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Submission #775067

# Submission time Handle Problem Language Result Execution time Memory
775067 2023-07-06T07:14:56 Z t6twotwo The Big Prize (IOI17_prize) C++17
90 / 100
 88 ms 300 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
int find_best(int N) {
    int mx = 0;
    for (int i = 0; i < 500; i++) {
        vector<int> t = ask(i);
        if (t[0] + t[1] == 0) {
            return i;
        }
        mx = max(mx, t[0] + t[1]);
    }
    int x = 500;
    while (1) {
        vector<int> t = ask(x);
        if (t[0] + t[1] == 0) {
            return x;
        }
        if (t[0] + t[1] != mx) {
            x++;
            continue;
        }
        int lo = x, hi = N - 1;
        while (lo < hi) {
            int mi = (lo + hi + 1) / 2;
            vector<int> v = ask(mi);
            if (v == t) {
                lo = mi;
            } else {
                hi = mi - 1;
            }
        }
        x = lo + 1;
    }
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 284 KB Output is correct
2 Correct 4 ms 208 KB Output is correct
3 Correct 6 ms 208 KB Output is correct
4 Correct 4 ms 292 KB Output is correct
5 Correct 2 ms 276 KB Output is correct
6 Correct 0 ms 292 KB Output is correct
7 Correct 5 ms 208 KB Output is correct
8 Correct 2 ms 288 KB Output is correct
9 Correct 2 ms 288 KB Output is correct
10 Correct 4 ms 208 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 208 KB Output is correct
2 Correct 5 ms 288 KB Output is correct
3 Correct 5 ms 208 KB Output is correct
4 Correct 4 ms 208 KB Output is correct
5 Correct 3 ms 208 KB Output is correct
6 Correct 1 ms 288 KB Output is correct
7 Correct 2 ms 288 KB Output is correct
8 Correct 2 ms 268 KB Output is correct
9 Correct 3 ms 288 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 7 ms 268 KB Output is correct
12 Correct 5 ms 300 KB Output is correct
13 Correct 10 ms 292 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 9 ms 208 KB Output is correct
16 Partially correct 64 ms 208 KB Partially correct - number of queries: 7814
17 Correct 2 ms 208 KB Output is correct
18 Partially correct 30 ms 288 KB Partially correct - number of queries: 9090
19 Correct 2 ms 288 KB Output is correct
20 Correct 23 ms 292 KB Output is correct
21 Correct 37 ms 208 KB Output is correct
22 Correct 5 ms 292 KB Output is correct
23 Correct 5 ms 208 KB Output is correct
24 Correct 6 ms 208 KB Output is correct
25 Partially correct 47 ms 208 KB Partially correct - number of queries: 5333
26 Partially correct 55 ms 292 KB Partially correct - number of queries: 5269
27 Correct 7 ms 272 KB Output is correct
28 Partially correct 76 ms 208 KB Partially correct - number of queries: 8648
29 Partially correct 73 ms 280 KB Partially correct - number of queries: 6688
30 Partially correct 82 ms 288 KB Partially correct - number of queries: 9032
31 Correct 4 ms 296 KB Output is correct
32 Correct 9 ms 208 KB Output is correct
33 Correct 1 ms 208 KB Output is correct
34 Correct 11 ms 296 KB Output is correct
35 Correct 3 ms 296 KB Output is correct
36 Correct 21 ms 208 KB Output is correct
37 Correct 4 ms 288 KB Output is correct
38 Correct 5 ms 292 KB Output is correct
39 Correct 21 ms 292 KB Output is correct
40 Partially correct 67 ms 208 KB Partially correct - number of queries: 7787
41 Partially correct 39 ms 296 KB Partially correct - number of queries: 5629
42 Partially correct 50 ms 292 KB Partially correct - number of queries: 5629
43 Partially correct 37 ms 276 KB Partially correct - number of queries: 5129
44 Correct 14 ms 284 KB Output is correct
45 Correct 22 ms 292 KB Output is correct
46 Correct 3 ms 208 KB Output is correct
47 Correct 25 ms 208 KB Output is correct
48 Partially correct 46 ms 208 KB Partially correct - number of queries: 6846
49 Correct 10 ms 296 KB Output is correct
50 Partially correct 51 ms 208 KB Partially correct - number of queries: 9087
51 Correct 13 ms 288 KB Output is correct
52 Correct 5 ms 292 KB Output is correct
53 Correct 7 ms 292 KB Output is correct
54 Correct 14 ms 292 KB Output is correct
55 Correct 2 ms 296 KB Output is correct
56 Partially correct 49 ms 288 KB Partially correct - number of queries: 9089
57 Partially correct 46 ms 208 KB Partially correct - number of queries: 6768
58 Partially correct 58 ms 272 KB Partially correct - number of queries: 6874
59 Partially correct 33 ms 208 KB Partially correct - number of queries: 5629
60 Partially correct 29 ms 292 KB Partially correct - number of queries: 5260
61 Correct 5 ms 208 KB Output is correct
62 Correct 4 ms 292 KB Output is correct
63 Correct 6 ms 296 KB Output is correct
64 Correct 3 ms 272 KB Output is correct
65 Correct 3 ms 288 KB Output is correct
66 Correct 6 ms 208 KB Output is correct
67 Correct 5 ms 288 KB Output is correct
68 Correct 3 ms 208 KB Output is correct
69 Correct 7 ms 208 KB Output is correct
70 Correct 6 ms 288 KB Output is correct
71 Partially correct 77 ms 208 KB Partially correct - number of queries: 9228
72 Correct 4 ms 292 KB Output is correct
73 Partially correct 75 ms 212 KB Partially correct - number of queries: 9112
74 Partially correct 57 ms 288 KB Partially correct - number of queries: 9164
75 Correct 5 ms 208 KB Output is correct
76 Partially correct 73 ms 296 KB Partially correct - number of queries: 7960
77 Partially correct 60 ms 208 KB Partially correct - number of queries: 9112
78 Correct 13 ms 208 KB Output is correct
79 Correct 29 ms 208 KB Output is correct
80 Partially correct 73 ms 208 KB Partially correct - number of queries: 9138
81 Partially correct 55 ms 208 KB Partially correct - number of queries: 9101
82 Partially correct 88 ms 208 KB Partially correct - number of queries: 9032
83 Correct 6 ms 208 KB Output is correct
84 Partially correct 61 ms 208 KB Partially correct - number of queries: 7495
85 Partially correct 58 ms 208 KB Partially correct - number of queries: 9103
86 Correct 3 ms 288 KB Output is correct
87 Correct 3 ms 208 KB Output is correct
88 Correct 4 ms 208 KB Output is correct
89 Correct 5 ms 208 KB Output is correct
90 Correct 5 ms 208 KB Output is correct
91 Correct 7 ms 208 KB Output is correct
92 Correct 7 ms 208 KB Output is correct
93 Correct 11 ms 208 KB Output is correct
94 Correct 7 ms 208 KB Output is correct
95 Correct 12 ms 208 KB Output is correct
96 Correct 9 ms 208 KB Output is correct
97 Correct 3 ms 208 KB Output is correct