[Cpp-Programming] Re: problem during runtime

Integer is overflowing. take double and modified ur code accordingly.

On Jun 3, 2:02 pm, Deepak <deepakkushwah2...@gmail.com> wrote:
> hi
> there is a problem of finding the factorial of no upto 100 now we
> don't have any variable to store that amount of data
> so i'm considering an array of 200 elements inwhich each element
> contains the digits of final ans
> for example   720    will be stored as a[0]=0     a[1]=2     a[2]=7
> given below  is it's program  but it is not giving the correct ans
> after 10
> help me if u can find any bug in this program
>
> #include<iostream>
> using namespace std;
> int main()
> {
>     cout<<"enter the no of test cases:"<<endl;
>     int t;
>     int num;
>     cin>>t;
>      int a[200];             //array to accomodate the digits of the
> factorial
>      for(int i=0;i<t;i++)         //this loop will run for all the
> test cases
>      {
>              a[0]=1;                     //initialising the array with
> a[0]=1 and rest all the elements 0
>           for(int i=1;i<=199;i++)
>              {
>              a[i]=0;
>              }
>            int temp=0;
>             int m=1;                   //carry the no. of elements in
> the array occupied during factorial computation
>             cout<<"enter the no"<<endl;
>            cin>>num;                 // the no. of which we have to
> find the factorial
>            for(int j=1;j<=num;j++)
>            {
>                    for(int k=0;;k++)
>                    {
>                           int x=a[k]*j+temp;
>                           a[k]=x%10;
>                           temp=x/10;
>                           if(temp==0 && a[k+1]==0) break;
>
>                           if(a[k+1]==0)m++;
>                    }
>            }
>            for(int i=m-1;i>=0;i--)
>            {
>                    cout<<a[i];
>            }
>            cout<<endl;
>      }
>     system("pause");
>
>
>
>
>
>
>
> }

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