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  1. #include<stdio.h>
  2. #include<math.h>
  3.  
  4. int main()
  5. {
  6. long long int n;
  7. long long int t,chef[1000],chef2[1500],boy[1500],boy2[1500],count=0,cplan,bcut,i,j;
  8. scanf(" %lld\n",&t);
  9. while(t--)
  10. {
  11. scanf(" %lld %lld %lld\n",&n,&cplan,&bcut);
  12.  
  13.  
  14. 		for(i=0;i<cplan;i++)
  15. 			{
  16. 			scanf(" %lld %lld\n",&chef[i],&chef2[i]);
  17.  
  18. 			}
  19. 		for(i=0;i<bcut;i++)
  20. 			{
  21. 			scanf(" %lld %lld\n",&boy[i],&boy2[i]);
  22.  
  23. 			}
  24.            for(i=0;i<bcut;i++)
  25.                 {
  26.                   for(j=0;j<cplan;j++)
  27.                        { 
  28.                           if(chef[j]==boy[i])
  29.                             count++;
  30.                           if(chef2[j]==boy2[i])
  31.                           count++;
  32.                        }
  33.                     if(count!=2)
  34.                          { 
  35.                     printf("No\n");
  36.                      count=50;
  37.                    break;
  38.                          }
  39.                    count=0;
  40.                }
  41.               if(count!=50)
  42.              printf("Yes\n");
  43. }
  44. return 0;}
Success #stdin #stdout 0s 2292KB
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https://ideone.com/cnM7Ac
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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