solution
stringlengths
53
181k
difficulty
int64
0
27
#include <bits/stdc++.h> using namespace std; const int inf = 0x3f3f3f3f; const int mod = 1e9 + 7; const int N = 1e3 + 10; int n, m, a[N]; long long dp[N][N], x; int main() { scanf("%d%d", &n, &m); for (int i = 1; i <= n; i++) scanf("%d", &a[i]); memset(dp, inf, sizeof(dp)); dp[n + 1][0] = 0; for (int i = n; ...
15
#include <bits/stdc++.h> using namespace std; int main() { int d1, d2, d3, sum = 0, p; cin >> d1 >> d2 >> d3; sum += min(min(d1, d2 + d3), min(d2, d1 + d3)); if (sum == d1) p = d1; else p = d2; sum += min(d3, (d2 + d1)); if (p == d1) sum += min(d2, (d1 + d3)); else sum += min(d1, (d2 + d...
0
#include <bits/stdc++.h> using namespace std; const int N = 100000 + 10; long long int a[N], b[N]; int main() { int n; scanf("%d", &n); long long int sum = 0; for (int i = 0; i < n; i++) { scanf("%d", &a[i]); sum += a[i]; } for (int i = 0; i < n; i++) { scanf("%d", &b[i]); } sort(b, b + n, g...
1
#include <bits/stdc++.h> using namespace std; long long n, p[100005][2], front[100005], t; int main() { ios::sync_with_stdio(false); cin >> n; for (int i = 0; i < n; i++) { cin >> p[i][0] >> p[i][1]; } cin >> t; for (int c = 0; c < t; c++) { int x, y; cin >> x >> y; bool f = 0; for (int ...
17
#include <bits/stdc++.h> using namespace std; ifstream fin("in.in"); ofstream fout("out.out"); const int N = 1e5 + 10, L = 18; int n, m, q, k, c[N], h[N], par[N][L], mx[N][L]; vector<pair<int, int> > adj[N]; long long sum; struct edge { int x, y, w; bool operator<(const edge snd) const { return w < snd.w; } } e[N <...
19
#include <bits/stdc++.h> using namespace std; string s; int main() { cin >> s; int n = s.length(), d = 0; string x = "[]|:"; bool kn = 0, kc = 0; int l, r; for (int i = 0; i < n && (kn == 0 || kc == 0); i++) if (x.find(s[i]) == x.npos) d++; else { if (kn == 0) { if (s[i] == '[') ...
5
#include <bits/stdc++.h> using namespace std; inline bool compare(long long int i, long long int j) { return i < j; } template <typename T> T gcd(T a, T b); template <typename T> T modpow(T number, T power, T mod_value); string s; char ch[3] = {'a', 'b', 'c'}; bool check(long long int p) { bool left_, right_; if (p...
2
#include <bits/stdc++.h> using namespace std; int n; char buf[100002]; int s[100002]; int t[100002]; int pl[100002]; int neg[100002]; int tmp[100002]; set<int> P; set<int> N; vector<pair<int, int> > ans; int main() { cin >> n; scanf("%s", buf); for (int i = 0; i < n; i++) { s[i] = buf[i] - '0'; tmp[i] = s...
19
#include <bits/stdc++.h> using namespace std; const int MAXN = 200; const int INF = 1000000007; char buf[MAXN][MAXN]; int cnt[MAXN][MAXN]; int dp[MAXN][MAXN]; int main() { int r, c, t, ans; scanf("%d%d", &r, &c); for (int i = 0; i < r; ++i) { scanf("%s", buf[i]); } t = 0; for (int i = 0; i < r; ++i) { ...
7
#include <bits/stdc++.h> using namespace std; const int maxn = 1000000000; int main() { int c, w1, v1, w2, v2; scanf("%d%d%d%d%d", &c, &v1, &v2, &w1, &w2); if ((long long)v1 * w2 < (long long)v2 * w1) swap(v1, v2), swap(w1, w2); int sq = sqrt(maxn + 0.5); long long ans = 0LL; if (w1 <= sq) for (long lon...
12
#include <bits/stdc++.h> using namespace std; const int N = 100005; const int INF = 1e9; struct robot { long long c, f; } mas[N]; bool cmp1(robot a, robot b) { if (a.c == b.c) return a.f > b.f; return a.c > b.c; } bool cmp2(robot a, robot b) { return a.f < b.f; } int main() { int n, d, s; cin >> n >> d >> s; ...
