namespace std; int main() { int n, m, x; cin >> n >> m; map<int, int> mp; for (int i = 0; i < n; i++) { cin >> x; x %= m; mp[x]++; } int res = mp[0]; if (res % 2) res--; for (int i = 1; i < m; i++) { if (i != m - i) { res += min(mp[i], mp[m - i]) * 2;...
2
#include <bits/stdc++.h> const int inf = 0x3f3f3f3f, Inf = 0x7fffffff; const long long INF = 0x7fffffffffffffff; const double eps = 1e-10; unsigned int seed = 19260817; const unsigned int _RAND_MAX_ = 4294967295u; __inline__ __attribute__((always_inline)) unsigned int Rand() { return seed = seed * 998244353u + 100000...
2
#include <bits/stdc++.h> using namespace std; double f[1001][1001]; int a[1001]; int main() { int n, m; cin >> n >> m; for (int i = 0; i < n; i++) cin >> a[i]; for (int i = 0; i < n; i++) for (int j = 0; j < n; j++) f[i][j] = (a[i] > a[j]); while (m--) { int u, v; cin >> u >> v; u--; v--; ...
4
#include <bits/stdc++.h> using namespace std; const long double ep = 0.000001; const long double PI = 3.14159265359; const int mod = 998244353; const int MAX = 300009; long long n, m, l[4], x, y, t, vis[MAX], po[2 * MAX], color[MAX], visited[MAX], po3[2 * MAX]; vector<long long> d[MAX]; bool check(long long v) { ...
4
#include <iostream> #include <cstdio> #include <iomanip> #include <vector> #include <map> #include <set> #include <queue> #include <bitset> #include <stack> #include <utility> #include <numeric> #include <algorithm> #include <functional> #include <cctype> #include <complex> #include <string> #include <sstream> using n...
0
#include <bits/stdc++.h> using namespace std; using ll = long long; using pii = pair<int, int>; const int MOD = 1000000007; int n; ll ar[200005]; ll ans = 1e18; set<ll> mem; void tes(ll x) { if (x == 1) return; if (mem.count(x)) return; mem.insert(x); ll tp = 0; for (int i = (0); i < (n); i++) { if (ar[i]...
6
#include <bits/stdc++.h> using namespace std; const long long mo = 998244853; const long long INF = 0x3f3f3f3f; template <typename _T> void read(_T &x) { _T f = 1; x = 0; char s = getchar(); while (s > '9' || s < '0') { if (s == '-') f = -1; s = getchar(); } while (s >= '0' && s <= '9') { x = (x...
5
#include <bits/stdc++.h> using std::max; using std::min; using std::vector; const int MAXN = 1e6 + 20; namespace MyIO { const int MAXB = 1 << 10; char gbuf[MAXB], *ps = gbuf, *pt = gbuf; char pbuf[MAXB + 1], *pp = pbuf; struct Flusher { ~Flusher() { fwrite(pbuf, 1, pp - pbuf, stdout); } } flusher; inline char Getchar...
4
#include <bits/stdc++.h> using namespace std; const int N = 10010, oo = 100000000, T = 1000; int i, j, k, n, m, x, now, last, fg, Time; int a[N], b[N]; int main() { now = -oo; last = 12211221; while (now <= oo) { printf("0 %d %d\n", now, now); fflush(stdout); scanf("%d", &x); if (!x) { if (n...
4
#include <bits/stdc++.h> #pragma GCC optimize("O3") #pragma GCC target("avx2") #pragma GCC target(sse, sse2, sse3, ssse3, sse4, popcnt, tune = native) #pragma GCC optimize( ...
5
#include <iostream> #include <vector> #include <queue> using namespace std; const int INF = 1e9; int solve(vector< vector< pair<int, int> > > &G, int C){ int n = G.size(); vector< vector<int> > D(n, vector<int>(n, INF)); priority_queue< pair<int, int> > wait; wait.emplace(0, 0); D[0][0] = 0; while(!wait.em...
0
#include <bits/stdc++.h> using namespace std; const int N = 100005; bool f(long long a, long long b) { if (!a) return 0; return !(f(b % a, a) && (b / a % (a + 1) % 2)); } int main() { int t; scanf("%d", &t); while (t--) { long long a, b; scanf("%I64d%I64d", &a, &b); if (a > b) a ^= b, b ^= a, a ^=...
3
#include <bits/stdc++.h> using namespace std; map<int, int> mapa; vector<int> ls; int tot, ne; int a[300100], b[300100], c[300100]; int qtd[2 * 300100]; void func(int p, int v) { qtd[p] += v; if (v > 0 && qtd[p] == 0) ne++; if (v < 0 && qtd[p] == -1) ne--; } int main() { int n, m, p; scanf("%d %d %d", &n, &m,...
2
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int totalCups = 0; int totalMedals = 0; for (int i = 0; i < 3; i++) { int x; cin >> x; totalCups += x; } for (int i = 0; i < 3; i++) { int x; cin >> x; totalMedals += x; } ...
1
#include <bits/stdc++.h> using namespace std; int main() { int k; string s; cin >> s >> k; vector<string> c(k * s.length()); for(int i = 0; i < s.length(); i++) for(int j = 0; j < k; j++) c.at(k * i + j) = s.substr(i, j + 1); sort(c.begin(), c.end()); unique(c.begin(), c.end()); cout << c.at(...
0
#include <bits/stdc++.h> using namespace std; using db = double; using ll = long long; using ull = unsigned long long; using pII = pair<int, int>; using pLL = pair<ll, ll>; constexpr int mod = 1e9 + 7; template <class T1, class T2> inline void chadd(T1 &x, T2 y, int Mod = mod) { x += y; while (x >= Mod) x -= Mod; ...
6
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int cost; double amount; cin >> cost; string s[n]; for (int i = 0; i < n; i++) { cin >> s[i]; } int counter = 1; double sum = 1.0; for (int i = n - 2; i >= 0; i--) { if (s[i] == "halfplus") { counter++; ...
1