lab 8 arry

#include<stdio.h>
#include<string.h>
#include<math.h>

int stack[50],top=-1;

void push(int v);
int pop();
int cal(char v);

int main(){
    int i=0,t;
    char s[128];
    printf("Enter: ");
    gets(s); fflush(stdin);
    while(i<strlen(s)){
    if(s[i]<='9'&&s[i]>='0'){
         push(s[i]-'0');
    }
    else{
        t=cal(s[i]);
    }
    i++;
   }
   i=0;

   printf("=%d",t);
    return 0;
}
void push(int v){
    if(top>50){
        printf("FULL\n");
    }
    top = top + 1 ;
    stack[top]= v;
}
int pop(){
    return stack[top--];
}
int cal(char v){
    int x,y,temp,k;
    y = pop();
    //printf("%d ",y);
    x = pop();
    //
    //printf("%d ",x);
    if(v=='+'){
        temp = x+y;
    }else if(v=='-'){
        temp = x-y;
    }else if(v=='*'){
        temp = x*y;
    }else if(v=='/'){
        temp = x/y;
    }else if(v=='%'){
        temp = x%y;
    }else if(v=='^'){
        temp = pow(x,y);
    }else{
        printf("empty\n");
    }
    push(temp);

    return temp;

}