How to make the following pattern

Question

*
**
***
****
*****

Answer 1

#include <iostream>
using namespace std;

int main() {
int i, j, k, n;
cout << "Enter the number of star lines: ";
cin >> n;
cout << endl;

for(i = 0; i < n; ++i) {
for(j = 0; j < (n-i-1); ++j) {
cout << " ";
}
for(k = 0; k < (2 * i + 1); ++k) {
cout << "*";
}
cout << endl;
}
return 0;
}

Answer 2

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Answer 3

ah. it's better to define the counters I,....
In the loop not in the start of the code

Answer 4

#include <iostream>
#include <conio.h>
void main()
{
     int i,space,rows,k=0;
    cout<<"Enter the number of rows: ";
    cin>>rows;
    for(i=1;i<=rows;++i)
    {
        for(space=1;space<=rows-i;++space)
        {
           cout<<"  ";
        }
        while(k!=2*i-1)
        {
           cout<<"* ";
           ++k;
        }
        k=0;
        cout<<"\n";
    }
}

Answer 5

#include <iostream>
using namespace std;
void main()
{
for (int i = 1; i<=5 ; i++)
{
for( int j = 1 ; j <= i ; j++)
{
cout <<"*";

cou << "\n";
}
}
}