Submission #70977

#	Time	Username	Problem	Language	Result	Execution time	Memory
70977		RezwanArefin01	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	89 ms	26508 KiB

molecules

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

vector<int> find_subset(int L, int u, vector<int> w) {
    vector<int> v; 
    for(int i = 0; i < w.size(); i++) 
        v.push_back(i);
    sort(v.begin(), v.end(), [&](int i, int j) {
        return w[i] < w[j];
    }); 
    int l = 0, r = 0;
    long long sum = 0;
    while(l < w.size()) {
        while(r < w.size() && sum < L) {
            sum += w[v[r++]];
        } if(L <= sum && sum <= u) {
            vector<int> ans; 
            for(int i = l; i < r; i++) 
                ans.push_back(v[i]);
            return ans; 
        } sum -= w[v[l++]]; 
    }
    return {}; 
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:6:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < w.size(); i++) 
                    ~~^~~~~~~~~~
molecules.cpp:13:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(l < w.size()) {
           ~~^~~~~~~~~~
molecules.cpp:14:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while(r < w.size() && sum < L) {
               ~~^~~~~~~~~~

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