Submission #40036

#	Time	Username	Problem	Language	Result	Execution time	Memory
40036		igzi	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	71 ms	6868 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"
#define maxN 200002

using namespace std;

struct molekul{
long long x,p;
};

bool poredi(molekul a,molekul b){
    return a.x<b.x;
}

vector <int> find_subset(int l,int u,vector <int> w){
    long long i,a,b,k;
    molekul m[maxN];
    vector <int> v;
    for(i=0;i<w.size();i++){
        m[i].x=w[i];
        m[i].p=i;
    }
    a=b=k=0;
    sort(m,m+w.size(),poredi);
    while(k<w.size() && b<l){
        a+=m[k].x;
        b+=m[w.size()-1-k].x;
        k++;
    }
    if(b>=l && a<=u){
        int x=k;
        while(a<l){
            a+=m[x].x-m[x-k].x;
            x++;
        }
        for(i=x-k;i<x;i++){
            v.push_back(m[i].p);
        }
    }
    return v;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:19:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0;i<w.size();i++){
              ^
molecules.cpp:25:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(k<w.size() && b<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