Submission #1326266

#	Time	Username	Problem	Language	Result	Execution time	Memory
1326266		hoangtien69	Art Exhibition (JOI18_art)	C++20	100 / 100	126 ms	12092 KiB

art

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
const int MAXN = 5e5 + 5;

int n;
pii a[MAXN];
int dp[MAXN];

signed main()
{
    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);
    int maxx = 0;
    for (int i = 1; i <= n; i++)
    {
        dp[i] = max(a[i].second, maxx - a[i].first + a[i].second);
        maxx = max(maxx, dp[i] + a[i].first);
    }
    int res = -1;
    for (int i = 1; i <= n; i++)
    {
        res = max(res, dp[i]);
    }
    cout << res;
}

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