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Submission #778518

# Submission time Handle Problem Language Result Execution time Memory
778518 2023-07-10T11:39:01 Z benjaminkleyn The Big Prize (IOI17_prize) C++17
90 / 100
 84 ms 5240 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> mem[200000];
vector<int> Ask(int i)
{
    if (mem[i].size()) return mem[i];
    return mem[i] = ask(i);
}

int find_best(int n) 
{
    int i = 0;
    vector<int> cur = Ask(i);
    for (int j = 0; j < n && j < 500; j++)
    {
        vector<int> res = Ask(j);
        if (res[0] + res[1] == 0)
            return j;
        if (res[0] + res[1] > cur[0] + cur[1])
            i = j, cur = res;
    }

    while (i < n)
    {
        for (int j = 18; j >= 0; j--)
            if (i + (1 << j) < n)
            {
                vector<int> res = Ask(i + (1 << j));
                if (res[0] == cur[0] && res[1] == cur[1])
                    i += (1 << j);
            }
        while (i < n)
        {
            vector<int> res = Ask(++i);
            if (res[0] + res[1] == 0) return i;
            if (cur[0] + cur[1] == res[0] + res[1])
            {
                cur = res;
                break;
            }
        }
    }
    return n - 1;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4988 KB Output is correct
2 Correct 6 ms 4944 KB Output is correct
3 Correct 5 ms 5004 KB Output is correct
4 Correct 5 ms 4984 KB Output is correct
5 Correct 9 ms 4996 KB Output is correct
6 Correct 2 ms 4988 KB Output is correct
7 Correct 6 ms 4992 KB Output is correct
8 Correct 9 ms 4992 KB Output is correct
9 Correct 5 ms 5004 KB Output is correct
10 Correct 7 ms 5012 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4944 KB Output is correct
2 Correct 6 ms 4944 KB Output is correct
3 Correct 9 ms 4984 KB Output is correct
4 Correct 6 ms 4992 KB Output is correct
5 Correct 6 ms 4984 KB Output is correct
6 Correct 3 ms 4944 KB Output is correct
7 Correct 8 ms 5008 KB Output is correct
8 Correct 8 ms 4944 KB Output is correct
9 Correct 6 ms 4944 KB Output is correct
10 Correct 9 ms 5000 KB Output is correct
11 Correct 7 ms 4984 KB Output is correct
12 Correct 10 ms 4988 KB Output is correct
13 Correct 6 ms 5004 KB Output is correct
14 Correct 10 ms 5020 KB Output is correct
15 Correct 17 ms 5132 KB Output is correct
16 Partially correct 50 ms 5140 KB Partially correct - number of queries: 7378
17 Correct 7 ms 4992 KB Output is correct
18 Partially correct 76 ms 5160 KB Partially correct - number of queries: 8540
19 Correct 5 ms 4984 KB Output is correct
20 Correct 25 ms 5056 KB Output is correct
21 Correct 34 ms 5068 KB Output is correct
22 Correct 11 ms 5000 KB Output is correct
23 Correct 4 ms 4980 KB Output is correct
24 Correct 6 ms 4984 KB Output is correct
25 Partially correct 19 ms 5132 KB Partially correct - number of queries: 5012
26 Correct 39 ms 5016 KB Output is correct
27 Correct 5 ms 5008 KB Output is correct
28 Partially correct 61 ms 5172 KB Partially correct - number of queries: 8085
29 Partially correct 46 ms 5160 KB Partially correct - number of queries: 6261
30 Partially correct 40 ms 5232 KB Partially correct - number of queries: 8346
31 Correct 6 ms 4992 KB Output is correct
32 Correct 9 ms 4992 KB Output is correct
33 Correct 3 ms 4944 KB Output is correct
34 Correct 31 ms 4976 KB Output is correct
