Submission #254207

#	Time	Username	Problem	Language	Result	Execution time	Memory
254207		Atill83	Art Exhibition (JOI18_art)	C++14	0 / 100	0 ms	384 KiB

art

#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 5e5+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
ll pre[MAXN];

struct p{
    ll v, s;
    bool operator < (p other) const{
        if(s == other.s){
            return v < other.v;
        }
        return s < other.s;
    };
} ps[MAXN];


int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    #ifdef Local
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
    #endif

    cin>>n;

    for(int i = 0; i < n; i++){
        cin>>ps[i].s>>ps[i].v;
    }

    sort(ps, ps + n);
    
    pre[0] = ps[0].v;
    
    for(int i = 1; i < n; i++){
        pre[i] = pre[i - 1] + ps[i].v;
    }
    
    ll ans = ps[0].v,
       mx = ps[0].s;

    for(int i = 1; i < n; i++){
        ans = max(ans, pre[i] - ps[i].s + mx);
        mx = max(mx, -pre[i - 1] + ps[i].s);
    }

    cout<<ans<<endl;

    #ifdef Local
        cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

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