游戲算法-洗撲克牌

撲克牌洗牌算法中關鍵點：隨機值的算法及撲克牌的設計。

#include <stdio.h> #include <stdlib.h> #include <time.h>#define CARD_NUM 52 typedef struct _card_tag {char m_card_num;char m_suit; // 3:heart 4:club 5:diomand 6:spade } card_t;card_t arrCards[CARD_NUM];void PrintCard(card_t arrCard[]) {int i = 0;for (i = 0; i < CARD_NUM; i++){if ((i != 0) && (i % 13 == 0)){printf("\n\n");}printf("%d%c ", arrCard[i].m_suit, arrCard[i].m_card_num);}printf("\n\n"); }void Shuffle(card_t arrCard[]) {int i = 0;int nTmp = 0;char nSuit = 3;char chCard = 0; for (i = 0; i < CARD_NUM; i++){if ((i != 0) && (i % 13 == 0)){nSuit++;}nTmp = i % 13;switch(nTmp){case 0:arrCard[i].m_card_num = 'A';break;case 9:arrCard[i].m_card_num = '0';break;case 10:arrCard[i].m_card_num = 'J';break;case 11:arrCard[i].m_card_num = 'Q';break;case 12:arrCard[i].m_card_num = 'K';break;default:arrCard[i].m_card_num = '1' + nTmp;break;}arrCard[i].m_suit = nSuit;}PrintCard(arrCard);srand(time(NULL));for (i = 0; i < CARD_NUM; i++){nTmp = rand() % 52;chCard = arrCard[nTmp].m_card_num;nSuit = arrCard[nTmp].m_suit;arrCard[nTmp].m_card_num = arrCard[i].m_card_num;arrCard[nTmp].m_suit = arrCard[i].m_suit;arrCard[i].m_card_num = chCard;arrCard[i].m_suit = nSuit;}PrintCard(arrCard); }int main() {int n = 0;Shuffle(arrCards);scanf("%d", n);return 0; }

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