Nov 7, 2021 · I n this tutorial, we are going to see how to swap two numbers using functions in C. We will create a function called swap() that allows you to perform a set of instructions by simply calling the function in the main program body.

Jan 10, 2025 · Swapping two numbers means exchanging their values. In this article, we will learn how to swap values of two numbers in a C program. Example. Input: a = 5, b = 10 Output: a = 10, b = 5. Input: a = 51, b = 17 Output: a = 17, b = 51. Swap Two Numbers Using Temporary Variable. The easiest method to swap two numbers is to use a temporary variable ...

Mar 20, 2025 · Write a C program to swap two numbers by applying bitwise XOR operations within a swap function. Write a C program to swap two elements in an array by passing their addresses to a function. Write a C program to implement a swap function that first checks if both numbers are distinct before swapping.

Lets write a C program to swap 2 numbers using function/method. When we call a function and pass the actual value it’s called as Call by Value method. If we pass the reference or the address of the variable while calling the function, then it’s called Call by Reference .

Learn 5 different ways to swap two numbers in C programming, including using temporary variables, arithmetic operations, XOR, functions, and pointers.

Jul 9, 2023 · //C Program To Swap Two Numbers Using Function #include <stdio.h> void swap(int v1, int v2) { printf("Before Swapping \n First variable = %d \n Second variable = %d \n", v1, v2); v1 = v1 + v2; v2 = v1 - v2; v1 = v1 - v2; printf("After Swapping \n First variable = %d \n Second variable = %d \n", v1, v2); } int main() { int n1, n2; printf("Enter ...

We can use this function to swap two numbers in C programs, just like in the temporary variable approach. Here, we define a variable swapping function that uses memcpy(). The example C program below illustrates this approach.

swap.c /* * SWAP -- demonstrate how pointers work as parameters to functions * * Usage: swap * * Inputs: none * * Outputs: lines showing 2 values before and after swapping with and * without pointers * * Exit Code: 0 (always succeeds) * * written for ECS 030, Fall 2015 * * Matt Bishop, Oct. 14, 2015 * revision from an earlier program * Matt ...

#include <stdio.h> swap (int *, int *); int main() { int a, b; printf("\nEnter value of a & b: "); scanf("%d %d", &a, &b); printf("\nBefore Swapping:\n"); printf("\na = %d\n\nb = %d\n", a, b); swap(&a, &b); printf("\nAfter Swapping:\n"); printf("\na = %d\n\nb = %d", a, b); return 0; } swap (int *x, int *y) { int temp; temp = *x; *x = *y; *y ...

In this example, you will learn to swap two numbers in C programming using two different techniques.