about loop

Question

how to make the result of loop like this
1 1
1 2
2 3
2 4
3 5
3 6
thanks for your help☺

Answer 1

#include<iostream>

using namespace std;

int main (){
int a = 1,b=1;

while (b<=6){
cout<<"\n"<<a<<b;
++b;
cout<<"\n"<<a<<b;
++a;
++b;
}

return 0;
}

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