## Calculate sum of first 1000 integers

I need a program in C++ language for calculating the sum of first 1000 integers using while loop. And print the result.

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Posted on - 01/15/2012

I need a program in C++ language for calculating the sum of first 1000 integers using while loop. And print the result.

Best Answer

Best Answer

Hi Eleanor,

You can try to use the sample program below:

include <iostream>

using namespace std;

int main()

{

// declarations of the variables

int sum,num;

//initialization of the variables

sum = 0;

num = 1;

//using the while loop to find out the sum of fist 1000 integers starting from one.

while number <= 1000)

{

//Adding the integers to the contents of sum

sum = sum + number;

//Generate the next integer by adding 1 to the integer

number = number + 1;

}

cout <<"The sum of the first 1000 integers starting from 1 is " <<sum;

}

Aristono

Let me make you clear that the previous answer to the question has only one problem. "num to be replaced by number.".

However I give you a fresh code.

#include < iostream.h >

void main ( ) {

int sum=0; //Initialize the sum variable

int ctr = 1; // count for 1000 integers

while ( ct r<= 1000 ){ //check whether 1000 integers are done.

sum = sum + ctr; //sum integer with the previous sum.

ctr = ctr + 1; //increment to next integer

}

}

cout<<"Printing the result on the standard output : Sum is : "<<sum; //Print the Summed result to standard output

In a more compact form

#inlcude < iostream.h >

void main ( ) {

int sum=0 , ctr = 1; //Initialize the sum and ctr variables

while ( ct r<= 1000 ) //check whether 1000 integers are done.

sum = sum + ctr++; //sum integer with the previous sum and then increment.

cout<<"Printing the result on the standard output : Sum is : "<<sum; //Print the Summed result to standard output

}