#include <bits/stdc++.h>
 
using namespace std;
 
string ltrim(const string &);
string rtrim(const string &);
 
 
/*
 * Complete the 'countStudents' function below.
 *
 * The function is expected to return an INTEGER.
 * The function accepts INTEGER_ARRAY height as parameter.
 */
 
int countStudents(vector<int> height) {
    int n = height.size();
    vector<int> a;
    for (auto x: height) a.push_back(x);
    sort(a.begin(), a.end());
 
int ans = 0;
    for (int i = 0; i < n; i++) {
        if (height[i] != a[i]) ans++;
    }
    return ans;
}
int main()

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