15
#include <bits/stdc++.h> int n, k; std::string s; char e; unsigned long long c = 0; std::set<char> keys; unsigned long long ans = 0; int main() { std::cin >> n >> k; std::cin >> s; for (size_t i = 0; i < k; i++) { std::cin >> e; keys.insert(e); } for (size_t i = 0; i < n; i++) { if (keys.count(s[i...
4
#include <bits/stdc++.h> using namespace std; const int N = 5005, MOD = 1e9 + 7; int f[N][N], C[N][N], las[N], tmp[26]; char s[N]; int main() { C[0][0] = 1; for (int i = 1; i < N; ++i) { C[i][0] = 1; for (int j = 1; j <= i; ++j) C[i][j] = (C[i - 1][j] + C[i - 1][j - 1]) % MOD; } int n; scanf("%d...
16
#include <bits/stdc++.h> using namespace std; long int a[1111], b[1111]; int main() { int n, m; cin >> n >> m; long long ans = 0, sum = 0; for (int i = 0; i < n; i++) { cin >> a[i]; sum += a[i]; } vector<long int> v; for (int i = 0; i < m; i++) { cin >> b[i]; sum -= a[b[i] - 1]; v.push...
6
#include <bits/stdc++.h> using namespace std; template <class T> void splitstr(const string &s, vector<T> &out) { istringstream in(s); out.clear(); copy(istream_iterator<T>(in), istream_iterator<T>(), back_inserter(out)); } template <class T> T from_string(string s) { T result; istringstream sin(s); sin >> ...
10
#include <bits/stdc++.h> using namespace std; const int md = 1e9 + 7; inline void add(int &a, int b) { a += b; if (a >= md) a -= md; } inline void sub(int &a, int b) { a -= b; if (a < 0) a += md; } inline int mul(int a, int b) { return (int)((long long)a * b % md); } int pow(int a, int b) { int res = 1; whi...
11
#include <bits/stdc++.h> using namespace std; string s; int main() { cin >> s; int q; cin >> q; while (q--) { int l, r, k; scanf("%d %d %d", &l, &r, &k); l--, r--; k %= (r - l + 1); string p = s; for (int i = l; i <= r; i++) { int to = i - k; if (to < l) to = r - (l - to - 1)...
5
#include <bits/stdc++.h> using namespace std; const double Eps = 1e-8; struct point { double x, y; }; point v, p, w1, w2, m1, m2, o, _p; void input() { scanf("%lf%lf", &v.x, &v.y); scanf("%lf%lf", &p.x, &p.y); scanf("%lf%lf%lf%lf", &w1.x, &w1.y, &w2.x, &w2.y); scanf("%lf%lf%lf%lf", &m1.x, &m1.y, &m2.x, &m2.y)...
16
#include <bits/stdc++.h> int main() { char a[200], b[200], c[200]; gets(a); gets(b); int i, j, k, l = 0; int m = strlen(a), n = strlen(b); for (i = m - 1, j = 0; i >= 0; i--, j++) { c[j] = a[i]; if (c[j] == b[j]) { l = l + 1; } } if (l == m) { printf("YES"); } else { printf("...
0
#include <bits/stdc++.h> using namespace std; int N, K; int A[714514]; long long dp[5100][5100]; int main() { scanf("%d%d", &N, &K); for (int(i) = 0; (i) < (N); (i)++) scanf("%d", &A[i]); sort(A, A + N); int p1 = N % K; int p2 = K - p1; int w = N / K; for (int(i) = 0; (i) < (5100); (i)++) for (int(j) ...
12
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); long long n; cin >> n; vector<pair<long long, long long> > ip(n); for (int i = 0; i < n; i++) { long long t; cin >> t; ; ip[i] = {t, i + 1}; } sort(ip.begin(), ip.end()...
7
#include <bits/stdc++.h> const int N = 200200; const int Q = 2 * N; using namespace std; int n; int a[N]; int c[N]; int s[N]; int le[N]; int ri[N]; int f[Q]; int mx; set<int> S; int t[N]; void upd(int x, int y) { while (x < N) { t[x] += y; x += x & -x; } } int get(int x) { int res = 0; while (x > 0) { ...
18
#include <bits/stdc++.h> using namespace std; const size_t Nmax = 100000; struct participant_t { int s, a, b; void read() { scanf("%i %i %i", &s, &a, &b); } friend bool operator<(const participant_t& p, const participant_t& q) { return p.a - p.b > q.a - q.b; } } P[Nmax + 1]; int N, S; long long T; inline in...
11
#include <bits/stdc++.h> using namespace std; using ll = long long; int const N = 1e6 + 10; ll a[N]; struct Node { ll maxx{0LL}, minn{0LL}, sum{0LL}, lazy{0LL}, num{0LL}; Node() = default; } tree[N]; void pushup(ll rt) { tree[rt].sum = tree[rt << 1].sum + tree[rt << 1 | 1].sum; tree[rt].maxx = max(tree[rt << 1]...
