(C++ programming Example for Beginners)
C++ Programs To Create Pyramid and Pattern
Examples to print half pyramid, pyramid, inverted pyramid, Pascal’s Triangle and Floyd’s triangle in C++ Programming using control statements.
Programs to print triangles using *, numbers and characters
Example 1: Program to print half pyramid using *
* * * * * * * * * * * * * * *
Source Code
#include <iostream>
using namespace std;
int main(){
int rows;
cout << "Enter number of rows: ";
cin >> rows;
for(int i = 1; i <= rows; ++i)
{
for(int j = 1; j <= i; ++j)
{
cout << "* ";
}
cout << "n";
}
return 0;
}
Example 2: Program to print half pyramid a using numbers
1 1 2 1 2 3 1 2 3 4 1 2 3 4 5
Source Code
#include <iostream>
using namespace std;
int main(){
int rows;
cout << "Enter number of rows: ";
cin >> rows;
for(int i = 1; i <= rows; ++i)
{
for(int j = 1; j <= i; ++j)
{
cout << j << " ";
}
cout << "n";
}
return 0;
}
Example 3: Program to print half pyramid using alphabets
A B B C C C D D D D E E E E E
Source Code
#include <iostream>
using namespace std;
int main(){
char input, alphabet = 'A';
cout << "Enter the uppercase character you want to print in the last row: ";
cin >> input;
for(int i = 1; i <= (input-'A'+1); ++i)
{
for(int j = 1; j <= i; ++j)
{
cout << alphabet << " ";
}
++alphabet;
cout << endl;
}
return 0;
}
Programs to print inverted half pyramid using * and numbers
Example 4: Inverted half pyramid using *
* * * * * * * * * * * * * * *
Source Code
#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 <= i; ++j)
{
cout << "* ";
}
cout << endl;
}
return 0;
}Example 5: Inverted half pyramid using numbers
1 2 3 4 5 1 2 3 4 1 2 3 1 2 1
Source Code
#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 <= i; ++j)
{
cout << j << " ";
}
cout << endl;
}
return 0;
}Programs to display pyramid and inverted pyramid using * and digits
Example 6: Program to print full pyramid using *
*
* * *
* * * * *
* * * * * * *
* * * * * * * * *
Source Code
#include <iostream>
using namespace std;
int main(){
int space, rows;
cout <<"Enter number of rows: ";
cin >> rows;
for(int i = 1, k = 0; i <= rows; ++i, k = 0)
{
for(space = 1; space <= rows-i; ++space)
{
cout <<" ";
}
while(k != 2*i-1)
{
cout << "* ";
++k;
}
cout << endl;
}
return 0;
}
Example 7: Program to print pyramid using numbers
1
2 3 2
3 4 5 4 3
4 5 6 7 6 5 4
5 6 7 8 9 8 7 6 5
Source Code
#include <iostream>
using namespace std;
int main(){
int rows, count = 0, count1 = 0, k = 0;
cout << "Enter number of rows: ";
cin >> rows;
for(int i = 1; i <= rows; ++i)
{
for(int space = 1; space <= rows-i; ++space)
{
cout << " ";
++count;
}
while(k != 2*i-1)
{
if (count <= rows-1)
{
cout << i+k << " ";
++count;
}
else
{
++count1;
cout << i+k-2*count1 << " ";
}
++k;
}
count1 = count = k = 0;
cout << endl;
}
return 0;
}
Example 8: Inverted full pyramid using *
* * * * * * * * *
* * * * * * *
* * * * *
* * *
*
Source Code
#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 space = 0; space < rows-i; ++space)
cout << " ";
for(int j = i; j <= 2*i-1; ++j)
cout << "* ";
for(int j = 0; j < i-1; ++j)
cout << "* ";
cout << endl;
}
return 0;
}
Example 9: Print Pascal’s triangle
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
Source Code
#include <iostream>
using namespace std;
int main(){
int rows, coef = 1;
cout << "Enter number of rows: ";
cin >> rows;
for(int i = 0; i < rows; i++)
{
for(int space = 1; space <= rows-i; space++)
cout <<" ";
for(int j = 0; j <= i; j++)
{
if (j == 0 || i == 0)
coef = 1;
else
coef = coef*(i-j+1)/j;
cout << coef << " ";
}
cout << endl;
}
return 0;
}
Example 10: Print Floyd’s Triangle.
1 2 3 4 5 6 7 8 9 10
Source Code
#include <iostream>
using namespace std;
int main(){
int rows, number = 1;
cout << "Enter number of rows: ";
cin >> rows;
for(int i = 1; i <= rows; i++)
{
for(int j = 1; j <= i; ++j)
{
cout << number << " ";
++number;
}
cout << endl;
}
return 0;
}
C++ for Beginners: C++ Programs To Create Pyramid and Pattern
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