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C++ Program to print the diamond shape
This is a C++ Program to print the diamond shape.
Algorithm
Begin Take the no of rows n means the dimension of the diamond shape as input. Declare the variables i, j and initialize space=1. Initialize space = n-1. Run for loop till n. Run for loop to print space. Decrease space. Run for loop to print stars. Now do the same thing in reverse order. Initialize space = 1. Run for loop till n. Run for loop to print space. Increase space. Run for loop to print stars. End
Example
#include<iostream>
using namespace std;
main() {
int n, i, j, space=1;
cout<<"Enter number of rows : ";
cin>>n;
space=n-1;
for (i=1; i<=n; i++) {
for(j=1; j<=space; j++) {
cout<<" "; //print space.
}
space--;
for(j=1; j<=(2*i-1); j++) {
cout<<"*"; //print stars.
}
cout<<"\n";
}
//in reverse order.
space=1;
for (i=1; i<=n; i++) {
for(j=1; j<=space; j++) {
cout<<" "; //print space.
}
space++;
for(j=1; j<=(2*(n-i)-1); j++) {
cout<<"*"; //print stars.
}
cout<<"\n";
}
}Output
Enter number of rows: 4 * *** ***** ******* ***** *** *
Updated on: 30-Jul-2019
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