09/03/14 21:09:19
>>220 終了はCtrl+Z
#include<stdio.h>
#include<stdlib.h>
int s[99],p;
void push(int n){s[p++]=n;}
int pop(void){return s[--p];}
int main(){
char b[99];
for(;scanf("%98s",b)==1;){
switch(*b){
case'+':push(pop()+pop());break;
case'-':push(pop()-pop());break;
case'*':push(pop()*pop());break;
case'/':{int t=pop();push(pop()/t);}break;
default:push(atoi(b));
}
printf("%d\n",s[p-1]);
}
}