Programs for printing pyramid patterns in C++
This article is aimed at giving a C++ implementation for pattern printing.
Simple pyramid pattern
CPP
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart(int n){ // Outer loop to handle number of rows // n in this case for (int i = 0; i < n; i++) { // Inner loop to handle number of columns // values changing acc. to outer loop for (int j = 0; j <= i; j++) { // Printing stars cout << "* "; } // Ending line after each row cout << endl; }}// Driver Functionint main(){ int n = 5; pypart(n); return 0;} |
Output
* * * * * * * * * * * * * * *
Printing above pattern using while Loop
CPP
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart(int n){ // Outer loop to handle number of rows // n in this case int i = 0, j = 0; while (i < n) { // Inner loop to handle number of columns // values changing acc. to outer loop while (j <= i) { // Printing stars cout << "* "; j++; } j = 0; // we have to reset j value so as it can // start from begining and print * equal to i. i++; // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; pypart(n); return 0;} |
Output
* * * * * * * * * * * * * * *
After 180 degree rotation
CPP
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Driver Codeint main(){ int n = 5; //looping rows for(int i=n; i>0; i--) { for(int j=0; j<=n; j++) //looping columns { if (j>=i) { cout<<"*"; } else { cout<<" "; } } cout<<endl; } return 0;} |
Output
*
* *
* * *
* * * *
* * * * *
Printing above pattern using while loop
CPP
// C++ code to demonstrate pattern printing#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart2(int n){ int i = 0, j = 0, k = 0; while (i < n) { // for number of spaces while (k < (n - i - 1)) { cout << " "; k++; } // resetting k because we want to run k from // beginning. k = 0; while (j <= i) { cout << "* "; j++; } // resetting k so as it can start from 0. j = 0; i++; cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call pypart2(n); return 0;} |
Output
*
* *
* * *
* * * *
* * * * * Inverted Pyramid Pattern
C++
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart(int n){ // Outer loop to handle number of rows // n in this case for (int i = n; i > 0; i--) { // Inner loop to handle number of columns // values changing acc. to outer loop for (int j = 0; j < i; j++) { // Printing stars cout << "* "; } // Ending line after each row cout << endl; }}// Driver Functionint main(){ int n = 5; pypart(n); return 0;} |
Output
* * * * * * * * * * * * * * *
Printing above pattern using while loop
C++
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart(int n){ // Outer loop to handle number of rows // n in this case int i = n, j = 0; while (i > 0) { // Inner loop to handle number of columns // values changing acc. to outer loop while (j < i) { // Printing stars cout << "* "; j++; } j = 0; // we have to reset j value so as it can // start from begining and print * equal to i. i--; // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; pypart(n); return 0;} |
Output
* * * * * * * * * * * * * * *
After 180 degree rotation
C++
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart2(int n){ // number of spaces int k = 2 * n - 2; // Outer loop to handle number of rows // n in this case for (int i = n; i > 0; i--) { // Inner loop to handle number spaces // values changing acc. to requirement for (int j = 0; j < n-i; j++) cout << " "; // Decrementing k after each loop k = k - 2; // Inner loop to handle number of columns // values changing acc. to outer loop for (int j = 0; j < i; j++) { // Printing stars cout << "* "; } // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call pypart2(n); return 0;} |
Output
* * * * *
* * * *
* * *
* *
* Printing above pattern using while loop
C++
// C++ code to demonstrate pattern printing#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart2(int n){ int i = n, j = 0, k = 0; while (i > 0) { // for number of spaces while (k < (n - i)) { cout << " "; k++; } // resetting k because we want to run k from // beginning. k = 0; while (j < i) { cout << "* "; j++; } // resetting k so as it can start from 0. j = 0; i--; cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call pypart2(n); return 0;} |
Output
* * * * *
* * * *
* * *
* *
* Printing Triangle
Method 1
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Function to demonstrate printing patternvoid triangle(int n){ // number of spaces int k = 2 * n - 2; // Outer loop to handle number of rows // n in this case for (int i = 0; i < n; i++) { // Inner loop to handle number spaces // values changing acc. to requirement for (int j = 0; j < k; j++) cout << " "; // Decrementing k after each loop k = k - 1; // Inner loop to handle number of columns // values changing acc. to outer loop for (int j = 0; j <= i; j++) { // Printing stars cout << "* "; } // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call triangle(n); return 0;} |
Method 2
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart2(int n){ // Number of spaces int i, j, k = n; // Outer loop to handle number of rows // n in this case for (i = 1; i <= n; i++) { // Inner loop for columns for (j = 1; j <= n; j++) { // Condition to print star pattern if (j >= k) cout << "* "; else cout << " "; } k--; cout << "\n"; }}// Driver Codeint main(){ int n = 5; // Function Call pypart2(n); return 0;} |
Output
*
* *
* * *
* * * *
* * * * *
Method 3
