Submission #1093123

#	Time	Username	Problem	Language	Result	Execution time	Memory
1093123		ch0c0p13	Art Exhibition (JOI18_art)	C++14	100 / 100	156 ms	28756 KiB

art

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

#define ll long long
#define ld long double
#define ull unsigned long long
#define pii pair<int,int>
#define pll pair<long long, long long>
#define fi first
#define se second
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define lwb lower_bound
#define upb upper_bound

#define TASKNAME "NAME"

void init()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    ///freopen(TASKNAME".INP","r",stdin); freopen(TASKNAME".OUT","w",stdout);
}

const int maxN = 1e6+5;
const ll INF = 2e9, MOD = 1e9+7, INFLL = 2e18;
const double epsilon = 1e-3;

int n;
pll a[maxN];
ll sum[maxN], mx[maxN];

int main()
{
    init();
    cin >> n;
    for(int i = 1; i <= n; i++)
    {
        cin >> a[i].fi >> a[i].se;
    }
    sort(a + 1, a + n + 1);
    ll res = 0;
    for(int i = 1; i <= n; i++)
    {
        sum[i] = sum[i-1] + a[i].se;
        mx[i] = max(mx[i-1], a[i].fi - sum[i-1]);
        res = max(res, sum[i] - a[i].fi + mx[i]);
    }
    cout << res;
}

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