제출 #558199

#제출 시각아이디문제언어결과실행 시간메모리
558199ngpin04쌀 창고 (IOI11_ricehub)C++14
100 / 100
12 ms2524 KiB
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define TASK ""
#define ALL(x) (x).begin(), (x).end() 
using namespace std;
template <typename T1, typename T2> bool mini(T1 &a, T2 b) {
  if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maxi(T1 &a, T2 b) {
  if (a < b) {a = b; return true;} return false;
}
const int N = 1e5 + 5; 
const int oo = 1e9;
const long long ooo = 1e18;
const int mod = 1e9 + 7; // 998244353;
const long double pi = acos(-1);

#include "ricehub.h"
//#include "grader.cpp"

long long s[N];

long long sum(int l, int r) {
    return s[r] - s[l - 1];
}

int besthub(int n, int L, int a[], long long lim) {
    s[0] = a[0];
    for (int i = 1; i < n; i++) 
        s[i] = s[i - 1] + a[i];

    int ans = 0;
    for (int r = 0, l = 0; r < n; r++) {
        while (true) {
            int mid = (l + r) >> 1;
            long long tot = 0;
            tot += sum(mid, r) - (long long) (r - mid + 1) * a[mid];
            tot += (long long) (mid - l + 1) * a[mid] - sum(l, mid);
            if (tot <= lim)
                break;
            l++; 
        }

        maxi(ans, r - l + 1);
    }
    return ans;   
}
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