제출 #991581

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
991581	2024-06-02 14:09:17	snpmrnhlol	Sprinkler (JOI22_sprinkler)	C++17	38 / 100	427 ms	60756 KiB

sprinkler

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#include<bits/stdc++.h>
using namespace std;
const int N = 2e5;
const int D = 40;
vector <int> e[N];
vector <int> path;
int pr[N];
int bonus[N][D];
int v[N];
void dfs(int node, int p){
    pr[node] = p;
    for(auto i:e[node]){
        if(i == p)continue;
        dfs(i, node);
    }
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n,mod;
    cin>>n>>mod;
    for(int i = 0;i < n - 1;i++){
        int u,w;
        cin>>u>>w;
        e[u - 1].push_back(w - 1);
        e[w - 1].push_back(u - 1);
    }
    for(int i = 0;i < n;i++){
        cin>>v[i];
 
 
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컴파일 시 표준 에러 (stderr) 메시지

sprinkler.cpp: In function 'int main()':
sprinkler.cpp:32:25: warning: iteration 40 invokes undefined behavior [-Waggressive-loop-optimizations]
   32 |             bonus[i][j] = 1;
      |             ~~~~~~~~~~~~^~~
sprinkler.cpp:31:25: note: within this loop
   31 |         for(int j = 0;j <= D;j++){
      |                       ~~^~~~

• Subtask 1: 0 / 3
• Subtask 2: 9 / 9
• Subtask 3: 29 / 29
• Subtask 4: 0 / 12
• Subtask 5: 0 / 30
• Subtask 6: 0 / 17