제출 #959609

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
959609	2024-04-08 13:42:51	Blagoj	Network (BOI15_net)	C++17	100 / 100	376 ms	57968 KiB

net

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#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
#define all(x) (x).begin(), (x).end()
const int mxn = 5e5 + 10;
vector<int> g[mxn], leafs;
void dfs(int cur, int par) {
    bool leaf = 1;
    for (auto x : g[cur]) {
        if (x == par) continue;
        leaf = 0;
        dfs(x, cur);
    }
    if (leaf) leafs.push_back(cur);
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;
    cin >> n;
    for (int i = 0; i < n - 1; i++) {
        int f, t;
        cin >> f >> t;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

net.cpp: In function 'int main()':
net.cpp:36:8: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized]
   36 |     dfs(root, root);
      |     ~~~^~~~~~~~~~~~

• Subtask 1: 18 / 18
• Subtask 2: 45 / 45
• Subtask 3: 37 / 37