Submission #305920

#	Time	Username	Problem	Language	Result	Execution time	Memory
305920		kylych03	Detecting Molecules (IOI16_molecules)	C++14	69 / 100	53 ms	4216 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector <int> res,res1,pr;
    vector <pair<int, int> > a;
    a.resize(w.size());
    pr.resize(w.size()+1);

    for(int i = 0 ; i < w.size(); i++){
        a[i].first = w[i];
        a[i].second = i;
    }
    sort(a.begin(), a.end());
    int sum = 0;
    pr[0]=0;
    for(int i = 0 ; i < w.size(); i++){
        pr[i+1] =pr[i] + a[i].first;
    }
    int cnt=0;
    for(int i=1;i<=a.size(); i++){
        if(pr[i] - pr[cnt] > u ){
            cnt++;
        }
        if(pr[i] - pr[cnt] <= u && pr[i] - pr[cnt]>=l){
            for(int j = cnt;j<i; j++ )
                res.push_back(a[j].second);
            break;
        }

    }

    return res;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for(int i = 0 ; i < w.size(); i++){
      |                     ~~^~~~~~~~~~
molecules.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(int i = 0 ; i < w.size(); i++){
      |                     ~~^~~~~~~~~~
molecules.cpp:23:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for(int i=1;i<=a.size(); i++){
      |                 ~^~~~~~~~~~
molecules.cpp:17:9: warning: unused variable 'sum' [-Wunused-variable]
   17 |     int sum = 0;
      |         ^~~

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