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Object element = *it; StdObjectSet::iterator cit = results[result_index].find(element);if(cit != results[result_index].end())//remove elements from results which already in dest set{ results[result_index].erase(cit); it++; }else{ it = destset->erase(it); DestroyObjectContent(element...
示例2:: // CPP program to illustrate the// unordered_set::erase() function#include<iostream>#include<string>#include<unordered_set>usingnamespacestd;intmain(){unordered_set<string> sampleSet = {"geeks1","for","geeks2"};// erases a particular elementsampleSet.erase("geeks1");// displayi...
169: inline void erase_if_helper(Cont& c, Pred p, associative_like_tag) 170: { 171: for (auto it = c.begin(); it != c.end(); /*nothing*/) 172: { 173: if (p(*it)) 174: c.erase(it++); //Rebalance the tree 175: //Must have an iterator to the next element 176: el...
2.1 std::find:查找单一元素(Searching for a Single Element) std::find是一个用于在容器中查找单一元素的算法。它接受两个迭代器(表示搜索范围的开始和结束)和一个值,然后返回一个指向找到的元素的迭代器。 #include <algorithm>#include <vector>#include <iostream>int main() {std::vector<int> vec = ...
2: B 3: C ExampleIn the following example, we are going to erase the element by using the range of the iterator.Open Compiler #include <iostream> #include int main() { std::multimap<int, std::string> a = { {1, "Hi"}, {2, "Hello"}, {3, "Namaste"}, {3, "Vanakam"} }...
c - container from which to erase value - value to be removed pred - unary predicate which returns true if the element should be erased. The expression pred(v) must be convertible to bool for every argument v of type (possibly const) T, regardless of value category, and must ...
size() == 13 The number of elements removed from s3 is: 1. After the element with a key of "E#" is deleted, the set s3 is: [A] [A#] [B] [C] [C#] [D] [D#] [E] [F] [F#] [G] [G#] size() == 12
set::erase() functionis a predefined function, it is used to erase an element from a set. The function is used to erase an element based on its value or iterator position from the set. Syntax set<T> st; //declaration set<T>::iterator it; //iterator declaration st.erase( const T ...
[C] [C#] [D] [D#] [E] [E#] [F] [F#] [G] [G#] size() == 13 The number of elements removed from s3 is: 1. After the element with a key of "E#" is deleted, the set s3 is: [A] [A#] [B] [C] [C#] [D] [D#] [E] [F] [F#] [G] [G#] size() == ...