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Submission #556298

# Submission time Handle Problem Language Result Execution time Memory
556298 2022-05-02T19:41:18 Z Dan4Life Rice Hub (IOI11_ricehub) C++17
68 / 100
 54 ms 2508 KB 
#include "ricehub.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long

ll pref[100010];

ll sum(int i, int j){ return pref[j+1]-pref[i]; }

int besthub(int n, int m, int a[], ll k)
{
    pref[0] = 0;
    for(int i = 0; i < n; i++)
        pref[i+1] = pref[i]+(ll)a[i];
    int l = 1, r = n;
    while(l<r){
        int mid = (l+r+1)/2; ll mn = (ll)4e18;
        for(int i = 0; i <= n-mid; i++){
            int j = i+mid-1; int med = (i+j)/2; int x = med;
            ll sum1 = (ll)a[med]*(med-i+1)-sum(i,med);
            ll sum2 = sum(med+1,j)-a[med]*(j-med);
            mn = min(mn, sum1+sum2); int cnt = 20;
            while(med-1>=i and cnt--){
                med--;
                sum1 = (ll)a[med]*(med-i+1)-sum(i,med);
                sum2 = sum(med+1,j)-a[med]*(j-med);
                mn = min(mn, sum1+sum2);
            }
            cnt = 20, med = x;
            while(med+1<=j and cnt--){
                med++;
                sum1 = (ll)a[med]*(med-i+1)-sum(i,med);
                sum2 = sum(med+1,j)-a[med]*(j-med);
                mn = min(mn, sum1+sum2);
            }
        }
        if(mn<=k) l=mid;
        else r = mid-1;
    }
    return l;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 308 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 304 KB Output is correct
11 Correct 1 ms 308 KB Output is correct
12 Correct 1 ms 312 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 308 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 312 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 312 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 416 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 8 ms 340 KB Output is correct
22 Correct 6 ms 340 KB Output is correct
23 Correct 1 ms 352 KB Output is correct
24 Correct 2 ms 316 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 5 ms 340 KB Output is correct
28 Correct 4 ms 340 KB Output is correct

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 576 KB Output is correct
2 Correct 24 ms 596 KB Output is correct
3 Correct 21 ms 2496 KB Output is correct
4 Incorrect 54 ms 2508 KB Output isn't correct
5 Halted 0 ms 0 KB -