Binary Exponentiation | Number Theory in cpp
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
ll power(ll base,ll pow)
{
if(base==0)return 0;
ll res=1;
while(pow)
{
if(pow%2)
{
res*=base;
pow--;
}
else
{
base*=base;
pow/=2;
}
}
return res;
}
int main()
{
ll t,n,m;
cin>>t;
while(t--)
{
cin>>n>>m;
cout<<power(n,m)<<endl;
}
return 0;
}
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