Submission #817958

#	Time	Username	Problem	Language	Result	Execution time	Memory
817958		vjudge1	Art Exhibition (JOI18_art)	C++17	100 / 100	158 ms	24684 KiB

art

/// @author : Hoang Manh Linh
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 5e5 + 5;
using i64 = long long;
using pll = pair<i64, i64>;
 
 
int n;
pll a[MAXN];
i64 dp[MAXN];
 
int main(int argc, char **argv) {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n;
 
    for(int i = 1; i <= n; i++)
        cin >> a[i].first >> a[i].second;
 
    sort(a + 1, a + n + 1);
 
    for(int i = 1; i <= n; i++)
        dp[i] = max(dp[i - 1] + a[i].second - (a[i].first - a[i - 1].first), a[i].second);
 
    i64 ans = *max_element(dp + 1, dp + n + 1);
    cout << ans;
}

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