18
#include <bits/stdc++.h> using namespace std; int x[510]; int main() { int n, m; scanf("%d%d", &n, &m); for (int i = (0); i < (n); ++i) { scanf("%d", &x[i]); } double res = 0; for (int i = (0); i < (m); ++i) { int v1, v2, c; scanf("%d%d%d", &v1, &v2, &c); double now = x[v1 - 1] + x[v2 - 1]; ...
8
#include <bits/stdc++.h> using namespace std; const long long N = 1e5 * 3 + 2, oo = INT_MAX, mod = 100000007; void debug() { cerr << '\n'; } template <typename Head, typename... Tail> void debug(Head H, Tail... T) { cerr << " " << to_string(H); debug(T...); } int main() { ios_base::sync_with_stdio(false); cin.t...
7
#include <bits/stdc++.h> using namespace std; bool visit[1000005]; int main() { int n; cin >> n; vector<int> x; int MAX = INT_MIN; int y; for (int i = 0; i < n; i++) { cin >> y; x.push_back(y); MAX = max(y, MAX); } int c = 0; int i = 0; int dirC = 0; bool increOn = true; bool justSta...
4
#include <bits/stdc++.h> using namespace std; double a[50005]; int main() { double n, k; cin >> n >> k; for (int i = 0; i < n; i++) { cin >> a[i]; } double mx = 0, sum = 0, d = 0; for (int i = k; i <= n; i++) { sum = 0; for (int j = 0; j < i; j++) { sum += a[j]; } d = sum / double(...
5
#include <bits/stdc++.h> using namespace std; long long head[100005], cnt, n, m, k, ans, x[100005]; bool y[100005]; struct ed { long long next, to, val; } e[100005 * 4]; inline void ins(int u, int v, int w) { e[++cnt].to = v; e[cnt].val = w; e[cnt].next = head[u]; head[u] = cnt; } int main() { scanf("%I64d%...
5
#include <bits/stdc++.h> using namespace std; long long x, k; const int MOD = 1e9 + 7; long long mod_pow(long long x, long long n, long long mod) { long long res = 1; while (n > 0) { if (n & 1) res = res * x % mod; x = x * x % mod; n >>= 1; } return res; } int main() { cin >> x >> k; if (x == 0)...
8
#include <bits/stdc++.h> using namespace std; int n, m, l, r, ans(1000000007); int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.setf(ios::fixed); cout.precision(0); cin >> n >> m >> l >> r; if (l == 1 && r == n) ans = 0; if (l == 1) ans = min(ans, abs(m - r) + 1); if (r == n) ans = min(ans, a...
5
#include <bits/stdc++.h> using namespace std; inline int cmp(double x, double y = 0, double tol = 1e-10) { return (x <= y + tol) ? (x + tol < y) ? -1 : 0 : 1; } vector<long long int> v; void solve(long long int n) { if (n > 777777777) return; v.push_back(n); solve(n * 10 + 4); solve(n * 10 + 7); } int main() ...
3
#include <bits/stdc++.h> using namespace std; long long int mod_pow(long long int a, long long int b, long long int m) { long long int res = 1; while (b) { if (b & 1) res = (res * a) % m; a = (a * a) % m; b >>= 1; } return res; } bool isPrime(long long int n) { if (n <= 1) return false; for (lon...
2
#include <bits/stdc++.h> int n; int ex[105]; int a, b; int sum; int main() { scanf("%d", &n); for (int i = 1; i < n; ++i) scanf("%d", &ex[i]); scanf("%d%d", &a, &b); for (int i = a; i < b; ++i) sum += ex[i]; printf("%d", sum); return 0; }
0
#include <bits/stdc++.h> using namespace std; int main() { std::ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); long long t = 1; cin >> t; while (t--) { long long n, i, s = 0, j = 1, q = 0; cin >> n; long long a[n]; for (i = 0; i < (n); i++) cin >> a[i]; for (i = 0; i < (n); i...
2
#include <bits/stdc++.h> using namespace std; const int N = 1e5 + 10; struct Res { int u, v; long long w; void read() { scanf("%d %d %lld", &u, &v, &w); } bool operator<(const Res &t) const { return w < t.w; } } edge[N]; struct Node { int u; long long w; bool operator<(const Node &t) const { return w > t....
