Submission #800677

#	Time	Username	Problem	Language	Result	Execution time	Memory
800677		vjudge1	Rice Hub (IOI11_ricehub)	C++17	68 / 100	10 ms	2112 KiB

ricehub

#include "ricehub.h"

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

int P[100101];

int besthub(int R, int L, int X[], long long B) {
        int l = 1, r = R, res = -1;
        for (int i = 0; i < R; i++) P[i + 1] = P[i] + X[i];
        while (l <= r) {
                int mid = l + r >> 1;
                bool ok = 0;
                for (int i = mid - 1, j = 0; i < R; i++) {
                        while (j - (i - mid + 1) < i - j) j++;
                        int median = X[j];
                        long long LL = P[j] - P[i - mid + 1];
                        long long RR = P[i + 1] - P[j];
                        LL = 1ll * median * (j - i + mid - 1) - LL;
                        RR = RR - 1ll * median * (i + 1 - j);
                        if (LL + RR <= B) ok = 1;
                }
                if (ok) {
                        res = mid;
                        l = mid + 1;
                } else {
                        r = mid - 1;
                }
        }
        return res;
}

Compilation message (stderr)

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:12:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   12 |                 int mid = l + r >> 1;
      |                           ~~^~~

• Subtask 1: 17 / 17
• Subtask 2: 25 / 25
• Subtask 3: 26 / 26
• Subtask 4: 0 / 32