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Submission #1054870

# Submission time Handle Problem Language Result Execution time Memory
1054870 2024-08-12T12:48:30 Z Unforgettablepl The Big Prize (IOI17_prize) C++17
90 / 100
 51 ms 5544 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;

int find_best(int n){
    vector<vector<int>> memo(n);
    auto askm = [&](int x) {
        if(!memo[x].empty())return memo[x];
        return memo[x]=ask(x);
    };
    int worst_case = 0;
    for(int i=0;i<480;i++) {
        auto curr = askm(i);
        int c = curr[0]+curr[1];
        if(c==0)return i;
        worst_case = max(worst_case,c);
    }
    for(int i=480;i<n;i++) {
        auto base = askm(i);
        if(base[0]+base[1]==worst_case)
            for(int jump=131072;jump;jump/=2) {
                if(i+jump>=n)continue;
                auto temp = askm(i+jump);
                if(temp==base)i+=jump;
            }
        int curr = base[0]+base[1];
        if(curr==0)return i;
    }
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:6:31: warning: control reaches end of non-void function [-Wreturn-type]
    6 |     vector<vector<int>> memo(n);
      |                               ^

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 4 ms 5152 KB Output is correct
3 Correct 3 ms 4952 KB Output is correct
4 Correct 4 ms 4952 KB Output is correct
5 Correct 3 ms 4952 KB Output is correct
6 Correct 1 ms 5036 KB Output is correct
7 Correct 4 ms 5144 KB Output is correct
8 Correct 4 ms 5156 KB Output is correct
9 Correct 5 ms 5148 KB Output is correct
10 Correct 4 ms 4952 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4952 KB Output is correct
2 Correct 3 ms 4952 KB Output is correct
3 Correct 3 ms 4952 KB Output is correct
4 Correct 3 ms 4952 KB Output is correct
5 Correct 3 ms 4952 KB Output is correct
6 Correct 1 ms 4952 KB Output is correct
7 Correct 3 ms 4952 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 3 ms 4952 KB Output is correct
10 Correct 3 ms 4952 KB Output is correct
11 Correct 3 ms 4952 KB Output is correct
12 Correct 4 ms 4952 KB Output is correct
13 Correct 5 ms 4952 KB Output is correct
14 Correct 4 ms 856 KB Output is correct
15 Correct 10 ms 4952 KB Output is correct
16 Partially correct 24 ms 5492 KB Partially correct - number of queries: 7350
17 Correct 4 ms 4952 KB Output is correct
18 Partially correct 36 ms 5464 KB Partially correct - number of queries: 8512
19 Correct 3 ms 5152 KB Output is correct
20 Correct 14 ms 2864 KB Output is correct
21 Correct 18 ms 5464 KB Output is correct
22 Correct 5 ms 5152 KB Output is correct
23 Correct 4 ms 4952 KB Output is correct
24 Correct 4 ms 4952 KB Output is correct
25 Correct 19 ms 5484 KB Output is correct
26 Correct 24 ms 5252 KB Output is correct
27 Correct 4 ms 5296 KB Output is correct
28 Partially correct 43 ms 5456 KB Partially correct - number of queries: 8060
29 Partially correct 32 ms 5268 KB Partially correct - number of queries: 6234
30 Partially correct 51 ms 5208 KB Partially correct - number of queries: 8318
31 Correct 3 ms 4952 KB Output is correct
32 Correct 5 ms 4952 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 12 ms 5288 KB Output is correct
35 Correct 5 ms 5164 KB Output is correct
36 Correct 10 ms 5208 KB Output is correct
37 Correct 4 ms 4952 KB Output is correct
38 Correct 3 ms 4952 KB Output is correct
39 Correct 16 ms 5184 KB Output is correct
40 Partially correct 37 ms 5208 KB Partially correct - number of queries: 7221
41 Partially correct 26 ms 5200 KB Partially correct - number of queries: 5465
42 Partially correct 23 ms 5544 KB Partially correct - number of queries: 5465
43 Correct 22 ms 5208 KB Output is correct
44 Correct 11 ms 5208 KB Output is correct
45 Correct 13 ms 5208 KB Output is correct
46 Correct 3 ms 4952 KB Output is correct
47 Correct 17 ms 5240 KB Output is correct
48 Partially correct 26 ms 5208 KB Partially correct - number of queries: 6445
49 Correct 6 ms 4952 KB Output is correct
50 Partially correct 34 ms 5432 KB Partially correct - number of queries: 8529
51 Correct 16 ms 5208 KB Output is correct
52 Correct 5 ms 5208 KB Output is correct
53 Correct 3 ms 4952 KB Output is correct
54 Correct 16 ms 5208 KB Output is correct
55 Correct 3 ms 4952 KB Output is correct
56 Partially correct 42 ms 5516 KB Partially correct - number of queries: 8527
57 Partially correct 33 ms 5476 KB Partially correct - number of queries: 6349
58 Partially correct 23 ms 5192 KB Partially correct - number of queries: 6476
59 Partially correct 19 ms 5208 KB Partially correct - number of queries: 5465
60 Partially correct 23 ms 5396 KB Partially correct - number of queries: 5058
61 Correct 4 ms 4952 KB Output is correct
62 Correct 4 ms 5208 KB Output is correct
63 Correct 4 ms 4952 KB Output is correct
64 Correct 4 ms 4952 KB Output is correct
65 Correct 2 ms 4952 KB Output is correct
66 Correct 5 ms 4952 KB Output is correct
67 Correct 3 ms 4952 KB Output is correct
68 Correct 2 ms 4952 KB Output is correct
69 Correct 5 ms 4952 KB Output is correct
70 Correct 4 ms 4952 KB Output is correct
71 Partially correct 21 ms 5492 KB Partially correct - number of queries: 5036
72 Correct 5 ms 4952 KB Output is correct
73 Correct 26 ms 5208 KB Output is correct
74 Partially correct 18 ms 5212 KB Partially correct - number of queries: 5004
75 Correct 4 ms 4952 KB Output is correct
76 Correct 17 ms 5428 KB Output is correct
77 Partially correct 35 ms 5208 KB Partially correct - number of queries: 8337
78 Correct 6 ms 5172 KB Output is correct
79 Correct 13 ms 5452 KB Output is correct
80 Partially correct 36 ms 5208 KB Partially correct - number of queries: 8372
81 Partially correct 40 ms 5256 KB Partially correct - number of queries: 8276
82 Partially correct 34 ms 5432 KB Partially correct - number of queries: 8234
83 Correct 3 ms 4952 KB Output is correct
84 Partially correct 39 ms 5184 KB Partially correct - number of queries: 6778
85 Partially correct 36 ms 5208 KB Partially correct - number of queries: 8227
86 Correct 3 ms 4952 KB Output is correct
87 Correct 2 ms 4952 KB Output is correct
88 Correct 3 ms 4952 KB Output is correct
89 Correct 2 ms 4952 KB Output is correct
90 Correct 3 ms 4952 KB Output is correct
91 Correct 3 ms 4952 KB Output is correct
92 Correct 3 ms 4952 KB Output is correct
93 Correct 5 ms 5404 KB Output is correct
94 Correct 5 ms 4952 KB Output is correct
95 Correct 7 ms 4952 KB Output is correct
96 Correct 4 ms 4952 KB Output is correct
97 Correct 3 ms 5204 KB Output is correct