18
#include <bits/stdc++.h> using namespace std; long long n, a[100100], rs; map<long long, long long> M; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n; for (int i = 1; i <= n; i++) cin >> a[i], M[a[i]]++; sort(a + 1, a + n + 1); if (a[3] != a[2]) cout << M[a[3]]; else if...
7
#include <bits/stdc++.h> using namespace std; const long long inf = 1e18; const long long mod = 1e9 + 7; const long long MAXN = 1000000; using ll = long long; void fast_stream() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); } ll doit(vector<ll> s) { if (s.size() == 1) { return 1; } ll mini = ...
14
#include <bits/stdc++.h> using namespace std; long long int gcd(long long int a, long long int b) { if (b == 0) return a; return gcd(b, a % b); } long long int power(long long int x, long long int n) { if (n == 0) return 1; if (n % 2) return x * power(x * x, (n - 1) / 2); return power(x * x, n / 2); } long lo...
9
#include <bits/stdc++.h> using namespace std; int n, m, X, Y; int pm[(1 << 17)], pc[(1 << 17)]; int mmd[(1 << 17)], ddt[(1 << 17)]; int mrk[(1 << 17)]; int Ans; int main() { scanf("%d%d%d%d", &n, &m, &X, &Y); for (int i = 0; i < n; i++) { scanf("%d", &pm[i]); } for (int i = 0; i < m; i++) { scanf("%d", ...
13
#include <bits/stdc++.h> inline long long read() { char c = getchar(); while (c != '-' && (c < '0' || c > '9')) c = getchar(); long long k = 0, kk = 1; if (c == '-') c = getchar(), kk = -1; while (c >= '0' && c <= '9') k = k * 10 + c - '0', c = getchar(); return kk * k; } using namespace std; void write(lon...
17
#include <bits/stdc++.h> using namespace std; const int N = 100 * 1000 + 100; int s[N], n, K; void read() { cin >> n >> K; for (int i = 0; i < n; i++) cin >> s[i]; } bool cal(int x) { int i = 0, j = n - 1, k = 0; while (i <= j) { if (s[i] + s[j] <= x) i++, j--, k++; else if (s[i] > s[j] && s[i] <=...
6
#include <bits/stdc++.h> using namespace std; const int MAXN = 200007, MAXK = 5; vector<int> G[MAXN]; int n, k; bool used[MAXN]; long long ans = 0, cnt[MAXN][MAXK], sum[MAXN][MAXK]; void dfs(int v, bool root) { used[v] = true; cnt[v][0]++; for (int i = (0); i < (((int)(G[v]).size())); ++i) { int to = G[v][i];...
13
#include <bits/stdc++.h> int main() { int n; std::string s; std::cin >> n >> s; std::vector<int> mx(26, 0); std::vector<int> dp(n, 1); for (int i = 0; i < n; ++i) { for (int c = 25; c > s[i] - 'a'; --c) dp[i] = std::max(dp[i], mx[c] + 1); mx[s[i] - 'a'] = std::max(mx[s[i] - 'a'], dp[i]); } std::...
12
#include <bits/stdc++.h> using namespace std; const int sz = 1009; bool arr[sz][sz], out[sz][sz]; int16_t x, y, l[sz][sz], r[sz][sz], t[sz][sz], b[sz][sz]; int16_t A, B, C, D; char inp; vector<int> vec; int main() { ios::sync_with_stdio(0); cin.tie(0); bool check = 1; cin >> x >> y; int counter = 0; for (in...
11
#include <bits/stdc++.h> using namespace std; const long long int INF = 1000000007; const int N = 100000 + 7; int main() { int a, b, c, d; cin >> a >> b >> c >> d; for (int i = 1; i <= 200; i++) { for (int j = 1; j < i; j++) { for (int k = 1; k < i; k++) { if (a <= i && i <= 2 * a && b <= j && j...
5
#include <bits/stdc++.h> using namespace std; const int maxn = 5e5 + 1; int n, m, a[maxn], ans[maxn]; const int B = 20; struct LB { int vec[B], pos[B]; LB() { memset(vec, 0, sizeof(vec)); memset(pos, 0, sizeof(pos)); } inline void push(int value, int pos) { for (int i = B - 1; i >= 0; --i) if ...
17
#include <bits/stdc++.h> #pragma comment(linker, "/stack:64000000") using namespace std; struct DSU { vector<int> rank; vector<int> prev; DSU(int n) { rank.assign(n, 0); prev.assign(n, -1); } int findSet(int x) { if (prev[x] == -1) return x; return prev[x] = findSet(prev[x]); } void unionS...
