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Program to Check if Given Number is Perfect Square or Not using While loop

Program to Check if Given Number is Perfect Square or Not using While loop

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  • Write a program to Check if Given Number is Perfect Square or Not using While loop in C
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  • Write a program to Check if Given Number is Perfect Square or Not using While loop in Java
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  • Write a program to Check if Given Number is Perfect Square or Not using While loop in C#

Explanation:

  1. If the number is negative, return False immediately since negative numbers cannot be perfect squares.
  2. Use a for loop to iterate through integers from 0 up to the number.
  3. For each integer i, check if i × i = number:
    • If true, the number is a perfect square, so return True.
    • If i × i > number, break the loop early, as further iterations are unnecessary.
  4. If no such i is found, return False.

This approach works for smaller numbers efficiently but may be slow for very large numbers. For a more efficient method, consider using binary search.

Program to Check if Given Number is Perfect Square or Not using While loop

<div class="contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950"><div class="overflow-y-auto p-4" dir="ltr"><code class="!whitespace-pre hljs language-c">#include <stdio.h>

int isPerfectSquare(int num) {
    int i = 1;
    while (i * i <= num) {
        if (i * i == num) {
            return 1; // Perfect square
        }
        i++;
    }
    return 0; // Not a perfect square
}

int main() {
    int num;
    printf("Enter a number: ");
    scanf("%d", &num);

    if (isPerfectSquare(num)) {
        printf("%d is a perfect square.\n", num);
    } else {
        printf("%d is not a perfect square.\n", num);
    }

    return 0;
}


#include <iostream>
using namespace std;

bool isPerfectSquare(int num) {
    int i = 1;
    while (i * i <= num) {
        if (i * i == num) {
            return true; // Perfect square
        }
        i++;
    }
    return false; // Not a perfect square
}

int main() {
    int num;
    cout << "Enter a number: ";
    cin >> num;

    if (isPerfectSquare(num)) {
        cout << num << " is a perfect square." << endl;
    } else {
        cout << num << " is not a perfect square." << endl;
    }

    return 0;
}

def is_perfect_square(num):
    i = 1
    while i * i <= num:
        if i * i == num:
            return True # Perfect square
        i += 1
    return False # Not a perfect square

num = int(input("Enter a number: "))

if is_perfect_square(num):
    print(f"{num} is a perfect square.")
else:
    print(f"{num} is not a perfect square.")


<?php
function isPerfectSquare($num) {
    $i = 1;
    while ($i * $i <= $num) {
        if ($i * $i == $num) {
            return true; // Perfect square
        }
        $i++;
    }
    return false; // Not a perfect square
}

$num = (int)readline("Enter a number: ");

if (isPerfectSquare($num)) {
    echo "$num is a perfect square.\n";
} else {
    echo "$num is not a perfect square.\n";
}
?>


import java.util.Scanner;

public class PerfectSquare {
    public static boolean isPerfectSquare(int num) {
        int i = 1;
        while (i * i <= num) {
            if (i * i == num) {
                return true; // Perfect square
            }
            i++;
        }
        return false; // Not a perfect square
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a number: ");
        int num = sc.nextInt();

        if (isPerfectSquare(num)) {
            System.out.println(num + " is a perfect square.");
        } else {
            System.out.println(num + " is not a perfect square.");
        }
    }
}


function isPerfectSquare(num) {
    let i = 1;
    while (i * i <= num) {
        if (i * i === num) {
            return true; // Perfect square
        }
        i++;
    }
    return false; // Not a perfect square
}

let num = parseInt(prompt("Enter a number: "));

if (isPerfectSquare(num)) {
    console.log(`${num} is a perfect square.`);
} else {
    console.log(`${num} is not a perfect square.`);
}


using System;

class Program {
    static bool IsPerfectSquare(int num) {
        int i = 1;
        while (i * i <= num) {
            if (i * i == num) {
                return true; // Perfect square
            }
            i++;
        }
        return false; // Not a perfect square
    }

    static void Main() {
        Console.Write("Enter a number: ");
        int num = int.Parse(Console.ReadLine());

        if (IsPerfectSquare(num)) {
            Console.WriteLine($"{num} is a perfect square.");
        } else {
            Console.WriteLine($"{num} is not a perfect square.");
        }
    }
}

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