C语言程序设计现代方法第二版，第10章课后编程习题

第一题
这题10.2中的pop函数没有用，在我的电脑里（vs2017）当把pop赋值给字符串时总是报错，尝试了各种办法都不行，提示是：char(*)()和char类型不兼容。求大神帮呀

#include <stdio.h>
#include<string>
#define STACK_SIZE 100
int top = 0;
char contents[STACK_SIZE];
void make_empty(void)
{top = 0;
}
bool is_empty(void)
{return top == 0;
}
bool is_full(void)
{return top == STACK_SIZE;
}
void push(char i)
{if (!is_full())contents[top++] = i;
}
char pop(void)
{if (!is_empty())return contents[top--];
}int main(void)
{char ch,temp;int n = 0;printf("Enter parenteses and/or brance:");while ((ch = getchar()) != '\n'){if (ch == '[' || ch == '{')push(ch);else if (ch == ']' || ch == '}'){temp = contents[--top];if (ch == ']'&& temp != '['){n = 1;printf("ch:%c   temp:%c\n", ch, temp);}else if (ch == '}'&& temp != '{')n = 1;}}if (n == 1)printf("错误\n");elseprintf("正确\n");system("pause");
return 0;}

第二题

/********************************************************** From C PROGRAMMING: A MODERN APPROACH, Second Edition ** By K. N. King                                         ** Copyright (c) 2008, 1996 W. W. Norton & Company, Inc. ** All rights reserved.                                  ** This program may be freely distributed for class use, ** provided that this copyright notice is retained.      **********************************************************//* poker.c (Chapter 10, page 233) *//* Classifies a poker hand */#include <stdbool.h>   /* C99 only */
#include <stdio.h>
#include <stdlib.h>#define NUM_RANKS 13
#define NUM_SUITS 4
#define NUM_CARDS 5/* external variables */bool straight, flush, four, three;
int pairs;   /* can be 0, 1, or 2 *//* prototypes */
void read_cards(int a[NUM_RANKS], int b[NUM_SUITS]);
void analyze_hand(int a[NUM_RANKS], int b[NUM_SUITS]);
void print_result(void);/*********************************************************** main: Calls read_cards, analyze_hand, and print_result **       repeatedly.                                      ***********************************************************/
int main(void)
{int rank, suit;int num_in_rank[NUM_RANKS];int num_in_suit[NUM_SUITS];for (rank = 0; rank < NUM_RANKS; rank++) num_in_rank[rank] = 0;for (suit = 0; suit < NUM_SUITS; suit++)num_in_suit[suit] = 0;for (;;) {read_cards(num_in_rank, num_in_suit);analyze_hand(num_in_rank, num_in_suit);print_result();}
}/*********************************************************** read_cards: Reads the cards into the external          **             variables num_in_rank and num_in_suit;     **             checks for bad cards and duplicate cards.  ***********************************************************/
void read_cards(int a[NUM_RANKS],int b[NUM_SUITS])
{bool card_exists[NUM_RANKS][NUM_SUITS];char ch, rank_ch, suit_ch;int rank, suit;bool bad_card;int cards_read = 0;for (rank = 0; rank < NUM_RANKS; rank++) {for (suit = 0; suit < NUM_SUITS; suit++)card_exists[rank][suit] = false;}while (cards_read < NUM_CARDS) {bad_card = false;printf("Enter a card: ");rank_ch = getchar();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();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')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 {a[rank]++;b[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 a[NUM_RANKS], int b[NUM_SUITS])
{int num_consec = 0;int rank, suit;straight = false;flush = false;four = false;three = false;pairs = 0;/* check for flush */for (suit = 0; suit < NUM_SUITS; suit++)if (b[suit] == NUM_CARDS)flush = true;/* check for straight */rank = 0; while (a[rank] == 0) rank++;for (; rank < NUM_RANKS && a[rank] > 0; rank++)num_consec++;if (num_consec == NUM_CARDS) {straight = true;return;}/* check for 4-of-a-kind, 3-of-a-kind, and pairs */for (rank = 0; rank < NUM_RANKS; rank++) {if (a[rank] == 4) four = true;if (a[rank] == 3) three = true;if (a[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(void)
{if (straight && flush) printf("Straight flush");else if (four)         printf("Four of a kind");else if (three &&pairs == 1)   printf("Full house");else if (flush)        printf("Flush");else if (straight)     printf("Straight");else if (three)        printf("Three of a kind");else if (pairs == 2)   printf("Two pairs");else if (pairs == 1)   printf("Pair");else                   printf("High card");printf("\n\n");
}