15
#include <bits/stdc++.h> using namespace std; class Solution { public: void solve(std::istream& in, std::ostream& out) { int n; in >> n; int first = 1; auto ask = [&](int one_cnt) { out << "? " + std::string(one_cnt, first == 0 ? '0' : '1') + std::string(n - one_cnt, first == 0...
12
#include<bits/stdc++.h> using namespace std; typedef long long ll; #define F first #define S second #define PB push_back #define MP make_pair #define endl "\n" ll const INF=1000000007; ll mod=1e9+7; ll gcd(ll a,ll b) { if(a==0) return b; if(b==0) return a; return gcd(b,a%b); } void test() { ll...
2
#include <bits/stdc++.h> using namespace std; int main() { int x, y, x0, y0; scanf("%d%d%d%d", &x, &y, &x0, &y0); char b[100010]; getchar(); gets(b); int a[501][501]; memset(a, 1, sizeof(a)); int t = strlen(b); int sum = x * y; int z; for (int i = 0; i < t; i++) { if (a[x0][y0]) z = 1; ...
8
#include <iostream> #include <cstdio> #include <cstdlib> #include <algorithm> #include <cmath> #include <vector> #include <set> #include <map> #include <unordered_set> #include <unordered_map> #include <queue> #include <ctime> #include <cassert> #include <complex> #include <string> #include <cstring> #include <chrono> ...
16
#include <bits/stdc++.h> using namespace std; int main() { int n, mhp, reg, sp[1010][2], got[1010] = {0}; scanf("%i %i %i\n", &n, &mhp, &reg); for (int i = 0; i < n; i++) { scanf("%i %i", &sp[i][0], &sp[i][1]); sp[i][0] = sp[i][0] * mhp / 100; } int sub = 0; int t = -1; int resind = 0; int res[1...
10
#include <bits/stdc++.h> using namespace std; inline long long read() { long long x = 0, f = 1; char c = getchar(); for (; !isdigit(c); c = getchar()) if (c == '-') f = -1; for (; isdigit(c); c = getchar()) x = x * 10 + c - '0'; return x * f; } const long long MAXN = 300000; const long long INF = 21474836...
16
#include <bits/stdc++.h> using namespace std; int main() { long long n; cin >> n; long long x, y; cin >> x >> y; long long a = abs(1 - x) + abs(1 - y); long long b = abs(n - x) + abs(n - y); if (a <= b) cout << "White" << endl; else if (a > b) cout << "Black" << endl; }
0
#include <bits/stdc++.h> using namespace std; const long long INF = 1e18; const int MOD = 1e9 + 7; const int dx[4] = {0, 0, -1, 1}; const int dy[4] = {-1, 1, 0, 0}; const int N = 2e5 + 1; int n, m, x[3]; vector<int> a[N], dis[3]; long long p[N]; void bfs(int s, int cur) { dis[cur].assign(n + 1, -1); ; queue<int> ...
13
#include <bits/stdc++.h> using namespace std; pair<int, int> ps[2002]; int id[2002], pos[2002]; pair<int, int> line[4000006]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n; long long s; cin >> s; s <<= 1; for (int i = 1; i <= n; ++i) cin >> ps[i].first >> ps[i].second; sort(ps...
19
#include <bits/stdc++.h> using namespace std; long long inv[1009]; int f[200009]; long long mod = 998244353; long long P[200009], IP[200009], S[200009]; long long F(int l, int r) { return ((S[r - 1] - S[l - 1] + mod) * IP[l - 1] + 1) % mod * IP[r] % mod * P[l - 1] % mod; } int main() { long long n, q; ci...
16
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0); int t; cin >> t; while (t) { int n; cin >> n; for (int i = 0; i < n; i++) cout << 1 << " "; cout << endl; t--; } }
0
#include <bits/stdc++.h> using namespace std; const int INF = 1000000000; int max1[1000010]; int max2[1000010]; int nmax1[1000000]; int nmax2[1000000]; int d[1000010]; int p[1000010]; void calc(int v, int id, int nd) { bool changed = 0; if (id == nmax1[v]) { max1[v] = nd; } else if (id == nmax2[v]) { max2...
18
#include <bits/stdc++.h> using namespace std; const double PI = acos(-1.0); const int INF = 0x3f3f3f3f; const long long LINF = 0x3f3f3f3f3f3f3f3f; const int N = 1e5 + 9; const int shift = 1e3 + 9; const double Eps = 1e-7; int cnum[20000009]; int n, k, d; int main(void) { if (fopen("in", "r") != NULL) { freopen("i...
