C++ Multiply 2 Overflow Numbers

This program will allow you to input 2 large numbers and multiple them using C++

   *Featured code submitted and Created by 🇻🇳GNAOH🇻🇳.

C++

#include <iostream>

#include <cstring>

using namespace std;

char n1[100],n2[100];int r[200];

int main()

{

    int n;

    cin>>n1>>n2;cout<<"  "<<n1<<" * "<<n2<<endl<<"= ";

    strrev(n1);strrev(n2);

    for(int i=0;i<strlen(n2);i++)

    {

        for(int j=0;j<strlen(n1);j++)

        {

            n=(n1[j]-48)*(n2[i]-48);

            r[i+j]+=n;

            if(r[i+j]>=10)

            {

                r[i+j+1]+=r[i+j]/10;

                r[j+i]=r[i+j]%10;

            }

        }

    }

    for(int i = strlen(n1) + strlen(n2) - 1 ; i >= 0;i--)

    {

        if(i==strlen(n1) + strlen(n2) - 1 && r[i]==0)

            continue;

        cout<<r[i];

    }

}

Click here to run this code

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