#include <bits/stdc++.h>
using namespace std;
int main()
{
int n = 5, t;
vector<int> a, b;
for (int i = 0; i < n; ++i)
{
scanf("%d", &t);
a.push_back(t);
b.push_back(i);
}
sort(b.begin(), b.end(), [&a](int x, int y)
{
return a[x] < a[y];
});
cout<<"b:";
for(auto x: b)
cout<<x<<" ";
cout<<endl<<"a:";
for(auto x: a)
cout<<x<<" ";
}
将b中元素按照a中元素大小排序,b数组中的值应该是0,1,2...n-1,这样在比较的时候可以直接将b中的元素作为a的下标来比较。
标签:实现,元素,back,C++,int,push,argosort From: https://www.cnblogs.com/hetailang/p/16839514.html