C Program To Print Floyd Triangle

There are number of ways to display and Floyd triangle display consecutive numbers in different row. In this example, you will write a program to print Floyd triangle.

Before you begin, learn the basics of C programming language. If you know the basics, skip and continue reading.

• C Program Structure.
• How to install Turbo C++ compiler?
• C Printing Outputs.
• C Reading Input Values.
• C For Loop.

Problem Definition

The program ask for number of row to print. When the user input the number, a list of consecutive numbers are printed for each row. The number of elements for each row also grows.

Suppose the user input is 5 , then five rows of consecutive number are printed and each row has one more number than the previous. See the figure below.

Program Source Code

#include <stdio.h>
#include <stdlib.h>
int main()
{ 
    int n,i,c,a=1;
    printf("Enter the Number of Rows for Floyd Triangle:\n");
    scanf("%d",&n);
    printf("\n");
for(i=1;i<=n;i++)
{
    for(c=1;c<=i;c++)
    {
        printf("%d\t",a);
        a++;
    }
    printf("\n");
}
getch();
return 0;
system("PAUSE"); 
return 0;
}

Output

Enter the Number of Rows for Floyd Triangle:
5

1
2       3
4       5       6
7       8       9       10
11      12      13      14       15