Bulls_and_Cows1

#include <stdio.h> #include <stdlib.h> #include <time.h> #define ATTEMPT 9 int generate_target_number(void){ srand(time(0)); int num=0; int i,j; int str[3]; for(i=0; i<3; i++){ str[i] = rand()%10; } for(i=0; i<3;){ for(j=0; j<3; j++); if(j<i) str[i] = rand()%10; else i++; } for(i=0; i<3; i++){ num = num*10+str[i]; } return num; }

int is_different_digit(int num){ int digits[3]; int is_different = 1; digits[0] = num%10; digits[1] = (num/10)%10; digits[2] = num/100; if ((digits[0]==digits[1])||(digits[0]==digits[2])||(digits[1]==digits[2])) is_different = 0; return is_different; } int guess_number(void){ int num; while(1){ printf("Enter your guess: "); scanf("%d", &num); if(num<1000 && is_different_digit(num)) break; printf("Input Error Wrong number format\n"); } return num; }

int get_match_result(int target, int guessed){ int n_strike=0, n_ball=0; int target_digit[3]; int guessed_digit[3];

    int i,j;

    target_digit[0] = target/100;
    target_digit[1] = (target/10)%10;
    target_digit[2] = target%10;

    guessed_digit[0] = guessed/100;
    guessed_digit[1] = (guessed/10)%10;
    guessed_digit[2] = guessed%10;

    for (i=0; i<3; i++){
            for(j=0; j<3; j++){
                    if((i==j) && target_digit[i] == guessed_digit[j])
                            n_strike++;
                    else if((i!=j) && target_digit[i] == guessed_digit[j])
                            n_ball++;
                    else;
            }
    }
    return (n_strike*10 + n_ball);

}

void receive_match_result(int result, int guessed) { int n_strike = result/10, n_ball = result%10; switch (result) { case 30 : printf("Congratulation !!!\n"); break; case 0 : printf("Oops !!!\n"); break; default : printf("Nice try !!!\n"); } printf("Your guess %d is [%d] strikes and [%d] balls\n", guessed, n_strike, n_ball); }

int main(void) { int n_attempt = 0; int target_num, guessed_num, match_result;

    srand(time(0));
    target_num = generate_target_number();
    do{
            printf("Attempt [%d/%d]", ++n_attempt, ATTEMPT);
            guessed_num = guess_number();
            match_result = get_match_result(target_num, guessed_num);
            receive_match_result(match_result, guessed_num);
    }while (n_attempt <= ATTEMPT && match_result !=30);

    if (match_result==30)
            printf("Congratulation!!! You win\n");
    else
            printf("Nice try! But you lose\n");

return 0; }