记得,以前翻译过Effective STL的文章,其中对如何选择排序函数总结的很好: 若需对vector, string, deque, 或 array容器进行全排序,你可选择sort或stable_sort; 若只需对vector, string, deque, 或 array容器中取得top n的元素,部分排序partial_sort是首选. 若对于vector, string, deque, 或array容器,你需要找到第...
记得,以前翻译过Effective STL的文章,其中对如何选择排序函数总结的很好: 若需对vector, string, deque, 或 array容器进行全排序,你可选择sort或stable_sort; 若只需对vector, string, deque, 或 array容器中取得top n的元素,部分排序partial_sort是首选. 若对于vector, string, deque, 或array容器,你需要找到第...
// sort() in STL. #include<bits/stdc++.h> usingnamespacestd; intmain() { intarr[]={1,5,8,9,6,7,3,4,2,0}; intn=sizeof(arr)/sizeof(arr[0]); /*Here we take two parameters, the beginning of the array and the length n upto which we want the array to be sorted*/ sort...
Array after sorting : 9 8 7 6 5 4 3 2 1 0 还可以在自己定义排序的方式: // A C++ program to demonstrate // STL sort() using // our own comparator #include <bits/stdc++.h> using namespace std; // An interval has a start // time and end time struct Interval { int start, en...
STL中sort有如此多亲戚邻居 sort可谓是排序鼻祖,今天就来挖挖她的亲戚邻居! 1.sort() 默认升序: 代码语言:javascript 代码运行次数:0 复制 Cloud Studio代码运行 //默认lessstd::vector<int>numbers{99,77,33,66,22,88,44,88};std::sort(std::begin(numbers),std::end(numbers));std::copy(std::begin...
使用lambda 替代预制函数对象: cpp sort(v.begin(), v.end(), [](const MyClass& a, const MyClass& b) { return a.value < b.value; }); 4. 总结 默认排序:std::sort() 默认按升序排列。 自定义排序:通过 comp 指定比较规则,支持函数指针、lambda、或标准库函数对象。 预制比较函数:std::less,...
print(two_D_vector);//sorting the 2D array based on a particular row//here we sort the last row of the 2D vector//in descending order//so, basically we sort the 1D array in//descending order(the last row)sort(two_D_vector[2].begin(), two_D_vector[2].end(), greater<int>())...
print(two_D_vector);//sorting the 2D array based on a particular row//here we sort the last row of the 2D vector//in descending order//so, basically we sort the 1D array in//descending order(the last row)sort(two_D_vector[2].begin(), two_D_vector[2].end(), greater<int>())...
Whereas std::end() will return a iterator(pointer) to one past the last element in the array we pass it. So we could call the sort function by passing it begin() and end() like so. sort(begin(intArray), end(intArray)); Sorting Vectors and other STL Containers Example Warning: ...
重载运算符之后,可以在sort函数中通过less或greater或less_equal等来调整升序还是降序,默认是升序。 另外,重载运算符后,函数bool operator < 就不要了,否则用g++编译出错。 #include<algorithm> #include<iostream> #include<vector> usingnamespacestd;