Submission #526984

#	Time	Username	Problem	Language	Result	Execution time	Memory
526984		lcs147	Detecting Molecules (IOI16_molecules)	C++98	46 / 100	341 ms	65540 KiB

molecules

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

vector<int>find_subset(int l, int r, vector<int> w) {
    if(l > r) return {};

    int n = w.size();
    vector<vector<bool>>pd(n+1, vector<bool>(r));
    for(int i=l; i<=r; i++) pd[n][i] = true;
    for(int i=n-1; i>=0; i--) {
        for(int j=0; j<=r; j++) {
            pd[i][j] = pd[i+1][j];
            if(j + w[i] <= r) pd[i][j] = (pd[i+1][j] || pd[i+1][j+w[i]]);
        }
    }

    int i=0, j=0;
    vector<int>res;
    while(i<n) {
        if(!pd[i][j]) return {};
        if(pd[i][j] != pd[i+1][j]) {
            res.push_back(i);
            j += w[i];
        }
        i++;
    }
    return res;
}

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