Submission #739420

#	Time	Username	Problem	Language	Result	Execution time	Memory
739420		Abrar_Al_Samit	Detecting Molecules (IOI16_molecules)	C++17	19 / 100	3 ms	724 KiB

molecules

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

const int nax = 1000;

bitset<nax * 500 + 1>dp;
bool taken[nax];
vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size();

    dp[0] = 1;
    for(int i=0; i<n; ++i) {
        dp |= (dp<<w[i]);
    }

    int st = -1;
    for(int x=l; x<=u; ++x) {
        if(dp[x]) {
            st = x;
            break;
        }
    }  

    vector<int>ret; 
    if(st==-1) return ret;

    while(st) {
        int cand = -1;
        for(int i=0; i<n; ++i) if(!taken[i] && st-w[i]>=0 && dp[st-w[i]]) {
            if(cand==-1 || w[cand] < w[i]) cand = i;
        }
        if(cand==-1) assert(false);
        ret.push_back(cand);
        st -= w[cand];
        taken[cand] = true;
    }

    return ret;
}

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