제출 #1263067

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1263067		silentloop	Detecting Molecules (IOI16_molecules)	C++20	9 / 100	0 ms	328 KiB

molecules

#include <bits/stdc++.h>
#define ll long long
#define sz(x) int(x.size())
#define fr first
#define se second
#define pb push_back
#define mp make_pair
#define all(x) x.begin(), x.end()
using namespace std;

vector<int> arm(vector<pair<int, int>> &dp, int j)
{
    ll sig = j;
    vector<int> ans;
    while (sig >= 0)
    {
        if (dp[sig].se >= 0)
            ans.pb(dp[sig].se);
        sig = dp[sig].fr;
    }

    return ans;
}

std::vector<int> find_subset(int l, int u, std::vector<int> w)
{
    vector<int> ans;
    if (l > u)
        return ans;

    vector<pair<ll, ll>> v;
    ll i, j, ma=0, maI=0;
    for (i = 0; i < sz(w); i++)
    {
        v.pb({w[i], i});
    }
    sort(all(v));
    i=sz(v)-1;
    while(i>=0&&l>v[i].fr*2)
    {
        l=l-v[i].fr;
        u=u-v[i].fr;
        ans.pb(v[i].se);
        for(j=0; j<sz(v); j++)
        {
            if(l<=v[j].fr&&v[j].fr<=u)
                return ans;
        }
        
        i--;
    }
    while(i+1<sz(v))
        v.pop_back();
    if(i<0)
    {
        ans.resize(0);
        return ans;
    }
    vector<pair<int, int>> dp(u + 1);
    vector<bool> pos(u + 1);
    pos[0] = 1;
    dp[0].fr = -1;
    dp[0].se = -1;
    for (i = 0; i < sz(v); i++)
    {
        ll x = v[i].fr;
        int nod = v[i].se;
        for (j = u; j >= x; j--)
        {
            if (pos[j])
                continue;
            if (pos[j - x])
            {
                pos[j] = 1;
                dp[j].fr = j - x;
                dp[j].se = nod;
                if (j >= l)
                {
                    vector<int>ret=arm(dp, j);
                    for(auto k:ret)
                        ans.pb(k);
                    return ans;
                } 
                    
            }
        }
    }
    ans.resize(0);
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

• Subtask 1: 9 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31