Geeksforgeeks Solution For " Decimal to any base conversion "

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Problem :- Given a decimal number and the base to which it should be converted. Convert the given number to the given base.

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Solution :-

#include<bits/stdc++.h>
using namespace std;
char value(int num)
{
    if(num>=0 && num <=9)
        return char(num+'0');
    else
        return char(num-10+'A');
}
string from_decimal(string &s ,int base,int num)
{
    while(num>0)
    {
        s.push_back(value(num%base));
        num/=base;
    }
    reverse(s.begin(),s.end());
    return s;
}
int main()
{
    int t;
    cin>>t;
    while(t--)
    {
    int n,base;
    cin>>base>>n;
    string s="";
    cout << from_decimal(s,base,n);
    cout<<endl;
    }
}

Output:-