Hello! Can you just explain line per line what this code means? I understand the

Question

Hello! Can you just explain line per line what this code means? I understand the output and that it's a guessing game. I have a presentation that i need to explain how it all works, including the lines of it. I know part of it, but not everything :)

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
int main()

{

int number, guess,lower_limit,upper_limit,i=0,difficulty;
printf("There are three difficulty levels in the game ");
printf("Please enter the difficulty level:");
scanf("%d",&difficulty);
switch(difficulty)
{
       case 1:
               lower_limit = 0;
               upper_limit = 10;
               break;
       case 2:
               lower_limit = 0;
               upper_limit = 100;
               break;
       case 3:
               lower_limit = 0;
               upper_limit = 1000;
               break;
       default:
               break;
}
srand( time( 0 ) );
number = lower_limit + rand() % (upper_limit - lower_limit + 1);

printf( "Guess the number between %d and %d: ", lower_limit, upper_limit );
printf("User:");
while( scanf( "%d", &guess ) == 1 ){
if( number == guess ){
printf( "You guessed correctly! " );
break;
}
printf( "Your guess was too %s. Try again: ", number < guess ? "high" : "low" );
i++;
}
    printf("You have guessed %d times ",++i);
return 0;
}

output:

Explanation / Answer

// include the appropriate header files
#include <stdlib.h>
#include <stdio.h>
#include <time.h>

// main function starts
int main()
{
// declare the variables to be used in the program
int number, guess,lower_limit,upper_limit,i=0,difficulty;
// print the starting messages
printf("There are three difficulty levels in the game ");
// Prompt the user for the difficulty level
printf("Please enter the difficulty level:");
// input the difficulty level
scanf("%d",&difficulty);
// check the difficulty level value to set the level
switch(difficulty)
{
   // if difficulty level is 1, set the limit to 0-10
case 1:
lower_limit = 0;
upper_limit = 10;
break;
// if difficulty level is 2, set the limit to 0-100
case 2:
lower_limit = 0;
upper_limit = 100;
break;
// if difficulty level is 3, set the limit to 0-1000
case 3:
lower_limit = 0;
upper_limit = 1000;
break;
// if the difficulty level is non of them, do nothing
default:
break;
}
// seed the srand function with parameter time
srand( time( 0 ) );
// generate a random number in the range according to the difficulty level
number = lower_limit + rand() % (upper_limit - lower_limit + 1);

// Prompt the user to enter his guess
printf( "Guess the number between %d and %d: ", lower_limit, upper_limit );
printf("User:");
// if 1 guess is successfully read move inside the loop
while( scanf( "%d", &guess ) == 1 ){
// if the guess entered is same as the generated random number, print the message and exit
if( number == guess ){
printf( "You guessed correctly! " );
break;
}
// if guess is not correct, give appropriate hint to the user
printf( "Your guess was too %s. Try again: ", number < guess ? "high" : "low" );
// increase the number of attempts count
i++;
}
// print the number of attempts by the user to guess the correct value
printf("You have guessed %d times ",++i);
return 0;
}

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