#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N=2e5+5, mod=1e9+7;
int n;
#include "grader.h"
vector<int> d , g[N];
void dfs(int s,int p) {
d.push_back(s);
for(auto i: g[s]) {
if(i == p) {
continue;
}
dfs(i,s);
}
}
int findEgg(int M , vector<pair<int , int>> a) {
d.clear();
n = M;
for(int i=0;i<=n;i++) {
g[i].clear();
}
for(int i=0;i<(int)a.size();i++) {
g[a[i].first].push_back(a[i].second);
g[a[i].second].push_back(a[i].first);
}
dfs(1 , 1);
int l = 0 , r = n - 1 , best = -1;
while(l <= r) {
int mid = (l + r)/2;
vector<int> q;
for(int i=0;i<=mid;i++) {
q.push_back(d[i]);
}
if(query(q) >= 1) {
r = mid - 1;
best = mid;
}
else {
l = mid + 1;
}
}
return best;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
5 ms |
10000 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
6 ms |
10020 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
7 ms |
10056 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |