Write a programme which takes any 4 numbers from users. The program should display the sum of squares of these numbers.

Learning Objectives: The objective of this exercise is to get you to write, compile and run a number of simple programmes in C.

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>

int main (){
   
    int n1,n2,n3,n4,sum,sqr_sum;
    n1=n2=n3=sum=0;
    //veriable decliration and initilization
   
    printf("\nPROGRAM TO PRINT SUM OF SQUARES OF FOUR NUMBERS");
    printf("\n===============================================\n\n");
    //headings
   
    printf("\n\tEnter 1st Number\t");
    scanf("%d",&n1);
    printf("\n\tEnter 2nt Number\t");
    scanf("%d",&n2);
    printf("\n\tEnter 3rd Number\t");
    scanf("%d",&n3);
    printf("\n\tEnter 4th Number\t");
    scanf("%d",&n4);
    //taking input
   
    sum=n1+n2+n3+n4;
    sqr_sum=(n1*n1)+(n2*n2)+(n3*n3)+(n4*n4);
    //process
   
    system("cls");
    //clear screen to show output screen
   
    printf("\nPROGRAM TO PRINT SUM AND SQUARE OF FOUR NUMBERS");
    printf("\n===============================================\n\n");
    //headings

    printf("\n\tNumber  \tSquare\n");
    printf("\n\t %d  \t\t %d",n1,n1*n1);
    printf("\n\t %d  \t\t %d",n2,n2*n2);
    printf("\n\t %d  \t\t %d",n3,n3*n3);
    printf("\n\t %d  \t\t %d",n4,n4*n4);
   
    printf("\n\t----  \t\t ----");
    printf("\nSum\t%d  \t\t %d",sum,sqr_sum);
    //output

    getch();
    return 0;
   
}