remove_if不会改变容器的大小,也不会删除任何元素。如果您想删除remove_if移动的元素,您需要调用容器的erase方法。 当您使用remove_if删除vector中的元素时,它只会删除满足特定条件的第一个元素。如果您想删除所有满足条件的元素,您需要使用remove_copy_if算法。 以下是一个使用remove_if和erase删除vector...
vector<int>ivec; 21 copy(istream_iterator<int>(cin), istream_iterator<int>(), back_inserter(ivec)); 22 23 remove_copy_if(ivec.begin(), ivec.end(), ostream_iterator<int>(cout,""), isEven); 24 cout<<endl; 25 remove_copy_if(ivec.begin(), ivec.end(), ostream_iterator<int>...
19int main() { 20 vector<int> ivec; 21 copy(istream_iterator<int>(cin), istream_iterator<int>(), back_inserter(ivec)); 22 23 remove_copy_if(ivec.begin(), ivec.end(), ostream_iterator<int>(cout, " "), isEven); 24 cout << endl; 25 remove_copy_if(ivec.begin(), ivec....
在内部,remove遍历这个区间,把要“删除的”值覆盖为后面要保留的值。这个覆盖通过对持有被覆盖的值的元素赋值来完成。 你可以想象remove完成了一种压缩,被删除的值表演了在压缩中被填充的洞的角色。对于我们的vector v,它按照下面的表演: remove检测v[0],发现它的值不是要被删除的,然后移动到v[1]。同样的情况...
partial_sort, partial_sort_copy These algorithms haven't been evaluated yet. The library might implement parallelism in a future release: copy_if, includes, inplace_merge, lexicographical_compare, max_element, merge, min_element, minmax_element, nth_element, partition_copy, remove_copy, remove...
partial_sort, partial_sort_copy These algorithms haven't been evaluated yet. The library might implement parallelism in a future release: copy_if, includes, inplace_merge, lexicographical_compare, max_element, merge, min_element, minmax_element, nth_element, partition_copy, remove_copy, remove...
vector 数组 随机读改、尾部插入、尾部删除 O(1)头部插入、头部删除 O(n) 无序 可重复 支持随机访问 deque 双端队列 头尾插入、头尾删除 O(1) 无序 可重复 一个中央控制器 + 多个缓冲区,支持首尾快速增删,支持随机访问 forward_list 单向链表 插入、删除 O(1) 无序 可重复 不支持随机访问 list 双向链表...
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std::vector push_back memory corruption? stdafx not found stdafx.h(15) : fatal error C1083: Cannot open include file: 'afxwin.h': No such file or directory STDMETHODIMP Stop timer at any time and start it - MFC C++ string to wstring String validation. strstream how to remove trailing ze...