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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.  
  5. int a,b,c;
  6.  
  7. scanf("%d %d %d",&a,&b,&c);
  8.  
  9. switch(c)
  10. {
  11. case 1:
  12. printf("%d+%d=%d\n",a,b,a+b);
  13. break;
  14. case 2:
  15. printf("%d-%d=%d\n",a,b,a-b);
  16. break;
  17. case 3:
  18. printf("%d*%d=%d\n",a,b,a*b);
  19. break;
  20. case 4:
  21. printf("%d÷%d=%d余り%d\n",a,b,a/b,a%b);
  22. break;
  23. }
  24. return 0;
  25. }
  26.  
Success #stdin #stdout 0s 5304KB
stdin
200 5 3
stdout
200*5=1000