Submission #700960

#	Time	Username	Problem	Language	Result	Execution time	Memory
700960		abczz	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include <iostream>
#include <algorithm>
#define ll long long

using namespace std;

ll n, l, r, ps[200000];
pair <ll, ll> a[200000];
int main() {
  cin >> n >> l >> r;
  for (int i=0; i<n; ++i) {
    cin >> a[i].first;
    a[i].second = i;
  }
  sort(a, a+n, [](auto a, auto b) {
    return a.first < b.first;
  });
  for (int i=0; i<n; ++i) {
    if (i == 0) ps[i] = a[i].first;
    else ps[i] = ps[i-1] + a[i].first;
  }
  for (int i=0; i<n; ++i) {
    if (ps[i] >= l && ps[i] <= r) {
      cout << i+1 << endl;
      for (int j=0; j<=i; ++j) {
        cout << a[j].second << " ";
      }
      return 0;
    }
  }
  int i=0, j=0;
  while (max(i, j) < n) {
    if (ps[i]-ps[j] >= l && ps[i]-ps[j] <= r) {
      cout << i-j << endl;
      for (int k=j+1; k<=i; ++k) {
        cout << a[k].second << " ";
      }
      return 0;
    }
    else if (ps[i]-ps[j] > r) ++j;
    else ++i;
  }
  cout << 0 << endl;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cciJ3Vbu.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccxwb6Zs.o:molecules.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cciJ3Vbu.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