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  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.  
  10. int main(void) {
  11.     sp = 0;
  12.     int resp, data;
  13.     int i;
  14.  
  15.     while(1) {
  16.         printf("1:push 2:pop 0:end: ");
  17.         scanf("%d", &resp);
  18.         if(!resp) break;
  19.  
  20.         switch(resp) {
  21.             case 1:
  22.                 printf("push: ");
  23.                 scanf("%d", &data);
  24.                 push(data);
  25.                 break;
  26.             case 2:
  27.                 printf("pop = %d\n", pop());
  28.                 break;
  29.         }
  30.         printf("sp=%d\n", sp);
  31.     }
  32.  
  33.     for(i = 0; i < sp; i++) {
  34.         printf("stack[%d]=%d\n", i, stack[i]);
  35.     }
  36.     return 0;
  37. }
  38.  
  39. void push(int value) {
  40.     if(sp >= SIZE) {
  41.         printf("ipaidayo\n");
  42.     } else {
  43.         stack[sp++] = value;
  44.     }
  45. }
  46.  
  47. int pop(void) {
  48.     if(sp <= 0) {
  49.         printf("karadayo\n");
  50.         return 0;
  51.     } else {
  52.         return stack[--sp];
  53.     }
  54. }
  55.  
  56.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
1
2
2
2
1
2
0
stdout 
1:push 2:pop 0:end: push: sp=1
1:push 2:pop 0:end: pop = 2
sp=0
1:push 2:pop 0:end: karadayo
pop = 0
sp=0
1:push 2:pop 0:end: push: sp=1
1:push 2:pop 0:end: stack[0]=2
https://ideone.com/8nfHaq
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

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