Submission #1109887

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1109887	2024-11-08 02:40:36	vjudge1	Magneti (COCI21_magneti)	C++14	110 / 110	33 ms	12872 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAXN = 55, MAXL = 1e4 + 505, Mod = 1e9 + 7;
inline void UP(int &x, ll y) {x = (y + x) % Mod;}
int n, l, w[MAXN];
int ans;
int f[MAXN][MAXN][MAXL];
int fac[MAXL], ifc[MAXL], inv[MAXL];
void Fac() {
    fac[0] = ifc[0] = fac[1] = ifc[1] = inv[1] = 1;
    for (int i = 2; i < MAXL; ++i) {
        fac[i] = 1LL * fac[i - 1] * i % Mod;
        inv[i] = -1LL * inv[Mod % i] * (Mod / i) % Mod;
        ifc[i] = 1LL * ifc[i - 1] * inv[i] % Mod;
    }
    return ;
}
inline int C(int n, int m) {
    if (n < 0 || m < 0 || m > n) return 0;
    return 1LL * fac[n] * ifc[m] % Mod * ifc[n - m] % Mod;
}
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 50 / 50