переменный обмен в c
// swap variables in C
void swap(int *x, int *y){
int temp = *x;
*x = *y;
*y = temp;
}
swap(&a, &b); // address of a and b
V _VITHURSHAN
// swap variables in C
void swap(int *x, int *y){
int temp = *x;
*x = *y;
*y = temp;
}
swap(&a, &b); // address of a and b#include<stdio.h>
int main()
{
int a=10, b=20;
printf("Before swap a=%d b=%d",a,b);
a=a+b;//a=30 (10+20)
b=a-b;//b=10 (30-20)
a=a-b;//a=20 (30-10)
printf("\nAfter swap a=%d b=%d",a,b);
return 0;
}