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Submission #654454

# Submission time Handle Problem Language Result Execution time Memory
654454 2022-10-31T10:55:56 Z Hanksburger The Big Prize (IOI17_prize) C++17
100 / 100
 73 ms 10688 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
set<int> s[200005];
int a[200005];
int f(int l, int r)
{
    if (l>r)
        return -1;
    int m=(l+r)/2, k;
    vector<int> v=ask(m);
    if (!(k=(a[m]=v[0])+v[1]))
        return m;
    auto it=s[k].insert(m).first;
    if (it==s[k].begin() || a[*prev(it)]!=a[m])
    {
        int x=f(l, m-1);
        if (x>=0)
            return x;
    }
    if (it==--s[k].end() || a[*next(it)]!=a[m])
    {
        int x=f(m+1, r);
        if (x>=0)
            return x;
    }
    return -1;
}
int find_best(int N)
{
    return f(0, N-1);
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9688 KB Output is correct
2 Correct 5 ms 9680 KB Output is correct
3 Correct 6 ms 9680 KB Output is correct
4 Correct 6 ms 9696 KB Output is correct
5 Correct 7 ms 9696 KB Output is correct
6 Correct 6 ms 9692 KB Output is correct
7 Correct 6 ms 9680 KB Output is correct
8 Correct 7 ms 9684 KB Output is correct
9 Correct 5 ms 9680 KB Output is correct
10 Correct 6 ms 9668 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9688 KB Output is correct
2 Correct 6 ms 9704 KB Output is correct
3 Correct 6 ms 9680 KB Output is correct
4 Correct 6 ms 9680 KB Output is correct
5 Correct 9 ms 9684 KB Output is correct
6 Correct 6 ms 9680 KB Output is correct
7 Correct 6 ms 9688 KB Output is correct
8 Correct 6 ms 9680 KB Output is correct
9 Correct 6 ms 9692 KB Output is correct
10 Correct 7 ms 9728 KB Output is correct
11 Correct 7 ms 9872 KB Output is correct
12 Correct 6 ms 9680 KB Output is correct
13 Correct 8 ms 10096 KB Output is correct
14 Correct 8 ms 9680 KB Output is correct
15 Correct 8 ms 9936 KB Output is correct
16 Correct 47 ms 10388 KB Output is correct
17 Correct 6 ms 9648 KB Output is correct
18 Correct 49 ms 10608 KB Output is correct
19 Correct 6 ms 9696 KB Output is correct
20 Correct 10 ms 10000 KB Output is correct
21 Correct 19 ms 9924 KB Output is correct
22 Correct 8 ms 9744 KB Output is correct
23 Correct 7 ms 9688 KB Output is correct
24 Correct 7 ms 9684 KB Output is correct
25 Correct 23 ms 10196 KB Output is correct
26 Correct 22 ms 10192 KB Output is correct
27 Correct 7 ms 9680 KB Output is correct
28 Correct 61 ms 10544 KB Output is correct
29 Correct 33 ms 10440 KB Output is correct
30 Correct 37 ms 10688 KB Output is correct
31 Correct 6 ms 9688 KB Output is correct
32 Correct 10 ms 9936 KB Output is correct
33 Correct 6 ms 9616 KB Output is correct
34 Correct 22 ms 9904 KB Output is correct
35 Correct 6 ms 9808 KB Output is correct
36 Correct 13 ms 9800 KB Output is correct
37 Correct 7 ms 9680 KB Output is correct
38 Correct 6 ms 9768 KB Output is correct
39 Correct 25 ms 10076 KB Output is correct
40 Correct 33 ms 10612 KB Output is correct
41 Correct 29 ms 10240 KB Output is correct
42 Correct 27 ms 10184 KB Output is correct
43 Correct 32 ms 10280 KB Output is correct
44 Correct 19 ms 10068 KB Output is correct
45 Correct 16 ms 9960 KB Output is correct
46 Correct 7 ms 9680 KB Output is correct
47 Correct 29 ms 10060 KB Output is correct
48 Correct 27 ms 10324 KB Output is correct
49 Correct 8 ms 9680 KB Output is correct
50 Correct 47 ms 10576 KB Output is correct
51 Correct 21 ms 10064 KB Output is correct
52 Correct 6 ms 9680 KB Output is correct
53 Correct 6 ms 9812 KB Output is correct
54 Correct 28 ms 10080 KB Output is correct
55 Correct 6 ms 9680 KB Output is correct
56 Correct 54 ms 10672 KB Output is correct
57 Correct 38 ms 10376 KB Output is correct
58 Correct 21 ms 10376 KB Output is correct
59 Correct 31 ms 10200 KB Output is correct
60 Correct 36 ms 10196 KB Output is correct
61 Correct 6 ms 9816 KB Output is correct
62 Correct 8 ms 9680 KB Output is correct
63 Correct 9 ms 9820 KB Output is correct
64 Correct 9 ms 9684 KB Output is correct
65 Correct 9 ms 9684 KB Output is correct
66 Correct 8 ms 9680 KB Output is correct
67 Correct 9 ms 9648 KB Output is correct
68 Correct 9 ms 9680 KB Output is correct
69 Correct 10 ms 9680 KB Output is correct
70 Correct 10 ms 9680 KB Output is correct
71 Correct 54 ms 10560 KB Output is correct
72 Correct 14 ms 10048 KB Output is correct
73 Correct 40 ms 10632 KB Output is correct
74 Correct 66 ms 10644 KB Output is correct
75 Correct 9 ms 9808 KB Output is correct
76 Correct 43 ms 10644 KB Output is correct
77 Correct 73 ms 10584 KB Output is correct
78 Correct 12 ms 10064 KB Output is correct
79 Correct 29 ms 10556 KB Output is correct
80 Correct 51 ms 10628 KB Output is correct
81 Correct 40 ms 10664 KB Output is correct
82 Correct 46 ms 10568 KB Output is correct
83 Correct 8 ms 9808 KB Output is correct
84 Correct 60 ms 10568 KB Output is correct
85 Correct 42 ms 10564 KB Output is correct
86 Correct 12 ms 10004 KB Output is correct
87 Correct 11 ms 9944 KB Output is correct
88 Correct 12 ms 10040 KB Output is correct
89 Correct 9 ms 9956 KB Output is correct
90 Correct 7 ms 9816 KB Output is correct
91 Correct 10 ms 9936 KB Output is correct
92 Correct 8 ms 9692 KB Output is correct
93 Correct 8 ms 9956 KB Output is correct
94 Correct 8 ms 9936 KB Output is correct
95 Correct 9 ms 9972 KB Output is correct
96 Correct 9 ms 9956 KB Output is correct
97 Correct 7 ms 9704 KB Output is correct