Submission #527030

#	Time	Username	Problem	Language	Result	Execution time	Memory
527030		lcs147	Detecting Molecules (IOI16_molecules)	C++98	69 / 100	40 ms	2612 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 {};
 
    vector<int>id(w.size());
    iota(id.begin(), id.end(), 0);
    sort(id.begin(), id.end(), [&](int a, int b){
        return w[a] < w[b];
    });
 
    int i, j, sum = 0;
    for(i=0, j=0; j<id.size(); j++) {
        int jj = id[j];
        sum += w[jj];
        while(sum > r) {
        	int ii = id[i];
            sum -= w[ii];
            i++;
        }
        if(sum >= l) break;
    }
 
    vector<int>res;
    if(sum >= l) {
        for(int x=i; x<=j; x++) {
            res.push_back(id[x]);
        }   
    }
    sort(res.begin(), res.end());
    return res;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:15:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for(i=0, j=0; j<id.size(); j++) {
      |                   ~^~~~~~~~~~

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