Here's the C++ solution to Exercise: Hotter or Colder.

#include <iostream>
#include <stdlib.h> 
#include <time.h> 
using namespace std; 
 
int main () { 
    // generate secret number between 1 and 100:
    srand(time(0)); 
    int secret_number = rand() % 100 + 1;
    cout << "Secret number chosen (between 1 and 100)." << endl;
    // use while loop and "true" to create infinite loop
    int guess; 
    cout << "Start guessing! ... " << endl;
    while (true) {
        cin >> guess;
 
        // compare secret_number and guess
        if (guess == secret_number) {
            cout << "Congratulations, you did it!" << endl;
            break; // exit loop when guess is equal to secret number
        }
        else if (guess < secret_number) {
            cout << "You're too cold!" << endl;
        }
        else {
            cout << "You're too hot!" << endl;
        }
    }
    
    cout << "Secret number is " << secret_number << endl; 
    return 0;
}

^{To try out this code, follow this link.}

Sample interaction 1:

Secret number chosen (between 1 and 100).
Start guessing! ... 
70
You're too cold!
85
You're too cold!
95
You're too hot!
90
You're too cold!
93
Congratulations, you did it!
Secret number is 93

Sample interaction 2:

Secret number chosen (between 1 and 100).
Start guessing! ... 
40
You're too cold!
80
You're too hot!
60
You're too hot!
50
You're too cold!
55
You're too hot!
53
You're too hot!
52
Congratulations, you did it!
Secret number is 52