Submission #960539

#	Time	Username	Problem	Language	Result	Execution time	Memory
960539		Trisanu_Das	Cake 3 (JOI19_cake3)	C++17	0 / 100	1 ms	348 KiB

cake3

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ff first
#define ss second

signed main(){
  int n, m;
  pair<int, int> a[n];
  for(int i = 0; i < n; i++) cin >> a[i].ss >> a[i].ff;
  sort(a, a + n);
  int ans = LLONG_MIN;
  for(int i = 0; i < n; i++){
    multiset<int> s;
    int val = 0;
    for(int j = i; j < n; j++){
      s.insert(a[i].ss);
      val += a[i].ss;
      if(s.size() > m){
        val -= *s.begin();
        s.erase(s.begin());
      }
      if(s.size() == m) ans = max(ans, val - 2 * (a[j].ff - a[i].ff));
    }
  }
  cout << ans << '\n';
}

Compilation message (stderr)

cake3.cpp: In function 'int main()':
cake3.cpp:19:19: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   19 |       if(s.size() > m){
      |          ~~~~~~~~~^~~
cake3.cpp:23:19: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   23 |       if(s.size() == m) ans = max(ans, val - 2 * (a[j].ff - a[i].ff));
      |          ~~~~~~~~~^~~~
cake3.cpp:9:21: warning: 'n' is used uninitialized in this function [-Wuninitialized]
    9 |   pair<int, int> a[n];
      |                     ^
cake3.cpp:19:19: warning: 'm' may be used uninitialized in this function [-Wmaybe-uninitialized]
   19 |       if(s.size() > m){
      |          ~~~~~~~~~^~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 19
• Subtask 3: 0 / 76