#include<stdio.h>
#define SIZE 5
int stack[SIZE];
int sp;
void push(int value);
int pop(void);
void display(void);
int main(void)
{
sp = 0;
int resp, data;
while(1){
printf("1:push 2:pop 0:end : ");
if(!resp) break;
switch(resp){
push( data );
break;
case 2: printf( "pop : %d ", pop
() ); break;
}
}
display();
return 0;
}
void push(int value)
{
if(sp >= SIZE){
}else{
stack[sp++] = value;
}
}
int pop(void)
{
if(sp <= 0){
printf("スタックが空で取り出せませんでした\n"); return 0;
}else{
return stack[--sp];
}
}
void display(void){
for(int i=0; i<sp; i++){
printf("stack[%d]=%d \n", i
, stack
[i
]); }
}
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