# | TimeUTC-0 | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
435292 | Maqsut_03 | Keys (IOI21_keys) | C++17 | 105 ms | 17192 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
using namespace std;
const int N = 2222;
vector<pair<int, int> > g[N];
int n, m;
std::vector<int> find_reachable(std::vector<int> r, std::vector<int> u, std::vector<int> v, std::vector<int> c)
{
std::vector<int> ans(r.size(), 1);
n = r.size();
m = u.size();
for (int i=0; i<m; i++)
{
g[v[i]].push_back({u[i], c[i]});
g[u[i]].push_back({v[i], c[i]});
}
stack<int> s;
bool used[N], ka[N];
int q, k[N];
for (int i=0; i<n; i++)
{
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