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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(void){
  5. 	char op;
  6. 	int first, second;
  7.  
  8. 	printf("Enter operation\n");
  9. 	if(3 != scanf("%d %c %d", &first, &op, &second)){
  10. 		fprintf(stderr, "invalid input.");
  11. 		exit(EXIT_FAILURE);
  12. 	}
  13. 	if(op == '+'){
  14. 		int add = first + second;
  15. 		printf("Sum = %d\n",add);
  16. 	}
  17.  
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 2172KB
comments (?)
stdin
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1 + 2
stdout
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Enter operation
Sum = 3
https://ideone.com/RKj9B1
language:
C99 (gcc 8.3)
created:
7 years ago
visibility:
public

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