Submission #563151

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
563151	2022-05-16 11:35:24	Aktan	Swapping Cities (APIO20_swap)	C++14	0 / 100	132 ms	19248 KiB

swap

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#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
#ifndef EVAL
#include "grader.cpp"
#endif
vector<int> e[100005];
int used[100005],mx=0;
bool h=0;
void dfs(int x,int p){
  if(h==1){
    return;
  }
  used[x]++;
  if(used[x]==2){
    h=1;
    return;
  }
  for(auto w : e[x]){
    if(used[w]<1 && w!=p){
      dfs(w,x);
    }
  }
}
void init(int N, int M, vector<int> U, vector<int> V, vector<int> W){
  for(int i=0;i<M;i++){
    e[U[i]].push_back(V[i]);
    e[V[i]].push_back(U[i]);
 
 
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• Subtask 6: 0 / 27