Submission #961905

#	Time	Username	Problem	Language	Result	Execution time	Memory
961905		KasymK	Art Exhibition (JOI18_art)	C++17	0 / 100	0 ms	348 KiB

art

#include "bits/stdc++.h"
using namespace std;
 
#define int long long
 
signed main(){
    int n;
    scanf("%lld", &n);
    vector<pair<int, int>> v(n);
    for(int i = 0; i < n; ++i)
        scanf("%lld %lld", &v[i].first, &v[i].second);
    sort(v.begin(), v.end());
    vector<int> pref(n + 1);
    for(int i = 1; i <= n; ++i)
        pref[i] = pref[i - 1] + v[i - 1].second;
    int mx = -1e18;
    for(int i = 0; i * i < n; ++i)
        for(int j = i; j < n; ++j){
            int S = pref[j + 1] - pref[i];
            int diff = v[j].first - v[i].first;
            mx = max(mx, S - diff);
        }
    // for(int i = 0; i < n; ++i)
    //     for(int j = i; j < n; ++j){
    //         int S = pref[j + 1] - pref[i];
    //         int diff = v[j].first - v[i].first;
    //         if(mx == S - diff){
    //             cout << "i = " << i << "\n";
    //             cout << "j = " << j << "\n";
    //             break;
    //         }
    //     }
    printf("%lld\n", mx);
    return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     scanf("%lld", &n);
      |     ~~~~~^~~~~~~~~~~~
art.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%lld %lld", &v[i].first, &v[i].second);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50