Submission #1263306

#	Time	Username	Problem	Language	Result	Execution time	Memory
1263306		DeltaStruct	Rice Hub (IOI11_ricehub)	C++20	Compilation error	0 ms	0 KiB

ricehub

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

signed besthub(int n,int m,int a[],int q){
  vector<int> A(a,a+n); int ret = 0;
  vector<int> B(1); for (int a:A) B.emplace_back(B.back()+a);
  for (int i(0);i < n;++i){
    auto f = [&](int x) -> int {
      return (B[x+1]-B[(x+i)/2]-A[(x+i)/2]*(x+1-(x+i)/2)+A[(x+i)/2]*((x+i)/2-i)-B[(x+i)/2]+B[i])<=q;
    };
    int l = i,r = n,mid;
    while(r-l>1){
      if (f(mid = (l+r)/2)) l = mid;
      else r = mid;
    }
    ret = max(ret,l-i+1);
  }
  return ret;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccXt8A0Z.o: in function `main':
grader.cpp:(.text.startup+0xaa): undefined reference to `besthub(int, int, int*, long long)'
collect2: error: ld returned 1 exit status