Submission #855771

#	Time	Username	Problem	Language	Result	Execution time	Memory
855771		annabeth9680	Just Long Neckties (JOI20_ho_t1)	C++17	100 / 100	78 ms	10848 KiB

ho_t1

#include <bits/stdc++.h>
#define f first
#define s second
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>> A(N+1);
    vector<int> B(N);
    for(int i = 0;i<=N;++i){
        cin >> A[i].f;
        A[i].s = i;
    }
    for(int i = 0;i<N;++i) cin >> B[i];
    sort(A.begin(),A.end()); sort(B.begin(),B.end());
    vector<int> pref(N);
    for(int i = 0;i<N;++i){
        if(i != 0) pref[i] = max(pref[i-1],max(A[i].f-B[i],0));
        else pref[i] = max(A[i].f-B[i],0);
        //cout << pref[i] << "\n";
    }
    vector<int> suf(N+1);
    for(int i = N;i>=1;--i){
        if(i != N) suf[i] = max(suf[i+1],max(A[i].f-B[i-1],0));
        else suf[i] = max(A[i].f-B[i-1],0);
    }
    vector<int> ans(N+1);
    for(int i = 0;i<=N;++i){
        if(i != N && i != 0) ans[A[i].s] = max(suf[i+1],pref[i-1]);
        else if(i == N) ans[A[i].s] = pref[i-1];
        else ans[A[i].s] = suf[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