Planet Chili

Code: Select all

#include <iostream>
#include <iterator>
#include <optional>
int main()
{
	int choices[ 10 ]{ 1,2,3,4,5,6,7,8,9,10 };
	constexpr size_t max_count = std::size( choices ) - 1;

	auto find_choice = [ & ]( int count, int choice )
	{
		for( std::size_t i = 0; i < count; ++i )
			if( choices[ i ] == choice )
				return std::optional<std::size_t>( i );

		return std::optional<std::size_t>();
	};

	std::cout << "Welcome, you may choose a number!\n\n";
	for( int count = 10; count > 0;)
	{
		std::cout << "The available numbers are: ";
		for( int i = 0; i < count; ++i )
			std::cout << choices[ i ] << ' ';

		std::cout << "\nThe numbers that you've already chosen are: ";
		for( int i = count; i < std::size( choices ); ++i )
			std::cout << choices[ i ] << ' ';
		
		std::cout << "\n\nnumber: ";
		int choice = 0; 
		std::cin >> choice;

		if( auto idx = find_choice( count, choice ); idx )
		{
			for( std::size_t j = *idx; j < max_count; ++j )
				std::swap( choices[ j ], choices[ j + 1 ] );
			--count;
		}
		else
		{
			std::cout << "Sorry! You can't enter that number.";
		}

		std::cout << "\n\n";
	}
	
	std::cout << "congrats! you've entered all the numbers. good job!\n";
	system( "pause" );
	return 0;
}

Code: Select all

#include <stdio.h>
#include <stdlib.h>

int repeat_checker(int integer, int * array, int exclusion, int size){

    int i = 0;

    while(array[i] != '\0' && i < size){
        if(i == exclusion){
            i++;
            continue;
        }else if(array[i] == integer){
            return 1;
            }
        i++;
    }

    return 0;

}

int main()
{
    printf("welcome, you may choose a number!\n\n");

    int i;

    int unavailable_numbers[10] = {'\0'};

    do{
        printf("the available numbers are: ");
        for(i = 1; i<=10; i++){
            if(repeat_checker(i, unavailable_numbers, -1, 10)){
                continue;
            }
            printf("%d ", i);
        }

        printf("\nthe numbers that you've already chosen are: ");
        for(i = 1; unavailable_numbers[i-1] != '\0' && i<=10; i++){
            printf("%d ", unavailable_numbers[i-1]);
        }

            repeat_error:

        printf("\n\nnumber: ");
        scanf(" %d", &unavailable_numbers[i-1]);

        if(unavailable_numbers[i-1] > 10 || unavailable_numbers[i-1] < 1
           || repeat_checker(unavailable_numbers[i-1], unavailable_numbers, i-1, 10)){
            unavailable_numbers[i-1] = '\0';
            printf("sorry! you can't enter that number\n");
            goto repeat_error;
        }

        putchar('\n');
        putchar('\n');

    }while(unavailable_numbers[9]=='\0');

    printf("congrats! you've entered all the numbers. good job!\n\n");
}