c programming examples on loops
How to write a program in C using for loop?
The following piece of code is an example to calculate the sum of n natural numbers:
1#include <stdio.h>2int main() {3int num, count, sum = 0;4printf("Enter a positive integer: ");5scanf("%d", &num);6//for loop terminates when n is less than count.7for(count = 1; count <= num; ++count) {8sum += count;What is for loop with example?
A "For" Loop is used to repeat a specific block of code a known number of times.
For example, if we want to check the grade of every student in the class, we loop from 1 to that number.
When the number of times is not known before hand, we use a "While" loop.What is an example of loop in C?
Example 2: for loop
Suppose, the user entered 10.
The count is initialized to 1 and the test expression is evaluated.
Since the test expression count<=num (1 less than or equal to 10) is true, the body of for loop is executed and the value of sum will equal to 1.Consider the following example: for(int i = 0; i < 10; i++) { // Executes ten times. } In this example, an integer variable 'i' is initialized with the value 0.
The loop will continue to execute while the condition 'i < 10' is true, and after each iteration, the value of 'i' is incremented by 1.
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