C语言

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


#define NUM_RANKS 13
#define NUM_SUITS 4
#define NUM_CARDS 5




/*函数声明*/
void read_cards(int num_in_rank[],int num_in_suit[]);
void analyze_hand(int num_in_rank[],int num_in_suit[],bool *straight,bool *flush,bool *four,bool *three,int *pairs);
void print_result(bool straight,bool flush,bool four,bool three,int pairs);


/**********************************************************
 * main: 重复调用 read_cards, analyze_hand, and print_result *
 *                                                        *
 **********************************************************/
int main(void)
{
  int num_in_rank[NUM_RANKS];
  int num_in_suit[NUM_SUITS];
  bool straight,flush,four,three;
  int pairs;/*can be 0,1,or2*/


  for (;;) {
    read_cards(num_in_rank,num_in_suit);
    analyze_hand(num_in_rank,num_in_suit,&straight,&flush,&four,&three,&pairs);
    print_result(straight,flush,four,three,pairs);
  }
}


/**********************************************************
 * read_cards: Reads the cards into the parameters        *
 *             num_in_rank and num_in_suit; checks        *
 *             for bad cards and duplicate cards.         *
 **********************************************************/
void read_cards(int num_in_rank[],int num_in_suit[])
{
  bool card_exists[NUM_RANKS][NUM_SUITS];//记录该张牌是否已出现
  char ch, rank_ch, suit_ch;
  int rank, suit;
  bool bad_card;//是否是不合法的牌
  int cards_read = 0;//记录输入的牌的张数


  for (rank = 0; rank < NUM_RANKS; rank++) {
    num_in_rank[rank] = 0;//清零
    for (suit = 0; suit < NUM_SUITS; suit++)
      card_exists[rank][suit] = false;//清零
  }


  for (suit = 0; suit < NUM_SUITS; suit++)
    num_in_suit[suit] = 0;//清零


  while (cards_read < NUM_CARDS)
  {
    bad_card = false;


    printf("Enter a card: ");


    rank_ch = getchar();//输入面值
    switch (rank_ch)
    {
      case '0':           exit(EXIT_SUCCESS);
      case '2':           rank = 0; break;
      case '3':           rank = 1; break;
      case '4':           rank = 2; break;
      case '5':           rank = 3; break;
      case '6':           rank = 4; break;
      case '7':           rank = 5; break;
      case '8':           rank = 6; break;
      case '9':           rank = 7; break;
      case 't': case 'T': rank = 8; break;
      case 'j': case 'J': rank = 9; break;
      case 'q': case 'Q': rank = 10; break;
      case 'k': case 'K': rank = 11; break;
      case 'a': case 'A': rank = 12; break;
      default:            bad_card = true;
    }


    suit_ch = getchar();//输入花色
    switch (suit_ch)
    {
      case 'c': case 'C': suit = 0; break;
      case 'd': case 'D': suit = 1; break;
      case 'h': case 'H': suit = 2; break;
      case 's': case 'S': suit = 3; break;
      default:            bad_card = true;
    }


    while ((ch = getchar()) != '\n')//判断是否结束输入
      if (ch != ' ') bad_card = true;


    if (bad_card)
      printf("Bad card; ignored.\n");
    else if (card_exists[rank][suit])
      printf("Duplicate card; ignored.\n");
    else
    {
      num_in_rank[rank]++;
      num_in_suit[suit]++;
      card_exists[rank][suit] = true;
      cards_read++;
    }
  }
}


/**********************************************************
 * analyze_hand: Determines whether the hand contains a   *
 *               straight, a flush, four-of-a-kind,       *
 *               and/or three-of-a-kind; determines the   *
 *               number of pairs; stores the results into *
 *               the external variables straight, flush,  *
 *               four, three, and pairs.                  *
 **********************************************************/
void analyze_hand(int num_in_rank[],int num_in_suit[],bool *straight,bool *flush,bool *four,bool *three,int *pairs)
{
  int num_consec = 0;
  int rank, suit;


  *straight = false;//顺子
  *flush = false;//同花
  *four = false;//四条
  *three = false;//三条
  *pairs = 0;//对数


  /* check for flush */
  for (suit = 0; suit < NUM_SUITS; suit++)
    if (num_in_suit[suit] == NUM_CARDS)//5张牌同一个花色 ，即同花
      *flush = true;


  /* check for straight */
  rank = 0;
  while (num_in_rank[rank] == 0) rank++;//跳过没有出现的牌
  for (; rank < NUM_RANKS && num_in_rank[rank] > 0; rank++)//统计分值连续出现的牌数量
    num_consec++;
  if (num_consec == NUM_CARDS) {   //若分值连续出现的数量为发牌数量，那么就是顺子
    *straight = true;
    return;
  }


  /* check for 4-of-a-kind, 3-of-a-kind, and pairs */
  for (rank = 0; rank < NUM_RANKS; rank++) {
    if (num_in_rank[rank] == 4) *four = true;
    if (num_in_rank[rank] == 3) *three = true;
    if (num_in_rank[rank] == 2) (*pairs)++;
  }
}


/**********************************************************
 * print_result: Prints the classification of the hand,   *
 *               based on the values of the external      *
 *               variables straight, flush, four, three,  *
 *               and pairs.                               *
 **********************************************************/
void print_result(bool straight,bool flush,bool four,bool three,int pairs)
{
  if (straight && flush) printf("Straight flush");//同花顺
  else if (four)         printf("Four of a kind");//四条，即炸弹
  else if (three &&
           pairs == 1)   printf("Full house");//葫芦
  else if (flush)        printf("Flush");//同花
  else if (straight)     printf("Straight");//顺子
  else if (three)        printf("Three of a kind");//三条
  else if (pairs == 2)   printf("Two pairs");//两对
  else if (pairs == 1)   printf("Pair");//一对
  else                   printf("High card");//高分


  printf("\n\n");
}