1. Write a program that asks the user to input a number (n) and display the sum of first n integers using for loop. #include int main() { int n, count, sum = 0; printf("Enter a positive integer: "); scanf("%d", &num); // for loop terminates when num is less than count for (count = 1; count <= n; ++count) { sum += count; } printf("Sum = %d", sum); return 0;

1. Write a program that asks the user to input a number (n) and display the sum of first n integers using for loop. #include int main() { int n, count, sum = 0; printf("Enter a positive integer: "); scanf("%d", &num); // for loop terminates when num is less than count for (count = 1; count <= n; ++count) { sum += count; } printf("Sum = %d", sum); return 0;

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Types of Loop

Loops are the elements of programming in which a part of code is repeated a particular number of times. Loop executes the series of statements many times till the conditional statement becomes false.

Loops

Any task which is repeated more than one time is called a loop. Basically, loops can be divided into three types as while, do-while and for loop. There are so many programming languages like C, C++, JAVA, PYTHON, and many more where looping statements can be used for repetitive execution.

While Loop

Loop is a feature in the programming language. It helps us to execute a set of instructions regularly. The block of code executes until some conditions provided within that Loop are true.

Question

1. Write a program that asks the user to input a number (n) and display the sum of first n
integers using for loop.
#include <stdio.h>
int main()
{
int n, count, sum = 0;
printf("Enter a positive integer: ");
scanf("%d", &num);
// for loop terminates when num is less than count
for (count = 1; count <= n; ++count)
{
sum += count;
}
printf ("Sum = %d", sum);
return 0;

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