Submission #89057

#	Time	Username	Problem	Language	Result	Execution time	Memory
89057		Lkvatashidze	Schools (IZhO13_school)	C++17	5 / 100	455 ms	17068 KiB

school

#include <bits/stdc++.h>
#define ll long long
using namespace std;

   multiset < pair < int, int > > x;
   vector < pair < int, int > > v;

 int main() {

    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

     int n, m, s;
      cin >> n >> m >> s;

      for (int k=1; k<=n; k++) {
         int z, y;
         cin >> z >> y;
         v.push_back({z,y});
         x.insert({(z-y),-y});
      }

       sort(v.begin(),v.end());
       reverse(v.begin(),v.end());

           ll ans=0;

       for (int k=0; k<n; k++) {

        if (s==0 && m==0) break;

         if (s==0) {
           ans+=v[k].first;
           m--;
           continue;
         }

         if (m==0) {
            while (s) {
                ans-=(*x.begin()).second;
                s--;
                x.erase(x.begin());
            }
            continue;
        }

         pair < int, int > p=(*x.begin());
         x.erase(x.begin());

          if (p.first==v[k].first-v[k].second && p.second+v[k].second==0) {
              ans+=v[k].second;
              s--;
        } else {
          ans+=v[k].first;
          m--;
        }
    }

           cout << ans;

    return 0;
}

• Subtask 1: 5 / 100