There are two String variables, s1 and s2, that have already been declared and initialized. Write some code that exchanges their values. Declare any other variables as necessary.

The following are the code

string s1="san";

string s2="ran";

string temp; / / other variable

temp=s1; / / statement 1

s1=s2; / / statement 2

s2=temp; //statement 3

Explanation:

In this code we declared two string s1, s2 and initialized them after that we declared an extra variable temp.

The statement 1 temp=s1 means that temp will store the value of s1 i. e "san". so temp="san";

The second statement 2 s1=s2 means that s1 will store the value of s2

i. e s1="ran";

The third statement 3 s2=temp means that s2 will store the value of temp.

i. e s2="san"

we see that s1 and s2 will exchange their value

Following are the code in c++

#include / / header file

#include

using namespace std;

int main () / / main function

{

string s1="san";

string s2="ran";

string temp;

cout<<"before exchange:"<
temp=s1;

s1=s2;

s2=temp;

cout<<"after exchange:"<
return 0;

}

Output:

before exchange:sanran

after exchange:ransan