Question

b) Write a program that takes three strings from the user, compare the strings, and output them concatenated (as one string). The concatenated string should contain the three strings from shorter to longer.

Answer 1

#include <iostream>
#include <string>

using namespace std;

int main() {
    string s1, s2, s3;
    cout << "Enter first string: ";
    cin >> s1;
    cout << "Enter second string: ";
    cin >> s2;
    cout << "Enter third string: ";
    cin >> s3;

    if (s1.length() > s2.length()) {
        string temp = s1;
        s1 = s2;
        s2 = temp;
    }
    if (s2.length() > s3.length()) {
        string temp = s3;
        s3 = s2;
        s2 = temp;
    }
    if (s1.length() > s2.length()) {
        string temp = s1;
        s1 = s2;
        s2 = temp;
    }
    cout << s1 << s2 << s3 << endl;
    return 0;
}