oj.uz

Submission #771933

# Submission time Handle Problem Language Result Execution time Memory
771933 2023-07-03T12:20:57 Z _martynas The Big Prize (IOI17_prize) C++11
20 / 100
 77 ms 336 KB 
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

const int jump = 256;

int find_best(int n) {
    mt19937 rng(420);
    uniform_int_distribution<int> dist(0, n-1);
    int mx_sum = 0;
    for(int k = 0; k < 300; k++) {
        int i = dist(rng);
        auto v = ask(i);
        if(v[0]+v[1] == 0) return i;
        mx_sum = max(mx_sum, v[0]+v[1]);
    }
    for(int i = 0; i < n; i++) {
        auto v = ask(i);
        int sum = v[0]+v[1];
        if(sum == 0) {
            return i;
        }
        if(sum == mx_sum) {
            vector<int> v_p;
//            if(i+jump < n) {
//                v_p = ask(i+jump);
//                if() {
//
//                }
//            }
            int l = i, r = n-1;
            while(l < r) {
                int m = (l+r+1)/2;
                v_p = ask(m);
                int sum_p = v_p[0]+v_p[1];
                if(sum_p < mx_sum || v_p[0] > v[0]) {
                    r = m-1;
                }
                else {
                    l = m;
                }
            }
            i = l;
        }
    }
	return 0;
}

/*
5
2 2 2 1 2

8
3 3 2 3 3 2 1 3

sample:
8
3 2 3 1 3 3 2 3


*/

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 208 KB Output is correct
2 Correct 3 ms 292 KB Output is correct
3 Correct 2 ms 208 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 2 ms 208 KB Output is correct

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 292 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 2 ms 208 KB Output is correct
4 Correct 3 ms 208 KB Output is correct
5 Correct 2 ms 288 KB Output is correct
6 Correct 1 ms 288 KB Output is correct
7 Correct 3 ms 292 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 3 ms 284 KB Output is correct
10 Correct 3 ms 208 KB Output is correct
11 Correct 4 ms 208 KB Output is correct
12 Correct 3 ms 292 KB Output is correct
13 Correct 5 ms 208 KB Output is correct
14 Correct 6 ms 208 KB Output is correct
15 Correct 12 ms 296 KB Output is correct
16 Partially correct 66 ms 292 KB Partially correct - number of queries: 7633
17 Correct 2 ms 208 KB Output is correct
18 Partially correct 29 ms 292 KB Partially correct - number of queries: 8909
19 Correct 2 ms 288 KB Output is correct
20 Correct 17 ms 288 KB Output is correct
21 Correct 29 ms 288 KB Output is correct
22 Correct 8 ms 292 KB Output is correct
23 Correct 3 ms 296 KB Output is correct
24 Correct 3 ms 208 KB Output is correct
25 Partially correct 38 ms 208 KB Partially correct - number of queries: 5172
26 Partially correct 36 ms 300 KB Partially correct - number of queries: 5090
27 Correct 2 ms 328 KB Output is correct
28 Partially correct 29 ms 292 KB Partially correct - number of queries: 8467
29 Partially correct 54 ms 288 KB Partially correct - number of queries: 6507
30 Partially correct 71 ms 288 KB Partially correct - number of queries: 8852
31 Correct 3 ms 296 KB Output is correct
32 Correct 4 ms 296 KB Output is correct
33 Correct 1 ms 208 KB Output is correct
34 Correct 20 ms 292 KB Output is correct
35 Correct 4 ms 208 KB Output is correct
36 Correct 8 ms 288 KB Output is correct
37 Correct 2 ms 292 KB Output is correct
38 Correct 3 ms 296 KB Output is correct
39 Correct 14 ms 288 KB Output is correct
40 Partially correct 31 ms 292 KB Partially correct - number of queries: 7606
41 Partially correct 46 ms 208 KB Partially correct - number of queries: 5449
42 Partially correct 43 ms 208 KB Partially correct - number of queries: 5449
43 Correct 24 ms 208 KB Output is correct
44 Correct 14 ms 292 KB Output is correct
45 Correct 27 ms 288 KB Output is correct
46 Correct 1 ms 292 KB Output is correct
47 Correct 32 ms 208 KB Output is correct
48 Partially correct 55 ms 288 KB Partially correct - number of queries: 6665
49 Correct 4 ms 292 KB Output is correct
50 Partially correct 77 ms 292 KB Partially correct - number of queries: 8906
51 Correct 1 ms 268 KB Output is correct
52 Correct 2 ms 296 KB Output is correct
53 Correct 3 ms 296 KB Output is correct
54 Correct 33 ms 296 KB Output is correct
55 Correct 1 ms 292 KB Output is correct
56 Partially correct 29 ms 296 KB Partially correct - number of queries: 8908
57 Partially correct 22 ms 292 KB Partially correct - number of queries: 6588
58 Partially correct 51 ms 208 KB Partially correct - number of queries: 6695
59 Partially correct 33 ms 208 KB Partially correct - number of queries: 5449
60 Partially correct 36 ms 288 KB Partially correct - number of queries: 5080
61 Correct 3 ms 208 KB Output is correct
62 Correct 2 ms 208 KB Output is correct
63 Correct 2 ms 288 KB Output is correct
64 Correct 2 ms 292 KB Output is correct
65 Correct 3 ms 280 KB Output is correct
66 Correct 7 ms 208 KB Output is correct
67 Correct 3 ms 292 KB Output is correct
68 Correct 3 ms 336 KB Output is correct
69 Correct 7 ms 208 KB Output is correct
70 Correct 2 ms 208 KB Output is correct
71 Partially correct 31 ms 208 KB Partially correct - number of queries: 9124
72 Correct 9 ms 208 KB Output is correct
73 Partially correct 74 ms 208 KB Partially correct - number of queries: 8993
74 Partially correct 57 ms 236 KB Partially correct - number of queries: 9047
75 Correct 3 ms 208 KB Output is correct
76 Partially correct 57 ms 208 KB Partially correct - number of queries: 7777
77 Partially correct 58 ms 208 KB Partially correct - number of queries: 8983
78 Correct 8 ms 292 KB Output is correct
79 Correct 31 ms 208 KB Output is correct
80 Partially correct 76 ms 208 KB Partially correct - number of queries: 8986
81 Partially correct 75 ms 208 KB Partially correct - number of queries: 8993
82 Partially correct 77 ms 208 KB Partially correct - number of queries: 8910
83 Correct 2 ms 208 KB Output is correct
84 Partially correct 45 ms 208 KB Partially correct - number of queries: 7367
85 Partially correct 51 ms 208 KB Partially correct - number of queries: 8990
86 Partially correct 75 ms 208 KB Partially correct - number of queries: 8842
87 Correct 8 ms 208 KB Output is correct
88 Partially correct 72 ms 208 KB Partially correct - number of queries: 8433
89 Partially correct 29 ms 288 KB Partially correct - number of queries: 8768
90 Correct 4 ms 208 KB Output is correct
91 Correct 17 ms 208 KB Output is correct
92 Partially correct 35 ms 208 KB Partially correct - number of queries: 6227
93 Incorrect 34 ms 208 KB Incorrect
94 Halted 0 ms 0 KB -