Pattern in cpp/c Program

Pattern in c/cpp Program

 #include <iostream>

using namespace std;

int main() {

int n;

cin>>n;

int i=1;

while(i<=n){

int j=1;

while(j<=n){

char ch='A'+j-1;

cout<<ch<<" ";

j++;

}

cout<<endl;

i++;

}

}