제출 #1018895

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1018895		AlgorithmWarrior	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	42 ms	5692 KiB

molecules

#include <cstdio>
#include <vector>
#include <cassert>
#include <algorithm>

#include "molecules.h"

using namespace std;

struct str
{
    int val;
    int ind;
};

bool crt(str a,str b)
{
    return a.val<b.val;
}

vector<int> find_subset(int l, int u, vector<int> w) {
    vector<str>date(w.size());
    int i;
    for(i=0;i<date.size();++i)
         date[i]={w[i],i};
    sort(date.begin(),date.end(),crt);
    vector<int>res;
    unsigned total=0;
    for(i=date.size()-1;i>=0;--i)
    {
        total+=date[i].val;
        res.push_back(date[i].ind);
        if(l<=total && total<=u)
            return res;
        if(total>u)
            break;
    }
    if(i==-1)
        return vector<int>(0);
    int care;
    for(care=0;i<date.size();++i,++care)
    {
        total-=date[i].val;
        total+=date[care].val;
        res[res.size()-1-care]=date[care].ind;
        if(l<=total && total<=u)
            return res;
    }
    return vector<int>(0);
}

컴파일 시 표준 에러 (stderr) 메시지

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:24:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<str>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(i=0;i<date.size();++i)
      |             ~^~~~~~~~~~~~
molecules.cpp:33:13: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
   33 |         if(l<=total && total<=u)
      |            ~^~~~~~~
molecules.cpp:33:29: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
   33 |         if(l<=total && total<=u)
      |                        ~~~~~^~~
molecules.cpp:35:17: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
   35 |         if(total>u)
      |            ~~~~~^~
molecules.cpp:41:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<str>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |     for(care=0;i<date.size();++i,++care)
      |                ~^~~~~~~~~~~~
molecules.cpp:46:13: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
   46 |         if(l<=total && total<=u)
      |            ~^~~~~~~
molecules.cpp:46:29: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
   46 |         if(l<=total && total<=u)
      |                        ~~~~~^~~

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