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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int N, M;
  5. scanf("%d %d", &N, &M);
  6.  
  7. int brand[M][2], min = 10000;
  8. for(int i = 0; i < M; i++) {
  9. scanf("%d %d", &brand[i][0], &brand[i][1]);
  10. }
  11.  
  12. for(int i = 0; i < M; i++) {
  13. int PackageMoney = (N / 6) * brand[i][0];
  14. int EachMoney = (N % 6) * brand[i][1];
  15. if(N % 6 != 0) {
  16. PackageMoney += brand[i][0];
  17. }
  18. int WholeMoney = PackageMoney + EachMoney;
  19. min = (min > WholeMoney ? WholeMoney : min);
  20. }
  21.  
  22. printf("%d", min);
  23. return 0;
  24. }
  25.  
Success #stdin #stdout 0s 5276KB
stdin
15 1
100 40
stdout
420