제출 #232416

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
232416		UserIsUndefined	Detecting Molecules (IOI16_molecules)	C++14	31 / 100	603 ms	65540 KiB

molecules

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


map<pair<int,int> , bool> dp;




std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    int n = w.size();


    for (int i = 0 ; i <= n ; i++){
        dp[{i,0}] = true;
    }

    for (int j = 0 ; j <= u ; j++){
        for (int i = 0 ; i < n ; i++){
            if (w[i] <= j)dp[{i+1,j}]|= dp[{i,j - w[i]}];
            dp[{i+1,j}]|= dp[{i,j}];
        }
    }

    int k = -1;

    for (int i = l ; i <= u ; i++){
        if (dp[{n,i}]){
            k = i;
            break;
        }
    }

    vector<int> ans;


    if (k == -1)return ans;


    for (int i = n ; i >= 1  ; i--){
        if (dp[{i-1,k - w[i - 1]}]){
            ans.push_back(i - 1);
            k-= w[i-1];
            if (k == 0)return ans;
        }
    }

    return ans;


}

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