Submission #433882

#	Time	Username	Problem	Language	Result	Execution time	Memory
433882		LouayFarah	Xylophone (JOI18_xylophone)	C++14	0 / 100	2 ms	200 KiB

xylophone

#include "bits/stdc++.h"
#include "xylophone.h"
using namespace std;
 
#define pb push_back
 
void solve(int n)
{
    vector<int> arr(n+1);
    /*for(auto elt: arr)
        cout << elt << ' ';
    cout << endl;*/
    /*orig.resize(n+1);
    for(int i = 1; i<=n; i++)
        cin >> orig[i];*/
 
    int l = 1, r = n-1;
    int maxdif = n-1;
    while(maxdif==n-1)
    {
        maxdif = query(l, r);
        r--;
    }
    r+=2, l++;
    maxdif = n-1;
    while(maxdif==n-1)
    {
        maxdif = query(l, r);
        l++;
    }
    l-=2;
 
    arr[l] = 1;
    arr[r] = n;
 
    //cout << l << ' ' << r << endl;
 
    if(r-l>1)
    {
        maxdif = query(l, l+1);
        arr[l+1] = maxdif+1;
    }
 
    for(int i = l+2; i<r; i++)
    {
        int dif = query(l, i);
        if(dif==maxdif)
        {
            int dif2 = query(l+1, i);
            arr[i] = arr[l+1]-dif2;
        }
        else
        {
            arr[i] = dif + 1;
        }
    }
 
    if(l>1)
    {
        maxdif = query(l-1, l);
        arr[l-1] = maxdif+1;
    }
    for(int i = l-2; i>=1; i--)
    {
        int dif = query(i, l);
        if(dif==maxdif)
        {
            int dif2 = query(l-1, i);
            arr[i] = arr[l-1]-dif2;
        }
        else
        {
            arr[i] = dif+1;
        }
    }
    if(r<n)
    {
        maxdif = query(r, r+1);
        arr[r+1] = n-maxdif;
    }
 
    for(int i = r+2; i<=n; i++)
    {
        int dif = query(r, i);
        if(dif==maxdif)
        {
            int dif2 = query(r+1, i);
            arr[i] = arr[r+1] + dif2;
        }
        else
        {
            arr[i] = n-dif;
        }
    }
 
    for(int i = 1; i<=n; i++)
    {
        answer(i, arr[i]);
    }
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 36
• Subtask 3: 0 / 53