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  1. #include <stdio.h>
  2.  
  3. int isHole[1000005];
  4.  
  5. int main(){
  6.     int n, m, k;
  7.     scanf("%d%d%d", &n, &m, &k);
  8.     for(int i=0; i<m; i++){
  9.         int h;
  10.         scanf("%d", &h);
  11.         isHole[h] = 1;
  12.     }
  13.     int pos = 1;
  14.     for(int i=0; i<k; i++){
  15.         int u, v;
  16.         scanf("%d%d", &u, &v);
  17.         if(u == pos && (!isHole[u])) pos = v;
  18.         else if(v == pos && (!isHole[v])) pos = u;
  19.     }
  20.     printf("%d", pos);
  21.     return 0;
  22. }
Success #stdin #stdout 0s 19144KB
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https://ideone.com/YD7s4S
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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