C++ Program:

- To print full triangle pattern using *

Example:

User Input: 3

Output:

    *
  * * *
* * * * *
#include <iostream>
using namespace std;

int main() {
  int rows;
  cout <<"Enter number of rows: ";
  cin >> rows;
  for(int i=rows; i>=1; i--) {
    for(int j=1; j<=(2*rows-i); j++) {
      if(j<i)cout<<"  ";
      else cout<<"* ";
    }
    cout<<endl;
  }
  return 0;
}

Output:

Enter number of rows: 4

      *
    * * *
  * * * * *
* * * * * * *
Program
pattern

Main Logic :

for(int i=rows; i>=1; i--) {
  for(int j=1; j<=(2*rows-i); j++) {
    if(j<i)cout<<"  ";
    else cout<<"* ";
  }
  cout<<endl;
}

You can print any thing in this pattern, just replace your value with *

Concept

Coming Soon !

Quick
Tutorial

Quote

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