fork download
copy 
  1. #include<stdio.h>
  2.  
  3. #define SIZE 5
  4. int stack[SIZE];
  5. int sp;
  6.  
  7. void push(int value);
  8. int pop(void);
  9. void display(void);
  10.  
  11. int main(void)
  12. {
  13.     sp = 0;
  14.     int resp, data;
  15.  
  16.     while(1){
  17.         printf("1：push　2:pop　0:end : ");
  18.         scanf("%d", &resp);
  19.  
  20.         if(!resp)  break;
  21.  
  22.         switch(resp){
  23.             case 1: printf("push : "); scanf("%d", &data);
  24.                     push( data );
  25.                     break;
  26.             case 2: printf( "pop : %d ", pop() );
  27.                     break;
  28.         }
  29.         printf("sp=%d\n", sp);
  30.     }
  31.     printf("\n");
  32. 	display();
  33.  
  34.     return 0;
  35. }
  36.  
  37. void push(int value)
  38. {
  39.     if(sp >= SIZE){
  40.         printf("スタックが満杯で入りませんでした\n");
  41.     }else{
  42.         stack[sp++] = value;
  43.     }
  44. }
  45.  
  46. int pop(void)
  47. {
  48.     if(sp <= 0){
  49.         printf("スタックが空で取り出せませんでした\n");
  50.         return 0;
  51.     }else{
  52.         return stack[--sp];
  53.     }
  54. }
  55.  
  56. void display(void){
  57.     for(int i=0; i<sp; i++){
  58.         printf("stack[%d]=%d \n", i, stack[i]);
  59.     }
  60. }
  61.  
Success #stdin #stdout 0s 5456KB
comments (?)
stdin
copy 
1  10  1  20  1  30  2  0
stdout
copy 
1：push　2:pop　0:end : push : sp=1
1：push　2:pop　0:end : push : sp=2
1：push　2:pop　0:end : push : sp=3
1：push　2:pop　0:end : pop : 30 sp=2
1：push　2:pop　0:end : 
stack[0]=10 
stack[1]=20
https://ideone.com/2q4ovb
Ex.1-1 Answer
language:
C (gcc 8.3)
created:
1 year ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!