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Calculate Square of a Number in C, C++

Write a C ,  C++ program to calculate square of a number. You have to input number and your program print it's square.

Some more problems for practice.

Calculate cube of a number.

Find sum of first n odd numbers.

Program to check perfect square of a number.

Calculate square of a number in C

#include<stdio.h>


int main() {


  int num,sqr;
   
  printf("Enter number \n");
  scanf("%d", &num);
 
  /* square. */

  sqr = num * num;
 
  printf("Square of a number is %d",sqr);
 
  return 0;
}


Calculate square of a number in C++


 

#include <iostream.h>

using namespace std;

 int main() {
 
   int num,sqr;
   
   cout << "Enter number \n";
   cin  >> num;
   
   /* calculation of square. */

   sqr = num * num;

   cout<< " Square of a number is " <<sqr;

  return 0;
}

Output:

Enter number  :  6

Square of a number is :  36

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