Submission #752931

#	Time	Username	Problem	Language	Result	Execution time	Memory
752931		bgnbvnbv	Art Exhibition (JOI18_art)	C++14	50 / 100	66 ms	18560 KiB

art

#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<int,int>
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=2e5;
const ll inf=1e18;
const ll mod=1e9+7;
#define int ll
ll a[maxN],pre[maxN],b[maxN],n,ans=-inf;
void solve()
{
    vector<pli>vec;
    cin >> n;
    for(int i=1;i<=n;i++) cin >> a[i] >> b[i],vec.pb({a[i],b[i]});
    sort(vec.begin(),vec.end());
    for(int i=1;i<=n;i++)
    {
        a[i]=vec[i-1].fi;
        b[i]=vec[i-1].se;
    }
    ll mn=inf;
    for(int i=1;i<=n;i++)
    {
        pre[i]=pre[i-1]+b[i];
        mn=min(mn,pre[i-1]-a[i]);
        ans=max(ans,pre[i]-a[i]-mn);
    }
    cout << ans;
}
signed main()
{
    fastio
    //freopen(TASKNAME".INP","r",stdin);
    //freopen(TASKNAME".OUT","w",stdout);
    solve();
}

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