Program to Find nth Pronic Number

A Number is a Pronic number which is the product of two consecutive integers, that is, a number of the form num(num+1).

Example:

               Given Number=90
               product of two consecutive number 9*10=90
               so, 90 is a Pronic Number.
                 
                Given Number=80
               there are no consecutive multiple presents. 
               That's why 80 is not a  Pronic Number.
                                          
Problem statement:-  Program to Find nth Pronic Number.

Data requirement:-

   Input Data:- rangenumber

   Output Data:- rangenumber, letest

   Additional Data:- c, num, flag

Program in C

Here is the source code of the C Program to Find nth Pronic Number.

Code:

//Nth Pronic Number
#include <stdio.h>
int
main ()
{
  int i, rangenumber, num = 1, c = 0, letest = 0;
  printf ("Enter the Nth value:");
  scanf ("%d", &rangenumber);
  while (c != rangenumber)
    {
    int flag=0;
     for(i=0;i<=num;i++)
   {
       if(i*(i+1)==num)
       {
           flag=1;
           break;
       }
   }

   if(flag==1)
   {
          c++;
          letest=num;
    }
      num = num + 1;
    }
  printf ("%dth Pronic number is %d", rangenumber, letest);
  return 0;
}

Input/Output:

Enter the Nth value:10
10th Pronic number is 110  

Program in C++

Here is the source code of the C++ Program to Find nth Pronic Number.

Code:

#include <iostream>
using namespace std;
int
main ()
{
  int i, rangenumber, num = 1, c = 0, letest = 0;
  cout<<"Enter the Nth value:";
  cin>>rangenumber;
  while (c != rangenumber)
    {
   int flag=0;
     for(i=0;i<=num;i++)
   {
       if(i*(i+1)==num)
       {
           flag=1;
           break;
       }
   }

   if(flag==1)
   {
          c++;
          letest=num;
    }
      num = num + 1;
    }
  cout<<rangenumber<<"th Pronic number is "<<letest;
  return 0;
}

Input/Output:

Enter the Nth value:5
5th Pronic number is 30

Program in Java

  

Here is the source code of the Java Program to Find nth Pronic Number.

Code:

import java.util.Scanner;
public class NthPronicNumber {

public static void main(String[] args) {
Scanner cs=new Scanner(System.in);
int  rangenumber, num = 1, c = 0, letest = 0,i;
  System.out.println("Enter Nth number:");
  rangenumber=cs.nextInt();
           
  while (c != rangenumber)
    {
  int flag=0;
     for(i=0;i<=num;i++)
   {
       if(i*(i+1)==num)
       {
           flag=1;
           break;
       }
   }

   if(flag==1)
   {
          c++;
          letest=num;
    }
      num = num + 1;
    }
System.out.println(rangenumber+"th Pronic number is "+letest);
cs.close();
}
}

Input/Output:

Enter Nth number:
17
17th Pronic number is 306

Program in Python
  

Here is the source code of the Program to Find nth Pronic Number.

Code:

import math
rangenumber=int(input("Enter a Nth Number:"))
c = 0
letest = 0
num = 1
while c != rangenumber:
    flag = 0
    for j in range(0, num + 1):
        if j * (j + 1) == num:
            flag = 1
            break
    if flag == 1:
            c+=1
            letest = num

    num = num + 1
print(rangenumber,"th Pronic number is ",letest)

Input/Output:

Enter a Nth Number:45
45 th Pronic number is  2070

More:-

C/C++/Java/Python Practice Question