35 Correct 6 ms 4944 KB Output is correct
36 Correct 23 ms 5032 KB Output is correct
37 Correct 9 ms 4992 KB Output is correct
38 Correct 5 ms 5004 KB Output is correct
39 Correct 27 ms 5064 KB Output is correct
40 Partially correct 69 ms 5156 KB Partially correct - number of queries: 7232
41 Partially correct 56 ms 5040 KB Partially correct - number of queries: 5494
42 Partially correct 41 ms 5132 KB Partially correct - number of queries: 5494
43 Partially correct 22 ms 5132 KB Partially correct - number of queries: 5003
44 Correct 35 ms 5044 KB Output is correct
45 Correct 34 ms 4984 KB Output is correct
46 Correct 6 ms 4944 KB Output is correct
47 Correct 34 ms 5108 KB Output is correct
48 Partially correct 39 ms 5124 KB Partially correct - number of queries: 6473
49 Correct 8 ms 5016 KB Output is correct
50 Partially correct 44 ms 5208 KB Partially correct - number of queries: 8557
51 Correct 20 ms 5060 KB Output is correct
52 Correct 6 ms 5012 KB Output is correct
53 Correct 5 ms 5016 KB Output is correct
54 Correct 16 ms 5096 KB Output is correct
55 Correct 6 ms 4984 KB Output is correct
56 Partially correct 54 ms 5240 KB Partially correct - number of queries: 8555
57 Partially correct 25 ms 5180 KB Partially correct - number of queries: 6377
58 Partially correct 38 ms 5172 KB Partially correct - number of queries: 6504
59 Partially correct 45 ms 5048 KB Partially correct - number of queries: 5494
60 Partially correct 44 ms 5116 KB Partially correct - number of queries: 5087
61 Correct 5 ms 5016 KB Output is correct
62 Correct 4 ms 4996 KB Output is correct
63 Correct 8 ms 4988 KB Output is correct
64 Correct 6 ms 5016 KB Output is correct
65 Correct 6 ms 4976 KB Output is correct
66 Correct 11 ms 5000 KB Output is correct
67 Correct 7 ms 4984 KB Output is correct
68 Correct 4 ms 5008 KB Output is correct
69 Correct 12 ms 5032 KB Output is correct
70 Correct 8 ms 4988 KB Output is correct
71 Partially correct 44 ms 5096 KB Partially correct - number of queries: 5056
72 Correct 8 ms 4944 KB Output is correct
73 Correct 46 ms 5076 KB Output is correct
74 Partially correct 33 ms 5124 KB Partially correct - number of queries: 5024
75 Correct 8 ms 4944 KB Output is correct
76 Correct 34 ms 5076 KB Output is correct
77 Partially correct 46 ms 5156 KB Partially correct - number of queries: 8326
78 Correct 11 ms 4944 KB Output is correct
79 Correct 36 ms 5064 KB Output is correct
80 Partially correct 73 ms 5180 KB Partially correct - number of queries: 8360
81 Partially correct 67 ms 5224 KB Partially correct - number of queries: 8338
82 Partially correct 84 ms 5168 KB Partially correct - number of queries: 8288
83 Correct 6 ms 5008 KB Output is correct
84 Partially correct 44 ms 5076 KB Partially correct - number of queries: 6834
85 Partially correct 58 ms 5200 KB Partially correct - number of queries: 8322
86 Correct 6 ms 4992 KB Output is correct
87 Correct 7 ms 5008 KB Output is correct
88 Correct 7 ms 4944 KB Output is correct
89 Correct 5 ms 5080 KB Output is correct
90 Correct 8 ms 4944 KB Output is correct
91 Correct 6 ms 4992 KB Output is correct
92 Correct 4 ms 5004 KB Output is correct
93 Correct 10 ms 5012 KB Output is correct
94 Correct 11 ms 5016 KB Output is correct
95 Correct 11 ms 5000 KB Output is correct
96 Correct 6 ms 4944 KB Output is correct
97 Correct 5 ms 5012 KB Output is correct