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  1. #include <stdio.h>
  2. #define SIZE 5
  3. double stack[SIZE];
  4. int sp;//ポインタ
  5.  
  6. void push(double x){
  7. 	if(sp>=SIZE){
  8. 		printf("満タン\n");
  9. 	}else{
  10. 		stack[sp]=x;
  11. 		sp++;
  12. 	}
  13. }
  14.  
  15. double pop(void){
  16. 	if(sp<=0){
  17. 		printf("空\n");
  18. 		return 0;
  19. 	}else{
  20. 		return stack[--sp];
  21. 	}
  22. }
  23.  
  24. int main(void) {
  25.  
  26. 	double c1,c2;
  27. 	push(1);
  28. 	push(2);
  29. 	//+
  30. 	c2=pop();
  31. 	c1=pop();
  32. 	printf("%lf+%lf=",c1,c2);
  33. 	push(c1+c2);
  34. 	printf("%lf",pop());
  35. 	return 0;
  36. }
  37.  
Success #stdin #stdout 0s 5308KB
comments (?)
stdin 
Standard input is empty
stdout 
1.000000+2.000000=3.000000
https://ideone.com/eDy7Jj
language:
C99 (gcc 8.3)
created:
8 days ago
visibility:
public

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