Submission #1128370

#	Time	Username	Problem	Language	Result	Execution time	Memory
1128370		lucaskojima	Rice Hub (IOI11_ricehub)	C++17	Compilation error	0 ms	0 KiB

ricehub

#include <bits/stdc++.h>
#include "ricehub.h"
#define int long long

using namespace std;

int besthub(int n, int x, int vv[], int c) {
	vector<int> v(n + 1);
	for (int i = 1; i <= n; i++)
		v[i] = vv[i - 1];

	vector<int> pref(n + 1);
	for (int i = 1; i <= n; i++)
		pref[i] = pref[i - 1] + v[i];

	auto ok = [&](int k) -> bool {
		for (int l = 1, r = k; r <= n; l++, r++) {
			int m = (l + r) / 2;
			int sumL = pref[m - 1] - pref[l - 1];
			int sumR = pref[r] - pref[m];

			int cost = abs(v[m] * (m - l) - sumL) + abs(sumR - v[m] * (r - m));
			if (cost <= c)
				return true;
		}
		return false;
	};

	int l = 1;     // l is good
	int r = n + 1; // r is bad
	while (r > l + 1) {
		int m = (l + r) / 2;
		ok(m) ? l = m : r = m;
	}
	return l;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccGExmeU.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