2021 牛客多校8 题解
A Ares, Toilet Ares
题意
略,模拟即可
#include <bits/stdc++.h> using namespace std; #define endl '\n' #define int ll typedef long long ll; const int mod = 4933; const int N = 1e6 + 7; ll a[N]; ll qkpow(ll a, ll b) { ll ans = 1; while (b) { if (b & 1) ans = ans * a % mod; a = a * a % mod; b >>= 1; } return ans; } ll getInv(ll a) { return qkpow(a, mod - 2); } signed main() { int n, m, k, ax, l; cin >> n >> m >> k >> ax >> l; int up = 1, down = 1, x, y, z; while (k--) { cin >> x >> y >> z; if(!x) continue; up = ((z - y) * up ) % mod; down = down * z % mod; } cout << (up + ax * down) * getInv(down) % mod << endl; return 0; }
E Rise of Shadows
既是闰年又是质数?
#include <bits/stdc++.h> using namespace std; void solve() { int n; cin >> n; cout << "no" << endl; } signed main() { ios::sync_with_stdio(false), cin.tie(0), cout.tie(0); int t; cin >> t; while (t--) solve(); return 0; }