Home » C solved programs » C basic programs

# C program to find sum of all numbers from 0 to N without using loop

Here, we are implementing a **C program that will be used to find the sum of all numbers from 0 to N without using loop**.

Submitted by **IncludeHelp**, on September 04, 2018

## Problem statement

Given the value of ** N** and we have to find sum of all numbers from 0 to

**in C language.**

*N*To **find the sum of numbers from 0 to N**, we use a mathematical formula: N(N+1)/2

### Example

Input: Enter value of N: 5 Logic/formula: sum = N*(N+1)/2 = 5*(5+1)/2 =5*6/2 = 15 Output: sum = 15 Input: Enter value of N: 10 Logic/formula: sum = N*(N+1)/2 = 10*(10+1)/2 =10*11/2 = 110/2 = 55 Output: sum = 55

## C program to find sum of all numbers from 0 to N without using loop

#include <stdio.h> int main(void) { int n, sum; //input value of n printf("Enter the value of n: "); scanf("%d", &n); //initialize sum with 0 sum =0; //use formula to get the sum from 0 to n sum = n*(n+1)/2; //print sum printf("sum = %d\n", sum); return 0; }

### Output

Run1: Enter the value of n: 5 sum = 15 Run2: Enter the value of n: 10 sum = 55

Related Programs

- C program to find subtraction of two integer number
- C program to find sum and average of two numbers
- C program to print ASCII value of a character
- C program to find cube of an integer number using two different methods
- C program to find quotient and remainder
- Program to calculate simple interest
- Program to check whether number is EVEN or ODD
- Program to find largest number among three numbers
- C program to check whether a person is eligible for voting or not?
- C program to read marks and print percentage and division
- Program to find gross salary of an employee
- C program to convert temperature from Fahrenheit to Celsius and vice versa
- C program to calculate X^N (X to the power of N) using pow function
- C program to find the difference of two numbers
- C program to print size of variables using sizeof() operator
- C program to demonstrate examples of escape sequences
- C program to find area and perimeter of circle
- C program to find area of a rectangle
- C program to calculate HCF of two numbers
- C program to multiply two numbers using plus operator
- C program to demonstrate example of global and local scope
- C program to demonstrate example of floor and ceil functions
- Write a C program to evaluate the net salary of an employee given the following constraints
- How to swap two numbers without using a temporary variable using C program?
- C program to read name and marital status of a girl and print her name with Miss or Mrs
- C program to check given number is divisible by A and B
- C program to find sum of all numbers from 0 to N without using loop
- Input hexadecimal value in C language
- Printing an address of a variable in C
- printf() statement within another printf() statement in C
- printf() examples/variations in C
- C program to calculate profit or loss
- Calculate the distance between two cities from kilometers to meters, centimeters, feet and inches using C program
- C program to find area and perimeter of the rectangle
- C program to generate random numbers within a range
- C Example to subtract two integers without using Minus (-) operator
- C Example for different floating point values prediction
- C Example for nested 'printf'
- C program to get remainder without using % operator
- C program to convert ascii to integer (atoi implementation)
- C program to print ASCII table
- C program to swap two numbers using four different methods
- C program to check a given character is alphanumeric or not without using the library function
- C program to check a given character is a digit or not without using the library function

- C program to check a given character is a whitespace character or not without using the library function
- C program to check a given character is an uppercase character or not without using the library function
- C program to check a given character is a lowercase character or not without using the library function
- C program to check a given character is a punctuation mark or not without using the library function
- C program to check whether a character is a printable character or not without using library function
- C program to convert a lowercase character into uppercase without using library function
- C program to convert an uppercase character into lowercase without using library function
- C program to print all punctuation marks without using library function
- C program to print all punctuation marks using the ispunct() function
- C program to print all printable characters using the isprint() function
- C program to print all printable characters without using the library function
- C program to make a beep sound
- C program to convert a given number of days into days, weeks, and years
- C program to find the roots of a quadratic equation
- C program to find the GCD (Greatest Common Divisor) of two integers
- C program to find the LCM (Lowest Common Multiple) of two integers
- C program to calculate the area of a triangle given three sides
- C program to calculate the area of a triangle given base and height
- C program to calculate the area of Trapezium
- C program to calculate the area of the rhombus
- C program to calculate the area of Parallelogram
- C program to calculate the area of Cube
- C program to calculate the volume of Cube
- C program to find the Surface Area and Volume of the Cylinder
- C program to calculate the surface area, volume, and space diagonal of cuboids
- C program to calculate the surface area, volume of Cone
- C program to calculate the surface area, volume of the Sphere
- C program to calculate the mean, variance, and standard deviation of real numbers
- C program to read coordinate points and determine its quadrant
- C program to calculate the value of nCr
- C program to calculate the value of nPr
- C program to calculate the product of two binary numbers
- C program to calculate the addition of two complex numbers
- C program to extract the last two digits from a given year
- C program to perform the ATM Transactions
- C program to read the height of a person and the print person is taller, dwarf, or average height person
- C program to read the grade of student print equivalent description

Comments and Discussions!