http://yukicoder.me/submissions/45138
自前クラスの入出力と、compare<
を定義するだけの実装ゲー
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(n);++i)
#define trace(var) cerr<<">>> "<<#var<<" = "<<var<<endl;
template<class T> inline
ostream& operator<<(ostream&os, vector<T> v) {
if (v.size() == 0) { return os << "(empty)"; }
os << v[0];
for (int i=1, len=v.size(); i<len; ++i) os << ' ' << v[i];
return os;
}
template<class T> inline
istream& operator>>(istream&is, vector<T>&v) {
rep (i, v.size()) is >> v[i];
return is;
}
enum Suit { D, C, H, S };
struct Card {
Suit s;
int n;
Card() {};
Card(Suit _s, int _n) : s(_s), n(_n) {};
};
ostream& operator<<(ostream&os, Suit&s) {
if (s == D) os << 'D';
else if (s == H) os << 'H';
else if (s == C) os << 'C';
else if (s == S) os << 'S';
else cerr << "Suit show Error" << endl;
return os;
}
ostream& operator<<(ostream&os, Card&c) {
os << c.s;
if (c.n == 1) os << 'A';
else if (c.n == 10) os << 'T';
else if (c.n == 11) os << 'J';
else if (c.n == 12) os << 'Q';
else if (c.n == 13) os << 'K';
else os << c.n;
return os;
}
istream& operator>>(istream&is, Suit&s) {
char c; is >> c;
if (c == 'D') s = D;
else if (c == 'H') s = H;
else if (c == 'C') s = C;
else if (c == 'S') s = S;
else cerr << "Suit read Error" << endl;
return is;
}
istream& operator>>(istream&is, Card&c) {
Suit s; is >> s;
char n; is >> n;
c.s = s;
if (n == 'A') c.n = 1;
else if (n == 'T') c.n = 10;
else if (n == 'J') c.n = 11;
else if (n == 'Q') c.n = 12;
else if (n == 'K') c.n = 13;
else c.n = n - '0';
return is;
}
bool operator<(const Card& lh, const Card& rh) {
if (lh.s != rh.s) return lh.s < rh.s;
return lh.n < rh.n;
}
int main() {
int n; cin >> n;
vector<Card> cs(n); cin >> cs;
sort(begin(cs), end(cs));
cout << cs << endl;
return 0;
}
vector<T>
の入出力はテンプレに入れてるが、重宝している. 特に入力はしょっちゅう使うし、 出力は問題に依存するが、yukicoderでは私の定義の形でそのまま使えることが多い気がする.