Submission #1249361

#TimeUsernameProblemLanguageResultExecution timeMemory
1249361_HDH쌀 창고 (IOI11_ricehub)C++20
68 / 100
1095 ms1348 KiB
#include "ricehub.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int besthub(int R, int L, int X[], long long B)
{
    vector<ll> psum(R);
    psum[0] = X[0];
    for (int i = 1; i < R; i++){
        psum[i] = psum[i - 1] + X[i];
    }

    int ans = 0;
    for (int i = 0; i < R; i++){
        for (int j = i; j < R; j++){
            int mid = (i + j) / 2;
            ll sum_left = psum[mid] - (i - 1 >= 0? psum[i - 1]: 0);
            ll sum_right = psum[j] - psum[mid];
            ll sum = sum_right - (1LL * X[mid] * (j - mid)) + (1LL * X[mid] * (mid - i + 1)) - sum_left;

            if (sum <= B)
                ans = max(ans, j - i + 1);
        }
    }
  return ans;
}
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