Submission #1132194

#	Time	Username	Problem	Language	Result	Execution time	Memory
1132194		lopkus	Detecting Molecules (IOI16_molecules)	C++20	0 / 100	0 ms	324 KiB

molecules

#include <bits/stdc++.h>

#include "molecules.h"

using namespace std;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    sort(w.begin(), w.end());
    int n = w.size();
    for(int i = 0; i < n; i++) {
        if(w[i] >= l && w[i] <= u) {
            return {w[i]};
        }
    }
    int idx = - 1;
    for(int i = 0; i < n; i++) {
        if(w[i] < l) {
            idx = i;
        }
    }
    if(idx == - 1) {
        return {};
    }
    vector<int> p;
    for(int i = idx; i >= 0; i--) {
        if(u - l >= w[idx] - w[i]) {
            p.push_back(w[i]);
        }
    }
    sort(p.begin(), p.end());
    vector<int> ans;
    vector<int> was(n, 0);
    while(l > 0) {
        int o = - 1;
        for(int i = 0; i < p.size(); i++) {
            if(was[i]) {
                continue;
            }
            if(p[i] >= l && p[i] <= u) {
                o = p[i];
                break;
            }
        }
        if(o != - 1) {
            ans.push_back(o);
            return ans;
        }
        for(int i = 0; i < p.size(); i++) {
            if(was[i]) {
                continue;
            }
            if(p[i] < l) {
                o = i;
            }
        }
        if(o == - 1) {
            return {};
        }
        l -= p[o];
        u -= p[o];
        was[o] = 1;
        ans.push_back(p[o]);
    }
    return ans;
}

Compilation message (stderr)

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