用c语言编写集合运算

交，并，补，差

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#include <iostream> #include <algorithm> #include <vector> #include <boost/lambda/lambda.hpp> using namespace std; int main() { using boost::lambda::_1; int a[] = { 1, 2, 3, 4, 5 }; int b[] = { 3, 4, 5 ,6 ,7 }; int d[] = { 2, 3, 4 }; vector<int> c; // 交 set_intersection( a, a + 5, b, b + 5, back_inserter( c ) ); for_each( c.begin(), c.end(), cout << _1 << ' ' ); c.clear(); cout.put( '\n' ); // 并 set_union( a, a + 5, b, b + 5, back_inserter( c ) ); for_each( c.begin(), c.end(), cout << _1 << ' ' ); c.clear(); cout.put( '\n' ); // 补 set_difference( a, a + 5, d, d + 3, back_inserter( c ) ); for_each( c.begin(), c.end(), cout << _1 << ' ' ); c.clear(); cout.put( '\n' ); // 差 set_difference( a, a + 5, b, b + 5, back_inserter( c ) ); for_each( c.begin(), c.end(), cout << _1 << ' ' ); c.clear(); cout.put( '\n' ); cin.get(); }