제출 #616248

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
616248		jairRS	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	61 ms	8252 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;
using pii = pair<long long, long long>;
#ifndef LOCALDEBUG
#define LOCALDEBUG false
#endif

vi find_subset(int l, int u, vi w) {
    vector<pii> molecules;
    for (int i = 0; i < w.size(); i++)
        molecules.push_back({w[i], i});
    molecules.push_back({1e18, -1});
    sort(molecules.begin(), molecules.end());

    long long curSum = 0;
    int frontPtr = 0;
    for (int i = 0; i < molecules.size(); i++)
    {
        pii cur = molecules[i];
        curSum += cur.first;

        if(curSum > u){
            curSum -= molecules[frontPtr].first;
            frontPtr++;
        }

        if(l <= curSum && curSum <= u){
            vi ans;
            for (int k = frontPtr; k <= i; k++)
                ans.push_back(molecules[k].second);
            return ans;
        }
    }

    return vi();
}

컴파일 시 표준 에러 (stderr) 메시지

molecules.cpp: In function 'vi find_subset(int, int, vi)':
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<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for (int i = 0; i < molecules.size(); i++)
      |                     ~~^~~~~~~~~~~~~~~~~~

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