Submission #394531

#	Time	Username	Problem	Language	Result	Execution time	Memory
394531		idk321	Detecting Molecules (IOI16_molecules)	C++11	46 / 100	164 ms	532 KiB

molecules

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


const int M = 10005;

int dp[M];

std::vector<int> find_subset(int l, int u, std::vector<int> w) {


    vector<int> res;

    for (int i = 0; i < M; i++)
    {
        dp[i] = -1;
    }
    dp[0] = 0;
    for (int i = 0; i < w.size(); i++)
    {
        for (int j = M - 1 - w[i]; j >= 0; j--)
        {
            if (dp[j] != -1 && dp[j + w[i]] == -1)
            {
                dp[j + w[i]] = i;
            }
        }
    }

    for (int i = l; i <= u; i++)
    {
        if (dp[i] != -1)
        {
            int cur = i;
            while (cur != 0)
            {
                res.push_back(dp[cur]);
                cur -= w[dp[cur]];
            }
            break;
        }
    }

    return res;
}

/*

7
15 16
5 5 5 5 6 6 6
*/

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for (int i = 0; i < w.size(); i++)
      |                     ~~^~~~~~~~~~

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