Submission #967660

#	Time	Username	Problem	Language	Result	Execution time	Memory
967660		njoop	Art Exhibition (JOI18_art)	C++14	0 / 100	1 ms	348 KiB

art

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

int n, l=1, r=1, sum, ans;
pair<int, int> arr[100010];

signed main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n;
    for(int i=1; i<=n; i++) {
        cin >> arr[i].first >> arr[i].second;
    }
    sort(arr+1, arr+n+1);
    sum = arr[1].second;
    ans = max(ans, sum);
    while(true) {
        while(l < r && arr[l].second <= arr[l+1].first-arr[l].first) {
            sum += arr[l+1].first-arr[l].first-arr[l].second;
            l++;
        }
        ans = max(ans, sum);
        if(r == n) break;
        r++;
        sum += arr[r].second - arr[r].first + arr[r-1].first;
        if(sum < 0) {
            l = r+1;
            r++;
            sum = arr[r].second;
        }
        ans = max(ans, sum);
    }
    cout << ans;
}

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