13
#include <bits/stdc++.h> using namespace std; int main() { int n, rslt, x1, x2, y1, y2; cin >> n; cin >> x1 >> y1 >> x2 >> y2; int a = abs(x2 - x1); int b = abs(y2 - y1); if (b == n || a == n) rslt = x1 + x2 + y1 + y2; else rslt = a + b; cout << min(rslt, 4 * n - rslt); }
5
#include <bits/stdc++.h> using namespace std; const int MAXN = 100005; const int MAXQ = 200005; int rx[MAXQ], ry[MAXQ]; int qx[MAXQ][2], qy[MAXQ][2]; int res[MAXQ]; struct node { int l, r, m, v; } s[MAXN << 2]; void push_up(int n) { s[n].v = min(s[n << 1].v, s[n << 1 | 1].v); } void build(int l, int r, int n) { int...
16
#include <bits/stdc++.h> using namespace std; long long ask(long long x, int y, long long k) { int now = 0; long long ans = 0, t = 1; while (y < 0) { y++; t *= 2; } while (x) { if (x & 1) ans += t; now++; if (ans > k || t > k) return 0; if (now > y) t *= 2; x /= 2; } return 1; ...
12
#include <bits/stdc++.h> using namespace std; int main() { int n, m; cin >> n >> m; vector<int> w(n), b(m); for (int i = 0; i < n; ++i) cin >> w[i]; vector<int> was(n); vector<int> v; for (int i = 0; i < m; ++i) { cin >> b[i]; --b[i]; if (!was[b[i]]) v.push_back(b[i]); was[b[i]] = 1; } ...
8
#include <bits/stdc++.h> using namespace std; char s[101]; bool f[101]; int main() { int n, d, ans = 0, cnt = 0; scanf("%d%d", &n, &d); for (int i = 1; i <= d; i++) { scanf("%s", s + 1); for (int j = 1; j <= n; j++) if (s[j] == '0') f[i] = 1; } for (int i = 1; i <= d; i++) if (!f[i]) { ...
0
#include <bits/stdc++.h> using namespace std; int n, a, m; struct koor { int i, ch; }; map<int, bool> pizda; bool cmp(koor a, koor b) { return a.ch < b.ch; } koor t; int z; vector<koor> q; int main() { ios_base::sync_with_stdio(false), cout.tie(), cin.tie(); cin >> n; for (int i = 1; i <= n; ++i) pizda[i] = fal...
4
#include <bits/stdc++.h> using namespace std; int numclouds; struct node { node *parent; bool change; int subsize; node() : parent(this), change(false), subsize(1) {} void moveUp() { if (parent != this) { parent->moveUp(); change ^= parent->change; parent = parent->parent; } } }; b...
20
#include <bits/stdc++.h> using namespace std; long long n, m, dis[105], vis[105], mx[105], mn[105], flag = 1; long long tot, head[105], nx[30005], to[30005], gc[30005], lc[30005]; void jia(long long aa, long long bb, long long cc, long long dd) { tot++; nx[tot] = head[aa]; to[tot] = bb; gc[tot] = cc; lc[tot] ...
13
#include <bits/stdc++.h> using namespace std; long long gcd(long long b, long long s) { return (s != 0) ? gcd(s, b % s) : b; } long long Pow(long long a, long long b, long long c) { if (b == 0) return 1 % c; else if (b == 1) return a % c; else { long long A = Pow(a, b / 2, c); A = (A * A) % c; ...
13
#include <bits/stdc++.h> using namespace std; template <class T> T Bitcnt(T a) { int sum = 0; while (a) { if (a & 1) sum++; a /= 2; } return sum; } template <class T> T Max3(T a, T b, T c) { return max(a, max(b, c)); } template <class T> T Lcm(T a, T b) { T tmp = __gcd(a, b); return (a / tmp) * b;...
12
#include <bits/stdc++.h> using namespace std; int n, m, q, g[13][13], lca[13][13]; long long dp[1 << 13][13]; long long f(int s, int root) { s &= ~(1 << root); if (s == 0) return 1; if (dp[s][root] != -1) return dp[s][root]; long long res = 0; int must = 0; for (int i = (0); i < (n); i++) if (s & 1 << i...
18
#include <bits/stdc++.h> using namespace std; const double eps = 1e-4; double f[1100][1100]; double mp[1100][1100], g[1100][1100]; int n, m, X, Y; void gauss(int row) { for (register int i = 1; i <= m; i++) for (register int j = i + 1; j <= m; j++) { if (mp[j][i] == 0) break; double temp = mp[j][i] / ...
16
#include <bits/stdc++.h> using namespace std; const int N = 503; int n, m, mod, F[N][N], G[N][N], C[N][N], f[N], g[N]; void qmo(int &x) { x += x >> 31 & mod; } int main() { scanf("%d%d%d", &n, &m, &mod); for (int i = 0; i <= n; ++i) for (int j = *C[i] = 1; j <= i; ++j) qmo(C[i][j] = C[i - 1][j] + C[i - 1]...
