Submission #807577

#	Time	Username	Problem	Language	Result	Execution time	Memory
807577		annabeth9680	Just Long Neckties (JOI20_ho_t1)	C++17	100 / 100	83 ms	10844 KiB

ho_t1

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

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int N; cin >> N;
    vector<pair<int,int>> arr(N+1);
    for(int i = 0;i<=N;++i){
        cin >> arr[i].first;
        arr[i].second = i;
    }
    sort(arr.begin(),arr.end());
    vector<int> brr(N);
    for(int i = 0;i<N;++i) cin >> brr[i];
    sort(brr.begin(),brr.end());
    vector<int> pref(N),suf(N);
    for(int i = 0;i<N;++i){
        if(i == 0){
            pref[i] = max(arr[i].first-brr[i],0);
        }
        else{
            pref[i] = max(max(arr[i].first-brr[i],0),pref[i-1]);
        }
    }
    for(int i = N-1;i>=0;--i){
        if(i == N-1){
            suf[i] = max(arr[i+1].first-brr[i],0);
        }
        else{
            suf[i] = max(max(arr[i+1].first-brr[i],0),suf[i+1]);
        }
    }
    vector<int> ans(N+1);
    for(int i = 0;i<=N;++i){
        if(i == 0) ans[arr[i].second] = suf[i];
        else if(i == N) ans[arr[i].second] = pref[N-1];
        else{
            ans[arr[i].second] = max(suf[i],pref[i-1]);
        }
    }
    for(int i = 0;i<=N;++i) cout << ans[i] << " ";
    cout << "\n";
    return 0;
}

• Subtask 1: 1 / 1
• Subtask 2: 8 / 8
• Subtask 3: 91 / 91