제출 #781337

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
781337		devariaota	Detecting Molecules (IOI16_molecules)	C++17	컴파일 에러	0 ms	0 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
#define int long long
using namespace std;
vector<int> find_subset(int l, int u, vector<int> w) {
  int sz=0;
  vector<pair<int, int>> a;
  for(int p : w) a.push_back({p, sz++});
  sort(a.begin(), a.end());
  int sum=0;
  int L=0, R=0;
  while(L<sz) {
    while(R<sz && sum<l) sum+=a[R++].first;
    if(l<=sum && sum<=u) {
      vector<int> ans;
      for(int i=L; i<R; i++) ans.push_back(i);
      return ans;
    }
    sum-=a[L++].first;
    if(l<=sum && sum<=u) {
      vector<int> ans;
      for(int i=L; i<R; i++) ans.push_back(i);
      return ans;
    }
  }
}

컴파일 시 표준 에러 (stderr) 메시지

molecules.cpp: In function 'std::vector<long long int> find_subset(long long int, long long int, std::vector<long long int>)':
molecules.cpp:7:26: warning: control reaches end of non-void function [-Wreturn-type]
    7 |   vector<pair<int, int>> a;
      |                          ^
/usr/bin/ld: /tmp/ccP3DFvX.o: in function `main':
grader.cpp:(.text.startup+0x18d): undefined reference to `find_subset(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status