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Given the number of rows of the triangle, the task is to print Floyd’s triangle in C, C++, and Python.
Examples:
Example1:
Input:
Given number of rows of the triangle = 10
Output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
- Java Program to Print Floyd’s Triangle Number Pattern
- Java Program to Print Reverse Floyd’s Triangle Number Pattern
- Python Program to Print Inverted Right Triangle of Numbers
Example2:
Input:
Given number of rows of the triangle = 13
Output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
Program to Print Floyd’s Triangle in C, C++, and Python
Below are the ways to print Floyd’s triangle in C, C++, and Python.
Method #1: Using For Loop (Static Input)
Approach:
- Give the number of rows of the triangle as static input and store it in a variable.
- Take a variable and initialize it with 1 say sampNum.
- Loop from 1 to the number of rows of the triangle using For loop.
- Using another For loop, loop from 1 to the parent loop iterator value (Nested For loop).
- Inside the inner for loop print the sampNum with a space character.
- Increase the value of sampNum by 1.
- Print the Newline Character after the end of the inner for loop.
- The Exit of the program.
1) Python Implementation
Below is the implementation:
# Give the number of rows of the triangle as static input and store it in a variable.
triRows = 10
# Take a variable and initialize it with 1 say sampNum.
sampNum = 1
# Loop from 1 to the number of rows of the triangle using For loop.
for m in range(1, triRows+1):
# Using another For loop, loop from 1 to the parent loop iterator value (Nested For loop).
for n in range(1, m+1):
# Inside the inner for loop print the sampNum with a space character.
print(sampNum, end=' ')
# Increase the value of sampNum by 1.
sampNum = sampNum+1
# Print the Newline Character after the end of the inner for loop.
print()
Output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
2) C++ Implementation
Below is the implementation:
#include <iostream>
using namespace std;
int main()
{
// Give the number of rows of the triangle as static
// input and store it in a variable.
int triRows = 10;
// Take a variable and initialize it with 1 say sampNum.
int sampNum = 1;
// Loop from 1 to the number of rows of the triangle
// using For loop.
for (int m = 1; m <= triRows; m++) {
for (int n = 1; n <= m; n++) {
// Inside the inner for loop print the
// sampNum with a space character.
cout << sampNum << " ";
// Increase the value of sampNum by 1.
sampNum = sampNum + 1;
}
// Print the Newline Character after the end of the
// inner for loop.
cout << endl;
}
return 0;
}
Output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
3) C Implementation
Below is the implementation:
#include <stdio.h>
int main()
{
// Give the number of rows of the triangle as static
// input and store it in a variable.
int triRows = 10;
// Take a variable and initialize it with 1 say sampNum.
int sampNum = 1;
// Loop from 1 to the number of rows of the triangle
// using For loop.
for (int m = 1; m <= triRows; m++) {
for (int n = 1; n <= m; n++) {
// Inside the inner for loop print the
// sampNum with a space character.
printf("%d ", sampNum);
// Increase the value of sampNum by 1.
sampNum = sampNum + 1;
}
// Print the Newline Character after the end of the
// inner for loop.
printf("\n");
}
return 0;
}
Output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
Method #2: Using For Loop (User Input)
Approach:
- Give the number of rows of the triangle as user input and store it in a variable.
- Take a variable and initialize it with 1 say sampNum.
- Loop from 1 to the number of rows of the triangle using For loop.
- Using another For loop, loop from 1 to the parent loop iterator value (Nested For loop).
- Inside the inner for loop print the sampNum with a space character.
- Increase the value of sampNum by 1.
- Print the Newline Character after the end of the inner for loop.
- The Exit of the program.
1) Python Implementation
Give the number of rows of the triangle as user input using the int(input()) function and store it in a variable.
Below is the implementation:
# Give the number of rows of the triangle as user input
# using the int(input()) function and store it in a variable.
triRows = int(input('Enter some random number of rows of the triangle = '))
# Take a variable and initialize it with 1 say sampNum.
sampNum = 1
# Loop from 1 to the number of rows of the triangle using For loop.
for m in range(1, triRows+1):
# Using another For loop, loop from 1 to the parent loop iterator value (Nested For loop).
for n in range(1, m+1):
# Inside the inner for loop print the sampNum with a space character.
print(sampNum, end=' ')
# Increase the value of sampNum by 1.
sampNum = sampNum+1
# Print the Newline Character after the end of the inner for loop.
print()
Output:
Enter some random number of rows of the triangle = 11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66
2) C++ Implementation
Give the number of rows of the triangle as user input using the cin function and store it in a variable.
Below is the implementation:
#include <iostream>
using namespace std;
int main()
{
// Give the number of rows of the triangle as user input
// using the cin function and store it in a variable.
int triRows;
cout<<"Enter some random number of rows of the triangle = ";
cin >> triRows;
// Take a variable and initialize it with 1 say sampNum.
int sampNum = 1;
// Loop from 1 to the number of rows of the triangle
// using For loop.
for (int m = 1; m <= triRows; m++) {
for (int n = 1; n <= m; n++) {
// Inside the inner for loop print the
// sampNum with a space character.
cout << sampNum << " ";
// Increase the value of sampNum by 1.
sampNum = sampNum + 1;
}
// Print the Newline Character after the end of the
// inner for loop.
cout << endl;
}
return 0;
}
Output:
Enter some random number of rows of the triangle = 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
3) C Implementation
Give the number of rows of the triangle as user input using the scanf function and store it in a variable.
Below is the implementation:
#include <stdio.h>
int main()
{
// Give the number of rows of the triangle as user input
// using the scanf function and store it in a variable.
int triRows;
scanf("%d", &triRows);
// Take a variable and initialize it with 1 say sampNum.
int sampNum = 1;
// Loop from 1 to the number of rows of the triangle
// using For loop.
for (int m = 1; m <= triRows; m++) {
for (int n = 1; n <= m; n++) {
// Inside the inner for loop print the
// sampNum with a space character.
printf("%d ", sampNum);
// Increase the value of sampNum by 1.
sampNum = sampNum + 1;
}
// Print the Newline Character after the end of the
// inner for loop.
printf("\n");
}
return 0;
}
Output:
number of rows =4 1 2 3 4 5 6 7 8 9 10
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