swap two numbers in c
#include <stdio.h>
int main() {
double a, b;
printf("Enter a: ");
scanf("%lf", &a);
printf("Enter b: ");
scanf("%lf", &b);
// Swapping
// a = (initial_a - initial_b)
a = a - b;
// b = (initial_a - initial_b) + initial_b = initial_a
b = a + b;
// a = initial_a - (initial_a - initial_b) = initial_b
a = b - a;
printf("After swapping, a = %.2lf\n", a);
printf("After swapping, b = %.2lf", b);
return 0;
}c program to swap two numbers using call by reference
#include <stdio.h>
void swap(int*, int*);
int main()
{
int x, y;
printf("Enter the value of x and y\n");
scanf("%d%d",&x,&y);
printf("Before Swapping\nx = %d\ny = %d\n", x, y);
swap(&x, &y);
printf("After Swapping\nx = %d\ny = %d\n", x, y);
return 0;
}
void swap(int *a, int *b)
{
int temp;
temp = *b;
*b = *a;
*a = temp;
}c program for swapping of two numbers using temporary variable
#include <stdio.h>
int main()
{
int a, b, temp;
printf("enter the values of a and b: \n");
scanf("%d%d", &a, &b );
printf("current values are:\n a=%d\n b=%d\n", a, b);
temp=a;
a=b;
b=temp;
printf("After swapping:\n a=%d\n b=%d\n", a, b);
}how to swap values in variables in c
#include <stdio.h>
#include <stdlib.h>
int main()
{
//initialize variables
int num1 = 10;
int num2 = 9;
int tmp;
//create the variables needed to store the address of the variables
//that we want to swap values
int *p_num1 = &num1;
int *p_num2 = &num2;
//print what the values are before the swap
printf("num1: %i\n", num1);
printf("num2: %i\n", num2);
//store one of the variables in tmp so we can access it later
//gives the value we stored in another variable the new value
//give the other variable the value of tmp
tmp = num1;
*p_num1 = num2;
*p_num2 = tmp;
//print the values after swap has occured
printf("num1: %i\n", num1);
printf("num2: %i\n", num2);
return 0;
}C Programming to swap two variables
#include <stdio.h>
int main()
{
int x = 20, y = 30, temp;
temp = x;
x = y;
y = temp;
printf("X = %d and Y = %d", x, y);
return 0;
}swap two numbers in c
#include<stdio.h>
void swapping(int, int); //function declaration
int main()
{
int a, b;
printf("Enter values for a and b respectively: \n");
scanf("%d %d",&a,&b);
printf("The values of a and b BEFORE swapping are a = %d & b = %d \n", a, b);
swapping(a, b); //function call
return 0;
}
void swapping(int x, int y) //function definition
{
int third;
third = x;
x = y;
y = third;
printf("The values of a and b AFTER swapping are a = %d & b = %d \n", x, y);
}Copyright © 2021 Codeinu
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