// C++ code to demonstrate star pattern#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart2(int n){ int i = 0, j = 0, k = 0; while (i < n) { // for spacing while (k <= n - i - 2) { cout << " "; k++; } k = 0; // For Patter printing while (j < 2 * i - 1) { cout << "*"; j++; } j = 0; i++; cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call pypart2(n); return 0;} |
Output
* *** ***** *******
Number Pattern
CPP
// C++ code to demonstrate printing// pattern of numbers#include <iostream>using namespace std;// Function to demonstrate printing// patternvoid numpat(int n){ // initializing starting number int num = 1; // Outer loop to handle number of rows // n in this case for (int i = 0; i < n; i++) { // Inner loop to handle number of columns // values changing acc. to outer loop for (int j = 0; j <= i; j++) cout << num << " "; // Incrementing number at each column num = num + 1; // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call numpat(n); return 0;} |
Output
1 2 2 3 3 3 4 4 4 4 5 5 5 5 5
Above Pattern Using while loop
CPP
// C++ Code for pattern Printing#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart(int n){ int i = 1, j = 0; while (i <= n) { while (j <= i - 1) { cout << i << " "; j++; } j = 0; i++; cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call pypart(n); return 0;} |
Output
1 2 2 3 3 3 4 4 4 4 5 5 5 5 5
Numbers without reassigning
CPP
// C++ code to demonstrate printing pattern of numbers#include <iostream>using namespace std;// Function to demonstrate printing patternvoid numpat(int n){ // Initialising starting number int num = 1; // Outer loop to handle number of rows // n in this case for (int i = 0; i < n; i++) { // Inner loop to handle number of columns // values changing acc. to outer loop for (int j = 0; j <= i; j++) { // Printing number cout << num << " "; // Incrementing number at each column num = num + 1; } // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call numpat(n); return 0;} |
Output
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Above pattern using while loop
CPP
// C++ code to demonstrate printing pattern of numbers#include <iostream>using namespace std;// Function to demonstrate printing patternvoid pypart(int n){ int i = 1, j = 0; // here we declare an num variable which is // assigned value 1 int num = 1; while (i <= n) { while (j <= i - 1) { // Printing numbers cout << num << " "; // here we are increasing num for every // iteration. num++; j++; } j = 0; i++; // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call pypart(n); return 0;} |
Output
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Character Pattern
CPP
// C++ code to demonstrate printing pattern of alphabets#include <iostream>using namespace std;// Function to demonstrate printing patternvoid alphapat(int n){ // Initializing value corresponding to 'A' // ASCII value int num = 65; // Outer loop to handle number of rows // n in this case for (int i = 0; i < n; i++) { // Inner loop to handle number of columns // values changing acc. to outer loop for (int j = 0; j <= i; j++) { // Explicitly converting to char char ch = char(num); // Printing char value cout << ch << " "; } // Incrementing number num = num + 1; // Ending line after each row cout << endl; }}// Driver Functionint main(){ int n = 5; alphapat(n); return 0;} |
Output
A B B C C C D D D D E E E E E
Above pattern using while loop
CPP
// C++ code to demonstrate printing pattern of alphabets#include <iostream>using namespace std;// Function to demonstrate printing patternvoid alphapat(int n){ int i = 1, j = 0; // assigning ASCII value of A which is 65 int num = 65; // converting ASCII value to character, // now our alpha variable is having // value A after typecasting. char alpha = char(num); while (i <= n) { // alpha is having A value and it // will change as soon as alpha // increased or decreased. while (j <= i - 1) { cout << alpha << " "; j++; } // incrementing alpha value so as it can // point to next character alpha++; // we have to reset j value so as it can // start from beginning and print * equal to // i. j = 0; i++; // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call alphapat(n); return 0;} |
Output
A B B C C C D D D D E E E E E
Continuous Character pattern
CPP
// C++ code to demonstrate printing pattern of alphabets#include <iostream>using namespace std;// Function to demonstrate printing patternvoid contalpha(int n){ // Initializing value corresponding to 'A' // ASCII value int num = 65; // Outer loop to handle number of rows // n in this case for (int i = 0; i < n; i++) { // Inner loop to handle number of columns // values changing acc. to outer loop for (int j = 0; j <= i; j++) { // Explicitely converting to char char ch = char(num); // Printing char value cout << ch << " "; // Incrementing number at each column num = num + 1; } // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call contalpha(n); return 0;} |
Output
A B C D E F G H I J K L M N O
Above pattern using while loop
CPP
// C++ code to demonstrate printing pattern of alphabets#include <iostream>using namespace std;// Function to demonstrate printing patternvoid contalpha(int n){ int i = 1, j = 0; int num = 65; char alpha = char(num); while (i <= n) { while (j <= i - 1) { cout << alpha << " "; // incrementing alpha value in every // iteration so as it can assign to // next character alpha++; j++; } j = 0; i++; // Ending line after each row cout << endl; }}// Driver Codeint main(){ int n = 5; // Function Call contalpha(n); return 0;} |
Output
A B C D E F G H I J K L M N O
Printing patterns in python language are discussed in the article below :
Programs for printing pyramid patterns in Python
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