Programming
Aptitude
Syllabus
Interview Preparation
Interview Exp.
Off Campus
0Floyd’s triangle
Floyd’s triangle
Floyd’s triangle, named after Robert Floyd, is a right angled triangle which is made up using natural numbers. It start from 1 and consecutively selects the next greater number in the sequence.
In the Floyd’s triangle, there are n integers in the nth row and total of (n(n+1))/2 integer in the rows.
1. Write a program to print the following pattern
Enter number of row 5
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
Working
Step1- Take a number of rows to be printed, n.
Step2- Make outer iteration i for n times to print rows.
Step3- Make inner iteration for j to i.
Step4- print k.
Step5- Increment k.
Step6- Print New Line character after each inner iteration.
Step7- Stop.
C
JAVA
C
#include <stdio.h>
int main()
{
int i,j,n,k=1;
printf("enter number of rows : ");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
for(j=1;j<=i;j++)
{
printf("%d ",k);
k++;
}
printf("\n");
}
return 0;
}
JAVA
import java.util.Scanner;
public class Main
{
public static void main(String[] args)
{
//initialize the variable
int i,j,n,k=1;
//taking user input for number of row.
System.out.print("Enter number of row ");
Scanner sc=new Scanner(System.in);
n=sc.nextInt();
//declare outer loop for every new row
for(i=1;i<=n;i++)
{
//declare inner loop for print number in row.
for(j=1;j<=i;j++)
{
System.out.print(k+" ");
//increment k because we need to print incremented value
k++;
}
System.out.println();
}
}
}
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program is very helpful to me ..tnq prepinsta.