Submission #200117

#	Time	Username	Problem	Language	Result	Execution time	Memory
200117		aloo123	Stove (JOI18_stove)	C++14	0 / 100	5 ms	376 KiB

stove

#include <iostream>
#include <algorithm>
#define ll long long
#define ld long double
#define f first
#define s second
#define mp make_pair
#define pb push_back
#define vll vector<ll>
#define pll pair<ll,ll>
using namespace std;

const ll N = 5e5+100;
const ll MOD = 1e9+7;
ll pre[N];
ll maxx[N];
int main()
{
    ios_base::sync_with_stdio(0);
    //cin.tie(0);
    ll n;
    cin>>n;


    pll a[n+1];
    for(int i =1;i<=n;i++)cin>>a[i].f >> a[i].s;

    sort(a+1,a+n+1);
    for(int i =1;i<=n;i++){
        pre[i] = pre[i-1] + a[i].s;
    }

    for(int i =1;i<=n;i++){
        maxx[i] = max(maxx[i-1],a[i].f-pre[i-1]);
    }


    ll ans = 0;
        for(int j =1;j<=n;j++){ 
            ans = max(ans,(pre[j]-a[j].f) + (maxx[j]));
        }
    
    cout<<ans<<endl;

    
    return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50