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Submission #1003181

# Submission time Handle Problem Language Result Execution time Memory
1003181 2024-06-20T07:21:13 Z vjudge1 Rice Hub (IOI11_ricehub) C++17
17 / 100
 55 ms 3420 KB 
#include<bits/stdc++.h>
#include "ricehub.h"
#define ll long long
#define ld long double
#define vl vector<ll>
#define vi vector<int>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define f first
#define s second
#define pb push_back
#define p_b pop_back
using namespace std;
int besthub(int R, int L, int X[], long long B)
{
    ll n = R, i;
    ll h[n+5], pref[n+5];
    pref[0] = 0;
    for(i = 1; i <= n; i++)
        h[i] = X[i-1];
    for(i = 1; i <= n; i++)
        pref[i] = pref[i-1] + h[i];
    ll res = 0;
    for(i = 1; i <= n; i++)
    {
        ll l = i, r = n, ans = i;
        //cout << "i: " << i << "\n";
        while(l <= r)
        {
            ll mid = (l + r) / 2;
            ll rh = (h[mid] + h[i]) / 2;
            ll tl = i, tr = mid, ok = i;
            //cout << "mid: " << mid << " rh: " << rh << " tmid: ";
            while(tl <= tr)
            {
                ll tmid = (tl + tr) / 2;
                if(h[tmid] > rh)
                    tr = tmid - 1;
                else{
                    ok = max(ok, tmid);
                    tl = tmid + 1;
                }
            }
            ll tmid = ok;
            //cout << tmid << " sum1: ";
            ll sum1 = rh * (tmid - i + 1) - (pref[tmid] - pref[i-1]);
            ll sum2 = pref[mid] - pref[tmid] - (mid - tmid) * rh;
            ll sum = sum1 + sum2;
            //cout << sum1 << " sum2: " << sum2 << " sum: " << sum << "\n";
            if(sum > B)
                r = mid - 1;
            else
            {
                ans = max(ans, mid);
                l = mid + 1;
            }
        }
        res = max(res, ans - i + 1);
    }
    return res;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 448 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Incorrect 0 ms 348 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #3
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Incorrect 0 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 960 KB Output is correct
2 Correct 3 ms 964 KB Output is correct
3 Correct 27 ms 3360 KB Output is correct
4 Correct 28 ms 3420 KB Output is correct
5 Correct 22 ms 1624 KB Output is correct
6 Correct 20 ms 1624 KB Output is correct
7 Correct 47 ms 3164 KB Output is correct
8 Correct 53 ms 3152 KB Output is correct
9 Correct 26 ms 1628 KB Output is correct
10 Correct 26 ms 1628 KB Output is correct
11 Correct 52 ms 3416 KB Output is correct
12 Correct 55 ms 3420 KB Output is correct
13 Correct 24 ms 1736 KB Output is correct
14 Correct 24 ms 1800 KB Output is correct
15 Correct 42 ms 2648 KB Output is correct
16 Incorrect 41 ms 2652 KB Output isn't correct
17 Halted 0 ms 0 KB -