第三题

/********************************************************** From C PROGRAMMING: A MODERN APPROACH, Second Edition ** By K. N. King                                         ** Copyright (c) 2008, 1996 W. W. Norton & Company, Inc. ** All rights reserved.                                  ** This program may be freely distributed for class use, ** provided that this copyright notice is retained.      **********************************************************//* poker.c (Chapter 10, page 233) *//* Classifies a poker hand */#include <stdbool.h>   /* C99 only */
#include <stdio.h>
#include <stdlib.h>#define NUM_RANKS 13
#define NUM_SUITS 4
#define NUM_CARDS 5/* external variables */
int hand[NUM_RANKS][NUM_SUITS];
bool straight, flush, four, three;
int pairs;   /* can be 0, 1, or 2 *//* prototypes */
void read_cards(void);
void analyze_hand(void);
void print_result(void);/*********************************************************** main: Calls read_cards, analyze_hand, and print_result **       repeatedly.                                      ***********************************************************/
int main(void)
{for (;;) {read_cards();analyze_hand();print_result();}
}/*********************************************************** read_cards: Reads the cards into the external          **             variables num_in_rank and num_in_suit;     **             checks for bad cards and duplicate cards.  ***********************************************************/
void read_cards(void)
{bool card_exists[NUM_RANKS][NUM_SUITS];char ch, rank_ch, suit_ch;int rank, suit;bool bad_card;int cards_read = 0;for (rank = 0; rank < NUM_RANKS; rank++) {for (suit = 0; suit < NUM_SUITS; suit++)hand[rank][suit] = 0;}while (cards_read < NUM_CARDS) {bad_card = false;printf("Enter a card: ");rank_ch = getchar();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();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')if (ch != ' ') bad_card = true;if (bad_card)printf("Bad card; ignored.\n");else if (hand[rank][suit]  != 0)printf("Duplicate card; ignored.\n");else {hand[rank][suit]++;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(void)
{int num_consec = 0;int rank, suit;straight = false;flush = false;four = false;three = false;pairs = 0;/* check for flush */for (suit = 0; suit < NUM_SUITS; suit++)if (hand[suit][1] == NUM_CARDS)flush = true;/* check for straight */rank = 0;while (hand[rank][0] == 0) rank++;for (; rank < NUM_RANKS && hand[rank][0] > 0; rank++)num_consec++;if (num_consec == NUM_CARDS) {straight = true;return;}/* check for 4-of-a-kind, 3-of-a-kind, and pairs */for (rank = 0; rank < NUM_RANKS; rank++) {if (hand[rank][0] == 4) four = true;if (hand[rank][0] == 3) three = true;if (hand[rank][0] == 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(void)
{if (straight && flush) printf("Straight flush");else if (four)         printf("Four of a kind");else if (three && pairs == 1)   printf("Full house");else if (flush)        printf("Flush");else if (straight)     printf("Straight");else if (three)        printf("Three of a kind");else if (pairs == 2)   printf("Two pairs");else if (pairs == 1)   printf("Pair");else                   printf("High card");printf("\n\n");
}

第四题第五题做到一起了

/********************************************************** From C PROGRAMMING: A MODERN APPROACH, Second Edition ** By K. N. King                                         ** Copyright (c) 2008, 1996 W. W. Norton & Company, Inc. ** All rights reserved.                                  ** This program may be freely distributed for class use, ** provided that this copyright notice is retained.      **********************************************************//* poker.c (Chapter 10, page 233) *//* Classifies a poker hand */#include <stdbool.h>   /* C99 only */
#include <stdio.h>
#include <stdlib.h>#define NUM_RANKS 13
#define NUM_SUITS 4
#define NUM_CARDS 5/* external variables */
int num_in_rank[NUM_RANKS];
int num_in_suit[NUM_SUITS];
bool straight, flush, four, three, big_straight, small_straight;
int pairs;   /* can be 0, 1, or 2 *//* prototypes */
void read_cards(void);
void analyze_hand(void);
void print_result(void);/*********************************************************** main: Calls read_cards, analyze_hand, and print_result **       repeatedly.                                      ***********************************************************/
int main(void)
{for (;;) {read_cards();analyze_hand();print_result();}
}/*********************************************************** read_cards: Reads the cards into the external          **             variables num_in_rank and num_in_suit;     **             checks for bad cards and duplicate cards.  ***********************************************************/
void read_cards(void)
{bool card_exists[NUM_RANKS][NUM_SUITS];char ch, rank_ch, suit_ch;int rank, suit;bool bad_card;int cards_read = 0;for (rank = 0; rank < NUM_RANKS; rank++) {num_in_rank[rank] = 0;for (suit = 0; suit < NUM_SUITS; suit++)card_exists[rank][suit] = false;}for (suit = 0; suit < NUM_SUITS; suit++)num_in_suit[suit] = 0;while (cards_read < NUM_CARDS) {bad_card = false;printf("Enter a card: ");rank_ch = getchar();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();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')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(void)
{int num_consec = 0;int rank, suit;straight = false;flush = false;four = false;three = false;pairs = 0;big_straight = false;small_straight = false;/* check for flush */for (suit = 0; suit < NUM_SUITS; suit++)if (num_in_suit[suit] == NUM_CARDS)flush = true;/* check for straight */rank = 0;while (num_in_rank[rank] == 0) rank++;for (; rank < NUM_RANKS && num_in_rank[rank] > 0; rank++)num_consec++;if (num_consec == NUM_CARDS ){if (num_in_rank[8] == 1 && num_in_rank[12] == 1){big_straight = true;return;}else if (num_in_rank[0] == 1 && num_in_rank[12] == 1){small_straight = true;return;}else{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(void)
{if (straight && flush) printf("Straight flush");if (big_straight && flush) printf("Big straight flush");if (small_straight && flush) printf("small straight flush");else if (four)         printf("Four of a kind");else if (three && pairs == 1) printf("Full house");else if (flush)        printf("Flush");else if (straight)     printf("Straight");else if (three)        printf("Three of a kind");else if (pairs == 2)   printf("Two pairs");else if (pairs == 1)   printf("Pair");else                   printf("High card");printf("\n\n");
}

第六题

在这里插入代码片

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