제출 #953174

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
953174	2024-03-25 15:25:16	asdasdqwer	Paths (BOI18_paths)	C++14	100 / 100	382 ms	97496 KiB

paths

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 300000;
int n,m,k;
vector<vector<int>> g;
int c[MAXN];
long long res = 0;
long long dp[MAXN][32];
void edit(int node, int num) {
    for (int i=0;i<(1<<k);i++) {
        if (((1<<c[node])&i) == 0) continue;
        if (__builtin_popcount(i) != num) continue;
        for (int x:g[node]) {
            dp[node][i] += dp[x][(i ^ (1<<c[node]))];
        }
    }
}
void all(int num) {
    for (int i=0;i<n;i++) {
        edit(i, num);
    }
}
signed main() {
 
 
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• Subtask 1: 23 / 23
• Subtask 2: 20 / 20
• Subtask 3: 27 / 27
• Subtask 4: 30 / 30