# C Program to find the even numbers square and sum from 1 to 10.

C Program to find the even numbers square and sum from 1 to 10.
Even number is an integer, which is the multiple of two. In this program we use the for loop to produce the even numbers. Try to change the for loop limits you can get the various range results. Read more about C Programming Language .

`/************************************************************ You can use all the programs on  www.c-program-example.com* for personal and learning purposes. For permissions to use the* programs for commercial purposes,* contact [email protected]* To find more C programs, do visit www.c-program-example.com* and browse!* *                      Happy Coding***********************************************************/#include<stdio.h>#include<conio.h>int main(){ int i,j,sum = 0; clrscr(); printf("nEven numbers and their squares from 1 to 10:n"); for(i =1; i <=10; i++) {  if(i % 2 == 0)  {   j = i * i;   printf("%dtt%d",i,j);   printf("n");   sum = sum + j;  } } printf("nnSum of even numbers square from 1 to 10 is: %d",sum); return 0;}`
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# K & R C Programs Exercise 2-2.

K and R C, Solution to Exercise 2-2:
C Program to demonstrate for and while loops. K and R C Program. Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise. Read more about C Programming Language .

`/************************************************************ You can use all the programs on  www.c-program-example.com* for personal and learning purposes. For permissions to use the* programs for commercial purposes,* contact [email protected]* To find more C programs, do visit www.c-program-example.com* and browse!* *                      Happy Coding***********************************************************//*Write the equivalent to the below for loop without using && or ||.*/// Original  for(i=0; i<lim-1 && (c=getchar()) != 'n' && c != EOF; ++i)  {   s[i] = c;  }// Equivalent:  while (i < (lim - 1)) {  c = getchar();  if (c == EOF)   break;  else if (c == 'n')   break;  s[i++] = c; }`

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# C program to find the sum of ‘N’ natural numbers.

Write a C program to find the sum of ‘N’ natural numbers. Natural numbers are the whole numbers except zero, usually we used for counting.

`/************************************************************ You can use all the programs on  www.c-program-example.com* for personal and learning purposes. For permissions to use the* programs for commercial purposes,* contact [email protected]* To find more C programs, do visit www.c-program-example.com* and browse!* *                                  Happy Coding***********************************************************/#include <stdio.h>#include <conio.h>void main(){ int i, N, sum = 0; clrscr(); printf("Enter an integer numbern"); scanf ("%d", &N); for (i=1; i <= N; i++) {  sum = sum + i; } printf ("Sum of first %d natural numbers = %dn", N, sum);}`
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