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Solution: Swap Two Numbers Using Pointers

Explore how to swap two numbers in C using pointers. This lesson teaches you how passing memory addresses allows direct modification of variables, enhancing your understanding of pointer operations and memory handling.

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C
#include <stdio.h>
void swap(int *x, int *y) {
    int temp;
    temp = *x;
    *x = *y;
    *y = temp;
}
int main() {
    int a = 5;
    int b = 10;
    printf("Before swap: a = %d, b = %d\n", a, b);
    swap(&a, &b);
    printf("After swap: a = %d, b = %d\n", a, b);
    return 0;
}
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