how to write a program using nested while loops

[Maham Amjad]

please help me doing my assignmnet, I have to write a program using nested while loops which will show the ouput as follows
1
2 2
3 3 3
4 4 4 4
and using the same nested while loops a program that shows following output
1
2 3
4 5 6
7 8 9 10

[SamuelAdams]

int main ()
{
// insert code here
}

[eyenrique]

#include <iostream>
using std::cout;
using std::endl;


int main(){


int
        counter1=1,
        counter2=1;

while(counter1<=4){
        while(counter2<=counter1){
                cout<<counter1;
        counter2++;
        }//end inner while
        cout<<endl;
        counter2=1;
counter1++;
}//end outer loop while

return 0; //indicates successful termination
}//end main 

1
22
333
4444

#include <iostream>
using std::cout;
using std::endl;


int main(){


int
        counter1=1,
        counter2=1,
        counter3=0;

while(counter1<=4){
        while(counter2<=counter1){
                cout<<++counter3;
        counter2++;
        }//end inner while
        cout<<endl;
        counter2=1;
counter1++;
}//end outer loop while

return 0; //indicates successful termination
}//end main 

1
23
456
78910