Program to print all Pronic numbers between 1 to 100

Program to print all Pronic numbers between 1 to 100 on fibonacci, factorial, prime, armstrong, swap, reverse, search, sort, stack, queue, array, linkedlist, tree, graph etc.

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Program to print all Pronic numbers between 1 and 100

Explanation

In this program, we need to display all Pronic numbers between 1 and 100.

Pronic number

The pronic number can be defined as the number which is a product of two consecutive numbers. Mathematically, the Pronic number can be represented as

N x (N + 1)

To find whether a number n is a Pronic number or not, use for loop to iterate from i = 1 to i = n and check whether i*(i+1) is equal to n for any value of i.

Some of the examples of Pronic numbers are

6 = 2 x 3

72 = 8 x 9

Algorithm

isPronicNumber() determines whether a given number is the Pronic number or not.
1. Define a boolean variable flag and set its value to false.
2. Use for loop to iterate from 1 to given number and check whether i * (i + 1) is equal to the given number, for any value of i.
3. If a match is found, then set the flag to true, break the loop and returns the value of the flag.
To display all Pronic numbers between 1 and 100,
1. Start a loop from 1 to 100, and make a call to isPronicNumber() method for each value from 1 to 100.
2. If isPronicNumber() returns true which signifies that number is Pronic, then display that number.

Solution

Python

#isPronicNumber() will determine whether a given number is a pronic number or not
def isPronicNumber(num):
    flag = False;
    
    for j in range(1, num+1):
        #Checks for pronic number by multiplying consecutive numbers
        if((j*(j+1)) == num):
            flag = True;
            break;
    return flag;
 
#Displays pronic numbers between 1 and 100
print("Pronic numbers between 1 and 100: ");
for i in range(1, 101):
    if(isPronicNumber(i)):
        print(i),
        print(" "),

Output:

Pronic numbers between 1 and 100: 
2 6 12 20 30 42 56 72 90

C

#include <stdio.h>
#include <stdbool.h>
 
//isPronicNumber() will determine whether a given number is pronic number or not
bool isPronicNumber(int num){
    bool flag = false;
    
    for(int j = 1; j <= num; j++){
        //Checks for pronic number by multiplying consecutive numbers
        if((j*(j+1)) == num){
            flag = true;
            break;
        }
    }
    return flag;
}
 
int main()
{
    //Displays pronic numbers between 1 and 100
    printf("Pronic numbers between 1 and 100: \n");
    for(int i = 1; i <= 100; i++){
        if(isPronicNumber(i))
            printf("%d ", i);
    }
 
    return 0;
}

Output:

Pronic numbers between 1 and 100: 
2 6 12 20 30 42 56 72 90

JAVA

public class PronicNumbers
{
    //isPronicNumber() will determine whether a given number is pronic number or not
    public static boolean isPronicNumber(int num){
        boolean flag = false;
        
        for(int j = 1; j <= num; j++){
            //Checks for pronic number by multiplying consecutive numbers
            if((j*(j+1)) == num){
                flag = true;
                break;
            }
        }
        return flag;
    }
    
    public static void main(String[] args) {
        
        //Displays pronic numbers between 1 and 100
        System.out.println("Pronic numbers between 1 and 100: ");
        for(int i = 1; i <= 100; i++){
            if(isPronicNumber(i))
                System.out.print(i + " ");
        }
    }
}

Output:

Pronic numbers between 1 and 100: 
2 6 12 20 30 42 56 72 90

C#

using System;
                    
public class PronicNumbers
{
    //isPronicNumber() will determine whether a given number is pronic number or not
    public static Boolean isPronicNumber(int num){
        Boolean flag = false;
        
        for(int j = 1; j <= num; j++){
            //Checks for pronic number by multiplying consecutive numbers
            if((j*(j+1)) == num){
                flag = true;
                break;
            }
        }
        return flag;
    }
    
    public static void Main()
    {
        //Displays pronic numbers between 1 and 100
        Console.WriteLine("Pronic numbers between 1 and 100: ");
        for(int i = 1; i <= 100; i++){
            if(isPronicNumber(i))
                Console.Write(i + " ");
        }
    }
}

Output:

Pronic numbers between 1 and 100: 
2 6 12 20 30 42 56 72 90

PHP

<!DOCTYPE html>
<html>
<body>
<?php
//isPronicNumber() will determine whether a given number is pronic number or not
function isPronicNumber($num){
    $flag = false;
    
    for($j = 1; $j <= $num; $j++){
        //Checks for pronic number by multiplying consecutive numbers
        if(($j*($j+1)) == $num){
            $flag = true;
            break;
        }
    }
    return $flag;
}
 
//Displays pronic numbers between 1 and 100
print("Pronic numbers between 1 and 100: <br>");
for($i = 1; $i <= 100; $i++){
    if(isPronicNumber($i))
        print($i . " ");
}
?>
</body>
</html>

Output:

Pronic numbers between 1 and 100: 
2 6 12 20 30 42 56 72 90

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Program to print all Pronic numbers between 1 to 100

Program to print all Pronic numbers between 1 and 100

Explanation

Algorithm

Solution

Python

C

JAVA

C#

PHP

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