set_union (1) template<classInputIt1,classInputIt2,classOutputIt>OutputIt set_union(InputIt1 first1, InputIt1 last1, InputIt2 first2, InputIt2 last2, OutputIt d_first){for(;first1!=last1;++d_first){if(first2==last2)returnstd::copy(first1, last1, d_first);if(*first2<*first...
std::set_union Defined in header<algorithm> template<classInputIt1,classInputIt2,classOutputIt> OutputIt set_union(InputIt1 first1, InputIt1 last1, InputIt2 first2, InputIt2 last2, OutputIt d_first); (1)(constexpr since C++20) ...
back_inserter(http://zh.cppreference.com/w/cpp/iterator/back_inserter) #include <bits/stdc++.h>usingnamespacestd;constintmaxn =123;intn;intnum[maxn];intmain(){set<int>a, b; vector<int>c; a= {2,4,6}; b= {1,2,3,4,5};//传入的a,b不一定是set, 但一定要有序set_union(a....
set_union computes the union of two sets (function template) set_intersection computes the intersection of two sets (function template) ranges::set_symmetric_difference (C++20) computes the symmetric difference between two sets(niebloid) Retrieved from "https://en.cppreference.com/mwi...
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// alg_set_union.cpp // compile with: /EHsc #include <vector> #include <algorithm> #include <functional> // For greater<int>( ) #include <iostream> // Return whether modulus of elem1 is less than modulus of elem2 bool mod_lesser ( int elem1, int elem2 ) { if ( elem1 < 0 ...
STL中set求交集、并集、差集的⽅法并集（http://zh.cppreference.com/w/cpp/algorithm/set_union）交集（http://zh.cppreference.com/w/cpp/algorithm/set_intersection）差集（http://zh.cppreference.com/w/cpp/algorithm/set_difference）inserter(http://zh.cppreference.com/w/cpp/iterator/inserter)back_...
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cout << "Union:" << endl << sdResult << endl; sdResult.erase(sdResult.begin(),sdResult.end()); set_intersection(sd.begin(),sd.end(), sd2.begin(),sd2.end(), inserter(sdResult,sdResult.begin())); cout << "Intersection:" << endl << sdResult << endl; ...