#include <bits/stdc++.h>
#define FAST {ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);}
#define FILES {freopen("input.txt", "r", stdin);freopen("output.txt", "w", stdout);}
#define ll long long
#define ull unsigned long long
#define pqueue priority_queue
#define pb push_back
#define fi first
#define se second
#define ld long double
#define pii pair<int,int>
#define pll pair<long long,long long>
#define all(a) (a).begin(), (a).end()
#define mp make_pair
using namespace std;
// order_of_key -> # less than k
// find_by_order -> k-th element
// pq max element
const double eps = 0.00000001;
const int NMAX = 100010;
const ll inf = LLONG_MAX/3;
const ll modi = 998244353;
ll s1[NMAX], s2[NMAX], X[NMAX];
#define SUM(l,r) (s1[r]-(l?s1[l-1]:0))
ll calc(int l, int r) {
int mid = (l+r)/2;
ll res = (mid-l+1)*(X[mid]) - SUM(l,mid);
res += SUM(mid,r) - (r-mid+1)*(X[mid]);
return res;
}
ll besthub(ll n, ll L, ll x[], ll b) {
for (int i = 0 ; i < n ; i++) {
s1[i] = x[i];
X[i] = x[i];
if ( i )
s1[i] += s1[i-1];
}
ll res = 1;
ll l = 0;
ll r = 1;
while(r<n) {
//cout << l << ' ' << r << endl;
ll temp = calc(l,r);
if (temp <= b) {
r++;
res = max(res, r-l);
}
else {
l++;
}
}
return res;
}
Compilation message
/usr/bin/ld: /tmp/ccSgFjgs.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
