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triple.h
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/*
* triple header
* written by Shuangquan Li, [email protected]
* created on 2016-3-29
*/
#ifndef __TRIPLE_H__
#define __TRIPLE_H__
template<typename T, typename U, typename V> class triple {
public:
T first;
U second;
V third;
triple() {};
triple(const T&a, const U&b, const V&c) : first(a), second(b), third(c) {}
~triple() {}
triple & operator = (const triple&b) {
first = b.first;
second = b.second;
third = b.third;
return *this;
}
bool operator == (const triple &b) const {
return first == b.first && second == b.second && third == b.third;
}
bool operator < (const triple &b) const {
return first != b.first ? first < b.first : (second != b.second ? second < b.second : third < b.third);
}
bool operator > (const triple &b) const {
return first != b.first ? first > b.first : (second != b.second ? second > b.second : third > b.third);
}
bool operator <= (const triple &b) const {
return *this < b || *this == b;
}
bool operator >= (const triple &b) const {
return *this > b || *this == b;
}
};
template<typename T, typename U, typename V> triple<T, U, V> make_triple(const T&a, const U&b, const V&c) { return triple<T, U, V>(a, b, c); }
#define mt make_triple
typedef triple<int, int, int> TIII;
typedef triple<long long, long long, long long> TLLL;
typedef std::vector<TIII> VTIII;
typedef std::vector<TLLL> VTLLL;
/* eof */
#endif