Submission #771940

# Submission time Handle Problem Language Result Execution time Memory
771940 2023-07-03T12:29:27 Z _martynas The Big Prize (IOI17_prize) C++11
90 / 100
52 ms 336 KB
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

const int jump = 512;

int find_best(int n) {
    mt19937 rng(0);
    int mx_sum = 0;
    for(int k = 0; k < 500; k++) {
        auto v = ask(rng() % n);
        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(v_p[0]+v_p[1] == mx_sum && v[0] == v_p[0]) {
                    i += jump;
                    continue;
                }
            }
            int l = i, r = min(i+jump, 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


*/
# Verdict Execution time Memory Grader output
1 Correct 5 ms 208 KB Output is correct
2 Correct 8 ms 208 KB Output is correct
3 Correct 3 ms 288 KB Output is correct
4 Correct 12 ms 292 KB Output is correct
5 Correct 3 ms 288 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 4 ms 284 KB Output is correct
8 Correct 5 ms 292 KB Output is correct
9 Correct 3 ms 288 KB Output is correct
10 Correct 7 ms 208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 6 ms 208 KB Output is correct
2 Correct 8 ms 208 KB Output is correct
3 Correct 4 ms 292 KB Output is correct
4 Correct 12 ms 292 KB Output is correct
5 Correct 4 ms 288 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 7 ms 288 KB Output is correct
8 Correct 7 ms 208 KB Output is correct
9 Correct 7 ms 208 KB Output is correct
10 Correct 7 ms 208 KB Output is correct
11 Correct 4 ms 336 KB Output is correct
12 Correct 2 ms 292 KB Output is correct
13 Correct 11 ms 208 KB Output is correct
14 Correct 7 ms 208 KB Output is correct
15 Correct 8 ms 288 KB Output is correct
16 Partially correct 36 ms 296 KB Partially correct - number of queries: 5192
17 Correct 5 ms 208 KB Output is correct
18 Partially correct 52 ms 208 KB Partially correct - number of queries: 6164
19 Correct 2 ms 296 KB Output is correct
20 Correct 13 ms 292 KB Output is correct
21 Correct 22 ms 208 KB Output is correct
22 Correct 8 ms 288 KB Output is correct
23 Correct 2 ms 288 KB Output is correct
24 Correct 2 ms 336 KB Output is correct
25 Correct 20 ms 268 KB Output is correct
26 Correct 28 ms 296 KB Output is correct
27 Correct 6 ms 208 KB Output is correct
28 Partially correct 46 ms 208 KB Partially correct - number of queries: 6224
29 Correct 21 ms 288 KB Output is correct
30 Partially correct 20 ms 292 KB Partially correct - number of queries: 6116
31 Correct 5 ms 288 KB Output is correct
32 Correct 11 ms 208 KB Output is correct
33 Correct 4 ms 208 KB Output is correct
34 Correct 8 ms 296 KB Output is correct
35 Correct 6 ms 288 KB Output is correct
36 Correct 6 ms 292 KB Output is correct
37 Correct 6 ms 208 KB Output is correct
38 Correct 3 ms 292 KB Output is correct
39 Correct 10 ms 292 KB Output is correct
40 Partially correct 20 ms 328 KB Partially correct - number of queries: 5300
41 Correct 25 ms 208 KB Output is correct
42 Correct 32 ms 292 KB Output is correct
43 Correct 30 ms 288 KB Output is correct
44 Correct 16 ms 292 KB Output is correct
45 Correct 12 ms 208 KB Output is correct
46 Correct 2 ms 288 KB Output is correct
47 Correct 11 ms 292 KB Output is correct
48 Correct 35 ms 336 KB Output is correct
49 Correct 7 ms 208 KB Output is correct
50 Partially correct 47 ms 208 KB Partially correct - number of queries: 6164
51 Correct 25 ms 208 KB Output is correct
52 Correct 2 ms 296 KB Output is correct
53 Correct 11 ms 208 KB Output is correct
54 Correct 13 ms 208 KB Output is correct
55 Correct 2 ms 292 KB Output is correct
56 Partially correct 51 ms 208 KB Partially correct - number of queries: 6164
57 Correct 26 ms 296 KB Output is correct
58 Correct 29 ms 208 KB Output is correct
59 Correct 13 ms 268 KB Output is correct
60 Correct 29 ms 208 KB Output is correct
61 Correct 7 ms 208 KB Output is correct
62 Correct 3 ms 208 KB Output is correct
63 Correct 11 ms 208 KB Output is correct
64 Correct 7 ms 292 KB Output is correct
65 Correct 5 ms 296 KB Output is correct
66 Correct 15 ms 208 KB Output is correct
67 Correct 11 ms 208 KB Output is correct
68 Correct 4 ms 336 KB Output is correct
69 Correct 6 ms 288 KB Output is correct
70 Correct 10 ms 208 KB Output is correct
71 Partially correct 47 ms 208 KB Partially correct - number of queries: 6231
72 Correct 14 ms 208 KB Output is correct
73 Partially correct 51 ms 208 KB Partially correct - number of queries: 6151
74 Partially correct 36 ms 208 KB Partially correct - number of queries: 6187
75 Correct 7 ms 208 KB Output is correct
76 Partially correct 47 ms 208 KB Partially correct - number of queries: 5442
77 Partially correct 37 ms 208 KB Partially correct - number of queries: 6244
78 Correct 10 ms 208 KB Output is correct
79 Correct 13 ms 288 KB Output is correct
80 Partially correct 22 ms 292 KB Partially correct - number of queries: 6259
81 Partially correct 46 ms 208 KB Partially correct - number of queries: 6261
82 Partially correct 27 ms 208 KB Partially correct - number of queries: 6106
83 Correct 5 ms 296 KB Output is correct
84 Partially correct 32 ms 208 KB Partially correct - number of queries: 5261
85 Partially correct 50 ms 208 KB Partially correct - number of queries: 6246
86 Partially correct 49 ms 208 KB Partially correct - number of queries: 5644
87 Correct 11 ms 208 KB Output is correct
88 Partially correct 38 ms 208 KB Partially correct - number of queries: 5380
89 Correct 23 ms 208 KB Output is correct
90 Correct 9 ms 208 KB Output is correct
91 Correct 36 ms 208 KB Output is correct
92 Correct 21 ms 208 KB Output is correct
93 Partially correct 49 ms 208 KB Partially correct - number of queries: 6168
94 Partially correct 51 ms 208 KB Partially correct - number of queries: 6489
95 Partially correct 29 ms 208 KB Partially correct - number of queries: 6502
96 Partially correct 41 ms 208 KB Partially correct - number of queries: 6437
97 Partially correct 25 ms 208 KB Partially correct - number of queries: 5816