賭けじゃんけん。猛烈につまらないコードになった。

gistfile1.c

#include <stdio.h>
#include <time.h>
#include <stdbool.h>


#define FUNDS_INITIAL 50000
#define MINIMAL_PREMIUM 100

const char* HANDS[] = {"guu", "choki", "paa"};


int inputInt(const int min, const int max)
{
	int result;
	while(scanf("%d", &result) != 1 || result < min || max < result);
	return result;
}

bool janken()
{
	int result, cpu, user=-1;

	do{
		printf("please input your hand(0: %s, 1: %s, 2: %s): ", HANDS[0], HANDS[1], HANDS[2]);

		user = inputInt(0, 2);
		cpu = rand()%3;

		printf("your hand: %s\ncomputer hand: %s\n", HANDS[user], HANDS[cpu]);

		result = (user - cpu + 3)%3;

		printf("%s\n", ((char*[]){"drow", "your win!!", "lose"})[result]);
	}while(result == 0);

	return result == 1;
}

void showFunds(const int funds)
{
	printf("your funds: $%d\n", funds);
}

int desidePremium(const int funds)
{
	printf("please deside premium(%d-%d): ", MINIMAL_PREMIUM, funds);
	return inputInt(MINIMAL_PREMIUM, funds);
}

int main()
{
	int funds = FUNDS_INITIAL;

	srand(time(NULL));

	while(funds > MINIMAL_PREMIUM)
	{
		showFunds(funds);
		int premium = desidePremium(funds);

		if(janken())
			funds += premium;
		else
			funds -= premium;

		printf("\n");
	}

	printf("..................\n\nyou couldn't keep minimal premium...\n");

	return 0;
}