Program to Check if Given Number is Perfect Square or Not using For loop
- Write a program to Check if Given Number is Perfect Square or Not using For loop in C
- Write a program to Check if Given Number is Perfect Square or Not using For loop in C++
- Write a program to Check if Given Number is Perfect Square or Not using For loop in Python
- Write a program to Check if Given Number is Perfect Square or Not using For loop in PHP
- Write a program to Check if Given Number is Perfect Square or Not using For loop in Java
- Write a program to Check if Given Number is Perfect Square or Not using For loop in Java Script
- Write a program to Check if Given Number is Perfect Square or Not using For loop in C#
Explanation:
- If the number is negative, return False immediately since negative numbers cannot be perfect squares.
- Use a for loop to iterate through integers from 0 up to the number.
- 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.
- 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 For loop
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C
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C++
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Python
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PHP
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JAVA
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Java Script
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C#
#include <stdio.h>
int is_perfect_square(int num) {
for (int i = 1; i * i <= num; i++) {
if (i * i == num) {
return 1;
}
}
return 0;
}
int main() {
int n;
printf("Enter a number: ");
scanf("%d", &n);
if (is_perfect_square(n)) {
printf("%d is a perfect square.\n", n);
} else {
printf("%d is not a perfect square.\n", n);
}
return 0;
}
<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-cpp">#include <iostream>
using namespace std;
bool is_perfect_square(int num) {
for (int i = 1; i * i <= num; i++) {
if (i * i == num) {
return true;
}
}
return false;
}
int main() {
int n;
cout << "Enter a number: ";
cin >> n;
if (is_perfect_square(n)) {
cout << n << " is a perfect square." << endl;
} else {
cout << n << " is not a perfect square." << endl;
}
return 0;
}
def is_perfect_square(num):
for i in range(1, num + 1):
if i * i == num:
return True
if i * i > num:
break
return False
n = int(input("Enter a number: "))
if is_perfect_square(n):
print(f"{n} is a perfect square.")
else:
print(f"{n} is not a perfect square.")
<?php
function is_perfect_square($num) {
for ($i = 1; $i * $i <= $num; $i++) {
if ($i * $i == $num) {
return true;
}
}
return false;
}
$n = (int)readline("Enter a number: ");
if (is_perfect_square($n)) {
echo "$n is a perfect square.\n";
} else {
echo "$n is not a perfect square.\n";
}
?>
import java.util.Scanner;
public class PerfectSquare {
public static boolean isPerfectSquare(int num) {
for (int i = 1; i * i <= num; i++) {
if (i * i == num) {
return true;
}
}
return false;
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter a number: ");
int n = scanner.nextInt();
if (isPerfectSquare(n)) {
System.out.println(n + " is a perfect square.");
} else {
System.out.println(n + " is not a perfect square.");
}
scanner.close();
}
}
function isPerfectSquare(num) {
for (let i = 1; i * i <= num; i++) {
if (i * i === num) {
return true;
}
}
return false;
}
let n = parseInt(prompt("Enter a number: "));
if (isPerfectSquare(n)) {
console.log(`${n} is a perfect square.`);
} else {
console.log(`${n} is not a perfect square.`);
}
using System;
class Program {
static bool IsPerfectSquare(int num) {
for (int i = 1; i * i <= num; i++) {
if (i * i == num) {
return true;
}
}
return false;
}
static void Main() {
Console.Write("Enter a number: ");
int n = int.Parse(Console.ReadLine());
if (IsPerfectSquare(n)) {
Console.WriteLine($"{n} is a perfect square.");
} else {
Console.WriteLine($"{n} is not a perfect square.");
}
}
}