Submission #895822

#	Time	Username	Problem	Language	Result	Execution time	Memory
895822		vjudge1	Rice Hub (IOI11_ricehub)	C++17	Compilation error	0 ms	0 KiB

ricehub

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

ll r, l, x, b, fields[100000];
vector<ll> pref;

ll check(ll R, ll L, ll fields[100000], ll B) {
  ll lo = L, hi = R;
  while (lo < hi){
    ll mid = (lo + hi + 1)/2;
    ll k = (L + mid)/2;
    ll cost = fields[k - 1]*(k - L + 1) - (pref[k] - pref[L - 1]) +(pref[mid] - pref[k]) - (mid - k)*fields[k-1];

    if (cost > B) {
      hi = mid - 1;
    } else {
      lo = mid;
    }
  }

  return lo - L + 1;
}

ll besthub(ll R, ll L, ll fields[100000], ll B) {
  pref.resize(R + 1);
  for(int i = 0; i < R; i++){
    pref[i+1] += pref[i];
    pref[i+1] += fields[i];
  }
  
  ll ans = INT_MIN;
  for (int i = 1; i <= R; i++) {
    ans = max(ans, check(R, i, fields, B));
  }
  return ans;
}

int main() {
  ios::sync_with_stdio(0);
  cin.tie(nullptr);

  cin >> r >> l >> b;
  for (int i = 0; i < r; i++) {
    cin >> fields[i];
  }
  cout << besthub(r, l, fields, b) << "\n";
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccAHgEEo.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc4gDj8n.o:ricehub.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccAHgEEo.o: in function `main':
grader.cpp:(.text.startup+0xae): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status