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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int n, k;
  6.     cin >> n >> k;
  7.  
  8.     vector<int> values(n);
  9.     for(int i = 0; i < n; i++){
  10.         cin >> values[i];
  11.     }
  12.  
  13.     map<int,int> mp;
  14.     for(auto i: values){
  15.     	mp[i]++;
  16.     }
  17.  
  18.     // convert into vector<pair<int,int>>
  19.     vector<pair<int,int>> vp;
  20.     for(auto u: mp){
  21.     	vp.push_back({u.first, u.second});
  22.     }
  23.  
  24.     int noOfOperations = 0;
  25.  
  26.     for(int i = vp.size() - 1; i >= 1; i--){
  27.     	vp[i-1].second += vp[i].second;
  28.     	noOfOperations += vp[i].second;
  29.     	vp[i].second = 0;
  30.     }
  31.  
  32.     cout<<noOfOperations<<endl;
  33.  
  34.     return 0;
  35. }
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/8wcxQw
language:
C++14 (gcc 8.3)
created:
11 days ago
visibility:
public

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