Submission #1005701

#	Time	Username	Problem	Language	Result	Execution time	Memory
1005701		MarwenElarbi	Just Long Neckties (JOI20_ho_t1)	C++17	100 / 100	73 ms	10836 KiB

ho_t1

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#define fi first
#define se second
#define ll long long
#define pb push_back
#define ii pair<int,int>
template <class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const int nax=2e5+5;
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
int main()
{
    optimise;   
    int n;
    cin>>n;
    vector<pair<int,int>> a(n+1);
    vector<int> b(n);
    for (int i = 0; i < n+1; ++i)
    {
        cin>>a[i].fi;
        a[i].se=i;
    }
    for (int i = 0; i < n; ++i)
    {
        cin>>b[i];
    }
    sort(a.begin(),a.end());
    sort(b.begin(),b.end());
    int pre[n+1];
    int suf[n+1];
    pre[0]=max(0,a[0].fi-b[0]);
    pre[n]=0;
    suf[0]=0;
    suf[n]=max(0,a[n].fi-b[n-1]);
    for (int i = 1; i < n; ++i)
    {
        pre[i]=max(max(a[i].fi-b[i],0),pre[i-1]);
    }
    for (int i = n-1; i > 0; --i)
    {
        suf[i]=max(max(a[i].fi-b[i-1],0),suf[i+1]);
    }
    vector<int> ans(n+1);
    for (int i = 0; i <= n; ++i)
    {
        if(i>0&&i<n) ans[a[i].se]=max(pre[i-1],suf[i+1]);
        else if(i==0) ans[a[i].se]=suf[i+1];
        else ans[a[i].se]=pre[i-1];
    }
    for (int i = 0; i <= n; ++i)
    {
        cout <<ans[i]<<" ";
    }cout <<endl;
}

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