제출 #1049812

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1049812		vjudge1	Art Exhibition (JOI18_art)	C++17	0 / 100	1 ms	4440 KiB

art

#include <bits/stdc++.h>

#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,lzcnt,mmx,abm,avx,avx2,fma")
#pragma GCC optimize("Ofast,unroll-loops,no-stack-protector,fast-math,inline")

using namespace std;

#define speed ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
#define vc vector
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define ll long long
#define all(x) x.begin(),x.end()
#define sz(x) (int)x.size()
#define int ll

const int N = 5e5 + 5;
const int M = 5e5 + 5;
const int mod = 1e9 + 7;
const int block = 500;

int n;
ll a[N], b[N], pref[N];

void solve() {
	cin >> n;
    vc <pair<ll,ll>> save;
    for ( int i = 1; i <= n; i++ ) {
        cin >> a[i] >> b[i];
        save.pb(mp(a[i],b[i]));
    }
    sort(all(save));
    ll ans = save[0].se;
    ll res = save[0].se;
    int l = 1;
    for ( int i = 2; i <= n; i++ ) {
        ans += save[i-1].se;
        if ( l != i - 1 ) {
            ll sum = save[i-1].se + save[i-2].se + save[i-2].fi;
            if ( sum > ans ) {
                ans = sum;
                l = i - 1;
            }
        }
        else {
            ans += save[i-2].fi;
        }
        res = max(res,ans-save[i-1].fi);
    }
    cout << res;
}

signed main() {
	speed;
	int tt;
	//cin >> tt;
    tt = 1;
	while ( tt-- ) {
		solve();
		cout << '\n';
	}
}

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