回答編集履歴
1
追記
answer
CHANGED
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@@ -55,4 +55,76 @@
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55
55
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10 cards: HJ SA D7 DA C2 SJ HQ DJ CK H3
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56
56
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10 cards: C7 S2 DT ST SQ C9 H5 DQ C3 SK
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57
57
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*/
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58
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```
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59
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60
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[追記] こっちの方がイケてるかな。
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61
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62
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```C++
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63
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#include <iostream> // cout, endl
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64
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#include <string> // string
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65
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#include <vector> // vector
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66
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#include <algorithm> // sort
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67
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#include <numeric> // iota
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68
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#include <random> // mt19937, random_device
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69
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#include <utility> // pair, make_pair
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70
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#include <cassert> // assert
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71
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72
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class card {
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73
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private:
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74
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int id_;
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75
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explicit card(int id) : id_(id) {
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76
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assert( id >= 0 && id < 52 );
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77
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}
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78
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79
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public:
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80
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card() = delete;
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81
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int suit() const { return id_ % 4; }
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82
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int rank() const { return id_ / 4; }
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83
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std::string suit_str() const { return std::string(1,"CDHS"[suit()]); }
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84
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std::string rank_str() const { return std::string(1,"A23456789TJQK"[rank()]); }
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85
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std::string str() const { return suit_str() + rank_str(); }
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86
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87
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static card make(int id) { return card(id); }
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88
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};
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89
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90
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inline bool operator<(const card& a, const card& b) {
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91
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return std::make_pair(a.rank(),a.suit()) < std::make_pair(b.rank(),b.suit());
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92
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}
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93
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94
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inline std::ostream& operator<<(std::ostream& stream, const card& c) {
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95
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return stream << c.str();
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96
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}
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97
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98
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int main() {
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99
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using namespace std;
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100
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101
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// N人のplayer
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102
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const int N = 5;
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103
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vector<vector<card>> players(N);
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104
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105
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// 52枚のcardからなるdeck
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106
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vector<card> deck;
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107
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for ( int id = 0; id < 52; ++id ) {
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108
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deck.emplace_back(card::make(id));
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109
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}
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110
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// deckをシャッフル
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111
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shuffle(deck.begin(), deck.end(), mt19937(random_device()()));
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112
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113
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// deckが空になるまで、cardを各playerに配る
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114
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for ( int c = 0; !deck.empty(); ++c %= N ) {
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115
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players[c].emplace_back(deck.back());
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116
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deck.pop_back();
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117
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}
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118
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119
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// 各playerに対し
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120
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for ( vector<card>& hand : players ) {
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121
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// 手札を(ソートして)公開
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122
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cout << hand.size() << " cards: ";
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123
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sort(hand.begin(), hand.end());
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124
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for ( const card& c : hand ) {
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125
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cout << c << ' ';
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126
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}
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127
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cout << endl;
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128
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}
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129
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}
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58
130
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```
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