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  1. #include <stdio.h>
  2.  
  3. int money(int t[],int d[],int n,int k){
  4. 	int i=0,cost=0;
  5.  
  6. 	for(i=0;i<n;i++){
  7. 		if(k<=t[i]){
  8. 			cost+=(t[i]-k)*d[i];
  9. 			k=0;
  10. 		}
  11. 		else
  12. 			k-=t[i];
  13. 	}
  14.  
  15. 	return cost;	
  16. }
  17.  
  18. int main(void) {
  19. 	int tc=0,n=0,k=0,t[10],d[10],i=0;
  20.  
  21. 	scanf("%d",&tc);
  22. 	while(tc--){
  23. 		scanf("%d %d",&n,&k);
  24. 		for(i=0;i<n;i++)
  25. 			scanf("%d %d",&t[i],&d[i]);
  26. 		printf("%d\n",money(t,d,n,k));
  27. 	}
  28. 	return 0;
  29. }
  30.  
Success #stdin #stdout 0s 9432KB
comments (?)
stdin
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3
2 2
2 1
2 3
2 2
1 2
2 3
3 0
1 2
2 4
10 10
stdout
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6
3
110
https://ideone.com/mKcfOV
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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