Guess The Number C code

#include <stdio.h>

#include <stdlib.h>

#include <time.h>  // for random number generator seed

int main()

{

    int randomNumber = 0;

    int guess = 0;

    int numberOfGuesses;

    // Initialization of random number generator

    srand(time(0));

    // get the random number

    randomNumber = rand() % 21;

    printf("\nThis is a guessing game.");

    printf("\nI have chosen a number between 0 and 20, which you must guess. \n");

    for(numberOfGuesses = 5; numberOfGuesses > 0; --numberOfGuesses)

    {

        printf("\nYou have %d tr%s left.", numberOfGuesses, numberOfGuesses == 1 ? "y" : "ies");

        printf("\nEnter a guess: ");

        scanf("%d", &guess);

        if(guess == randomNumber)

        {

            printf("\nCongratulations.  You guessed it!\n");

            return;

        }

        else if(guess < 0 || guess > 20)  // checking for an invalid guess

            printf("I said the number is between 0 and 20.\n");

        else if(randomNumber > guess)

            printf("Sorry, %d is wrong.  My number is greater than that.\n", guess);

        else if(randomNumber < guess)

            printf("Sorry, %d is wrong.  My number is less than that.\n", guess);

    }

    printf("\nYou have had five tries and failed. The number was %d\n",randomNumber);

    return 0;

}