#include<stdio.h>#include<conio.h>#include<string.h>#include<stdlib.h>#define MAX 50voidswap(char*str1,char*str2){char*temp =(char*)malloc((strlen(str1)+1)*sizeof(char));strcpy(temp,str1);strcpy(str1,str2);strcpy(str2,temp);}voidmain(){char str1[MAX], str2[MAX], temp[MAX];printf("Enter first string\t:");gets(str1);printf("Enter second string\t:");gets(str2);printf("\nBefore swapping");printf("\nFirst string\t:%s",str1);printf("\nSecond string\t:%s",str2);swap(str1, str2);printf("\n\nAfter swapping");printf("\nFirst string\t:%s",str1);printf("\nSecond string\t:%s",str2);getch();}
C++
Output
Enter first string :welcome
Enter second string :coursecrux
Before swapping
First string :welcome
Second string :coursecrux
After swapping
First string :coursecrux
Second string :welcome