#include<iostream>#include<algorithm>#include<functional>#include<vector>#include<string>usingnamespacestd;classstudent{public: student(conststring &a,intb):name(a), score(b){} string name;intscore;booloperator< (conststudent &m)const{returnscore< m.score; } };intmain() { vector< student>...
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>())...
std::partial_sort:Partially sort elements in range. Rearranges the elements in the range [first,last), in such a way that the elements before middle are the smallest elements in the entire range and are sorted in ascending order, while the remaining elements are left without any specific ord...
end(), [](const string& a, const string& b) { return a.size() < b.size(); } ) C++ Primer 5e 在 11.2 节则对比较器的限制做了说明: Just as we can provide our own comparison operation to an algorithm, we can also supply our own operation to use in place of the < operator ...
// CPP program to illustrate // Implementation of sort() function #include<iostream> #include<forward_list> #include<string> usingnamespacestd; boolcomparator(stringa,stringb){ returna.length()<=b.length(); } intmain() { // forward list declaration of string type ...
__STL_REQUIRES(_Tp, _LessThanComparable); if (__a < __b) if (__b < __c) return __b; else if (__a < __c) return __c; else return __a; else if (__a < __c) return __a; else if (__b < __c) return __c; ...
end(), [](const string& s1, const string& s2) { return s1.size() < s2.size(); // 按长度升序 }); for (const auto& str : v) cout << str << " "; return 0; } 输出结果: a is this test hello world 1.6. 排序自定义类型 std::sort() 支持排序用户定义的类型,只需提供比较...
stringa,b; }; //ASCII码中,所有大写字母排在所有小写字母前面,AZaz //而这题要求忽略大小写,所以不能直接用字符串的比较。自定义了一个lt函数,就是lessthan的意思 //先把两个字符串全部转化为小写,再比较大小(字典序) boollt(stringx,stringy)
returna.id<b.id; } intmain() { //数组 cout<<"数组"<<endl; MyClass arr[10]; srand(time(NULL)); for(inti=0; i<10; i++) arr[i].id=rand()%101; cout<<"before sort"<<endl; for(inti=0; i<10; i++) cout<<arr[i].id<<endl; ...
for (string &s : stringVec) cout << s << " "; return 0; } Edit & run on cpp.sh Things to know First as you can see the sorting function works almost the same as on an array but we just have to pass our arguments a little differently. Since the first parameter in sort() ...