이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
short dis[5001][5001][2];
vector <int> v[5001];
queue <pair<int,int>> qu;
int n,m,k,w,a,b,d;
void bfs(int x){
for(int i=1;i<=n;i++) dis[x][i][0]=dis[x][i][1]=1e4+1;
dis[x][x][0]=0;
qu.push({0,x});
while(qu.size()!=0){
auto[mydis,i]=qu.front();
qu.pop();
if(mydis>dis[x][i][mydis%2]) continue;
for(int j:v[i]){
w=mydis+1;
if(dis[x][j][w%2]>w){
dis[x][j][w%2]=w;
qu.push({w,j});
}
}
}
return;
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
cin>>n>>m>>k;
for(int i=0;i<m;i++){
cin>>a>>b;
v[a].push_back(b);
v[b].push_back(a);
}
//bfs();
for(int i=1;i<=n;i++) bfs(i);
while(k--){
cin>>a>>b>>d;
if(a==b&&d!=0&&v[a].size()==0) cout<<"NIE"<<endl;
else if(dis[a][b][d%2]<=d&&dis[a][b][d%2]!=1e4+1) cout<<"TAK"<<endl;
else cout<<"NIE"<<endl;
}
return 0;
}
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