23
#include <bits/stdc++.h> using namespace std; const int maxn = 300005; struct node { int s, t, no; long long ans; } e[maxn]; int n, q; long long f[maxn]; int a[maxn], len; bool cmp(node x, node y) { return x.t < y.t; } long long baoli(node x) { long long ans = 0; for (int i = x.s; i <= n; i += x.t) ans += a[i];...
13
#include <bits/stdc++.h> using namespace std; void input() { freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); long long t; cin >> t; while (t--) { long long n; cin >> n; long long x = (n + 3) / 4; for (int...
2
#include<iostream> #include<cstdio> #include<set> #include<map> #include<vector> #include<cstring> #include<string> #include<cstdlib> #include<algorithm> #include<queue> #include<iomanip> #include<stack> #include<cmath> using namespace std; #ifndef POJ #define Cpp11 #endif #ifdef Cpp11 #define _for(i,a,b)...
11
#include <bits/stdc++.h> using namespace std; const int maxn = 2e5 + 14; int n, a[maxn], d[maxn]; bool mark[maxn]; vector<int> g[maxn]; int get(int col) { fill(d, d + n, 0); queue<int> leaves; fill(mark, mark + n, false); for (int i = 0; i < n; i++) { d[i] = g[i].size(); if (d[i] <= 1) { mark[i] =...
22
#include <bits/stdc++.h> using namespace std; long long N, M; long long myPow(long long a, long long b) { long long ret = 1; while (b > 0) { if (b % 2 == 1) { ret *= a; ret %= 1000000007; } a *= a; a %= 1000000007; b /= 2; } return ret; } int main() { ios::sync_with_stdio(0); ...
7
#include <bits/stdc++.h> using namespace std; int n; int a[100005]; int main() { cin >> n; for (int i = 1; i <= n; i++) { scanf("%d", a + i); if (a[i] >= 0) a[i] = -a[i] - 1; } if (n % 2) { int ind = 1; int _min = 2; for (int i = 1; i <= n; i++) if (a[i] != -1 && _min > a[i]) { ...
7
#include <bits/stdc++.h> int main() { int n, s; std::cin >> n >> s; std::vector<int> deg(n); for (int i = 0; i + 1 < n; i++) { int u, v; std::cin >> u >> v; u--, v--; deg[u]++; deg[v]++; } int leaves = 0; for (int i = 0; i < n; i++) { leaves += deg[i] == 1; } std::cout << std::...
9
#include <bits/stdc++.h> using namespace std; int long long n; int long long x, y; inline int long long u(int long long t) { int long long h = t - x + 1; if (h > 0) return h * h; else return 0; } inline int long long r(int long long t) { int long long h = t - n + y; if (h > 0) return h * h; else...
10
#include <bits/stdc++.h> using namespace std; long long GCD(long long u, long long v) { while (v != 0) { long long r = u % v; u = v; v = r; } return u; }; double lng(double a, double b, double c, double d) { double s; s = sqrt((a - c) * (a - c) + (b - d) * (b - d)); return s; }; struct name { ...
10
#include <bits/stdc++.h> using namespace std; const int N = 1e5 + 10, M = 0, Z = 1e9 + 7, ms63 = 0x3f3f3f3f; int n, q; pair<double, double> a[1 << 18]; pair<double, double> merge(pair<double, double> x, pair<double, double> y) { double l1 = x.first; double r1 = x.second; double l2 = y.first; double r2 = y.secon...
17
#include <bits/stdc++.h> using namespace std; const int SIZE = 105; char ch[SIZE]; int n, k; int main() { while (cin >> n >> k) { scanf("%s", ch); int len = n; if (k > len / 2) { for (int i = k; i < len; i++) { puts("RIGHT"); } for (int i = len - 1; i >= 0; i--) { printf(...
1
#include <bits/stdc++.h> long long n, m, S, T; long long head[2001], nxt[200001], b[200001], v[200001], k; long long dis1[2001], dis2[2001]; long long q[1000001], h, t, orig[2001], p[2001]; long long cnt[2001][2001]; long long sum[2001][2001], f[2001][2001], g[2001][2001]; long long last1[2001], last2[2001]; bool inq[2...
21
#include <bits/stdc++.h> using namespace std; template <class T> bool umin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } template <class T> bool umax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } int a[200009], b[200009], ans; int mod(long long x) { return (x % 99824435...
