Submission #891893

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
891893	2023-12-24 11:38:16	goodspeed0208	Art Exhibition (JOI18_art)	C++14	100 / 100	291 ms	56372 KiB

art

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#include<iostream>
#include<vector>
#include<algorithm>
#include<set>
#include<map>
#include<utility>
#define int long long
#define INF 1000000000000000000
#define pii pair<long long, long long>
using namespace std;
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  vector<pii>v(n);
  for(int i = 0 ; i < n ; i++) cin >> v[i].first >> v[i].second;
  sort(v.begin(), v.end());
  vector<int>psum(n);
  psum[0] = v[0].second;
  for (int i = 1 ; i < n ; i++) psum[i] = psum[i-1] + v[i].second;
  
  int start = 0, end = n-1;
  set<pii>st;
  st.insert({0, n-1});
  for (int i = n-2 ; i >= 0 ; i--) {
    int t = (v[n-1].first - v[i].first) - (psum[n-1] - psum[i]);
    st.insert({t, i});
    /*if (v[n-1].first - v[i].first > psum[n-1] - psum[i]) end = i;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:24:6: warning: unused variable 'start' [-Wunused-variable]
   24 |  int start = 0, end = n-1;
      |      ^~~~~
art.cpp:24:17: warning: unused variable 'end' [-Wunused-variable]
   24 |  int start = 0, end = n-1;
      |                 ^~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50