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  1. #include <stdio.h>
  2.  
  3. main()
  4. {
  5. int a, b, c, d;
  6. scanf("%d%d%d", &a, &b, &c);
  7. switch (c) {
  8. case 0:
  9. d = a + b; break;
  10. case 1:
  11. d = a - b; break;
  12. case 2:
  13. d = a * b; break;
  14. case 3:
  15. d = a / b; break;
  16. case 4:
  17. d = a % b; break;
  18. default:
  19. printf("invalid c %d\n", c);
  20. d = 0;
  21. }
  22. printf("%d\n", d);
  23. }
Success #stdin #stdout 0s 5320KB
stdin
2 3 5
stdout
invalid c 5
0