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  1. #include <stdio.h>
  2. #define SIZE 5
  3. int stack[SIZE];
  4. int sp;//ポインタ
  5.  
  6. void push(int x){
  7. 	if(sp>=SIZE){
  8. 		printf("満タン\n");
  9. 	}else{
  10. 		stack[sp]=x;
  11. 		sp++;
  12. 	}
  13. }
  14.  
  15. int 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. 	push(1);
  26. 	push(2);
  27. 	push(3);
  28. 	pop();
  29. 	for(int i=0;i<sp;i++){
  30. 		printf("stack[%d]=%d\n",i,stack[i]);
  31. 	}
  32. 	return 0;
  33. }
  34.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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110
stdout
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stack[0]=1
stack[1]=2
https://ideone.com/3gLU3f
stack
language:
C99 (gcc 8.3)
created:
13 days ago
visibility:
public

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