can anyone tell why my solution encounters a run time error, despite it runs fine on my system?

Question ishttp://www.codechef.com/problems/FCTRL2
Solution— http://www.codechef.com/viewsolution/1760788
Here i have copied it ----------------------------------------------------------------------------

#include<iostream>
#include<malloc.h>
#define MAX_SIZE 80
    using namespace std;

    int current;
    void proMul(int* a, int num)
    {
     int tempc=0;
     int temp=0;
     while(tempc<=(current-1))
     {
            int x= (*(a+tempc)*num)+temp;

            *(a+tempc)= x%10;
            temp= x/10;   
            tempc++;   
                     
                     }
     tempc--;
 
     while(temp>0)
     {
              tempc++;
              *(a+tempc) = temp%10;
              temp/=10;
              }
     current = tempc+1;

 
     }
 
 
    void printa(int* ans)
    {
     int temp= current-1;
     while(temp>=0)
     {
        cout<<*(ans+temp);
        temp--;
                             }
        cout<<endl;
 
 
 
     }

    void fac(int num)
    {
       //  int ans[MAX_SIZE]={0};
           int i;
           int* ans= (int*) (malloc(MAX_SIZE* sizeof(int)));
       for(i=0;i<MAX_SIZE;i++)
        *(ans+i) = 0;
         *ans= 1;
         current=1;
         while(num>1)
         {           proMul(ans, num);
                     num--;
         }
         printa(ans);
     
    }


    int main()
    {
        int T;
        cin>>T;
        int x;
        while(T--)
        {
                  cin>>x;    
                  fac(x);
                 
                  }
        return 0;
    }

on ideone (http://ideone.com/StqIb0) it also failed with input

3
100
100
100

:wink:

@betlista, yeah, but it however runs for the the first two inputs, and then encounters run time error, however the same problem doesn’t arise for small numbers. I can’t find the error.

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