8
#include <bits/stdc++.h> bool notsame(char* c, int len) { bool a = false; for (int i = 0; i < len - 1; ++i) { if (c[i] != c[i + 1]) a = true; } return a; } bool notpresent(int* nums, int ele, int idx) { bool a = true; for (int i = 0; i < idx; i++) { if (nums[i] == ele) a = false; } return a; } i...
5
#include <bits/stdc++.h> using namespace std; char s[200010]; int ans[200010]; int main() { int n, a, b, k, i, j, l = 0, falg; cin >> n >> a >> b >> k; cin >> s; for (i = 0; i < n; i++) { if (s[i] == '0') { falg = 0; for (j = i; j <= i + b - 1; j++) { if (j == n) { falg = 1; ...
9
#include <bits/stdc++.h> using namespace std; const int oo = 1e9 + 5; const int MOD = 998244353; const long long ooll = 3e18; const int N = 5e3 + 5; int mn[N], p[N]; void pre() { mn[0] = 0; for (int i = 1; i < N; ++i) { int dep = 0, j = i; while (i > 1) { i >>= 1; dep++; } i = j; mn[...
14
#include <bits/stdc++.h> int main() { int a1, a2, a3; scanf("%d %d %d", &a1, &a2, &a3); int b1, b2, b3; scanf("%d %d %d", &b1, &b2, &b3); int n; scanf("%d", &n); int cups = a1 + a2 + a3; int medals = b1 + b2 + b3; int num_shelfs = ceil(cups / 5.0) + ceil(medals / 10.0); if (num_shelfs <= n) prin...
0
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; vector<int> a(n); for (int i = 0; i < n; i++) cin >> a[i]; set<int> dif; for (int i = 1; i < n; i++) dif.emplace(abs(a[i] - a[i - 1])); if (int(dif.size()) > 2 or dif.count(0) == 1 or ...
9
#include <bits/stdc++.h> using namespace std; long long int gcd(long long int x, long long int y) { return y ? gcd(y, x % y) : x; } long long int x, y; void cal(long long int x, long long int y) { if (x == 1 && y == 1) return; if (x == 1) { printf("%I64dB", y - 1); return; } if (y == 1) { printf("...
16
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef int (*itoi)(int); typedef int (*iitoi)(int, int); typedef int (*iiitoi)(int, int, int); typedef ll (*ltol)(ll); typedef ll (*lltol)(ll, ll); typedef ll (*llltol)(ll, ll, ll); const long double PI = acos(0) * 2; const int INF = 0x3f2f1f0f; const...
13
#include <bits/stdc++.h> using namespace std; template <class T> bool setmin(T &a, T b) { if (b < a) { a = b; return true; } else return false; } template <class T> bool setmax(T &a, T b) { if (b > a) { a = b; return true; } else return false; } const int MAXN = 5050; int a[MAXN]; int g[...
10
#include <bits/stdc++.h> using namespace std; signed main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); long long t; t = 1; while (t--) { long long n; cin >> n; string s; long long x; char y; vector<long long> v1{-1000000007}, v2{1000000007}, v3{-1000000007}, ...
6
#include <bits/stdc++.h> int main() { int a, b, n; scanf("%d %d %d", &a, &b, &n); if (n % 2) { for (int i = 0; i < a - (n / 2 + 1); i++) printf("0"); for (int i = 0; i < n / 2 + 1; i++) printf("01"); for (int i = 0; i < b - (n / 2 + 1); i++) printf("1"); } else { if (a >= n / 2 + 1) { for ...
5
#include <bits/stdc++.h> using namespace std; template <typename T> void read(T &x) { x = 0; char c = getchar(); bool p = 0; for (; c < '0' || c > '9'; c = getchar()) if (c == '-') p = 1; for (; c >= '0' && c <= '9'; c = getchar()) x = (x << 3) + (x << 1) + (c ^ 48); if (p) x = -x; } const int N = 1...
18
#include <bits/stdc++.h> using namespace std; int pct(int x) { return __builtin_popcount(x); } int pct(long long x) { return __builtin_popcountll(x); } int bt(int x) { return 31 - __builtin_clz(x); } int bt(long long x) { return 63 - __builtin_clzll(x); } int cdiv(int a, int b) { return a / b + !(a < 0 || a % b == 0); ...
20
#include <bits/stdc++.h> using namespace std; const int N = 1e6 + 5; vector<long long int> city; vector<long long int> towers; int main() { int n, m; cin >> n >> m; for (int i = 0; i < n; i++) { int a; cin >> a; city.push_back(a); } for (int i = 0; i < m; i++) { int a; cin >> a; towers...
7