// What does this program do? #include using std::cout; using std::cin; using std::endl; bool mystery3( const char *, const char * ); // prototype int main() { char string1[ 80 ], string2[ 80 ]; cout « "Enter two strings: "; cin >> string1 >> string2; cout <« "The result is } // end main « mystery3( string1, string2 ) « endl;

// SumAndProduct.cpp - This program computes sums and products // Input: Interactive// Output: Computed sum and product #include <iostream>#include <string>void sums(int);void products(int);using namespace std; int main() { int number; cout << "Enter a positive integer or 0 to quit: "; cin >> number; while(number != 0) { // Call sums function here // Call products function here cout << "Enter a positive integer or 0 to quit: "; cin >> number; } return 0;} // End of main function// Write sums function here// Write products function here

#include <iostream> using namespace std; int rectArea (int len, int wid) { return len * wid; } int main () { int length, width; cin >> length >> width; cout << "The area of a " << length << " by " << width << " rectangle is " << /*add code to call the reacArea function */ << "." << endl; return 0; }

#include<bits/stdc++.h>using namespace std;bool isPalindrome(string &s){    int start=0;    int end=s.length()-1;    while(start<=end)    {        if(s[start]!=s[end])        {            return false;                    }        start++;        end--;    }    return true;}int main(){    string s;    cout<<"ENTER STRING:";    getline(cin,s);    int n=s.length();    bool flag=true;    for(int i=1;i<n;i++)    {        string lowerHalf=s.substr(0,i);        string upperHalf=s.substr(i,n-i);      if(isPalindrome(lowerHalf) && isPalindrome(upperHalf))      {          flag=false;          cout<<"String A is:"<<lowerHalf<<"\n";          cout<<"String B is:"<<upperHalf<<"\n";          break;      }    }    if(flag)    {        cout<<"NO\n";    }    return 0;} change to stdio.h string.h