Submission #793347

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
7933472023-07-25 18:09:49Valaki2007 (CEOI14_007)C++14
0 / 100
176 ms17608 KiB
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int maxn = 2e5;
int n, m;
vector<int> graph[1 + maxn];
int g, s, a, b;
vector<int> dg, ds, da, db;
vector<int> bfs(int start) {
vector<int> res(1 + n, -1);
res[start] = 0;
queue<int> q;
q.push(start);
while(!q.empty()) {
int cur = q.front();
q.pop();
for(int nei : graph[cur]) {
if(res[nei] == -1) {
res[nei] = res[cur] + 1;
q.push(nei);
}
}
}
return res;
}
 
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