oj.uz

Submission #246025

# Submission time Handle Problem Language Result Execution time Memory
246025 2020-07-08T02:58:10 Z thecodingwizard The Big Prize (IOI17_prize) C++11
100 / 100
 60 ms 512 KB 
#include "prize.h"

using namespace std;

#define vi vector<int>

int biggestCt = -1;

int solve(int l, int r, int numLeft, int numRight) {
    if (l > r) return -1;

    if (numLeft + numRight == biggestCt) return -1;
    for (int mid = (l+r)/2; mid <= r; mid++) {
        vi res = ask(mid);
        int sum = res[0] + res[1];
        if (sum == 0) return mid;
        bool change = false;
        if (sum > biggestCt) {
            biggestCt = sum;
        }
        if (sum != biggestCt) continue;
        int ans = solve(mid+1, r, res[0], change ? -1 : numRight);
        if (ans != -1) return ans;
        return solve(l, (l+r)/2-1, change ? -1 : numLeft, res[1] + mid-(l+r)/2);
    }
    for (int mid = (l+r)/2-1; mid >= l; mid--) {
        vi res = ask(mid);
        int sum = res[0] + res[1];
        if (sum == 0) return mid;
        bool change = false;
        if (sum > biggestCt) {
            biggestCt = sum;
        }
        if (sum != biggestCt) continue;
        int ans = solve(l, mid-1, change ? -1 : numLeft, res[1]);
        if (ans != -1) return ans;
        break;
    }
	return -1;
}

int find_best(int n) {
    return solve(0, n-1, 0, 0);
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 5 ms 256 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 6 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 512 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 256 KB Output is correct
11 Correct 8 ms 384 KB Output is correct
12 Correct 9 ms 256 KB Output is correct
13 Correct 5 ms 256 KB Output is correct
14 Correct 11 ms 384 KB Output is correct
15 Correct 22 ms 512 KB Output is correct
16 Correct 12 ms 384 KB Output is correct
17 Correct 49 ms 256 KB Output is correct
18 Correct 5 ms 256 KB Output is correct
19 Correct 40 ms 256 KB Output is correct
20 Correct 13 ms 512 KB Output is correct
21 Correct 29 ms 360 KB Output is correct
22 Correct 32 ms 256 KB Output is correct
23 Correct 6 ms 256 KB Output is correct
24 Correct 10 ms 256 KB Output is correct
25 Correct 26 ms 256 KB Output is correct
26 Correct 26 ms 256 KB Output is correct
27 Correct 5 ms 256 KB Output is correct
28 Correct 7 ms 256 KB Output is correct
29 Correct 9 ms 256 KB Output is correct
30 Correct 5 ms 256 KB Output is correct
31 Correct 25 ms 384 KB Output is correct
32 Correct 7 ms 256 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 34 ms 256 KB Output is correct
35 Correct 6 ms 512 KB Output is correct
36 Correct 40 ms 384 KB Output is correct
37 Correct 8 ms 384 KB Output is correct
38 Correct 7 ms 256 KB Output is correct
39 Correct 27 ms 256 KB Output is correct
40 Correct 5 ms 256 KB Output is correct
41 Correct 27 ms 256 KB Output is correct
42 Correct 24 ms 256 KB Output is correct
43 Correct 24 ms 256 KB Output is correct
44 Correct 36 ms 256 KB Output is correct
45 Correct 19 ms 384 KB Output is correct
46 Correct 34 ms 376 KB Output is correct
47 Correct 21 ms 384 KB Output is correct
48 Correct 10 ms 368 KB Output is correct
49 Correct 54 ms 256 KB Output is correct
50 Correct 5 ms 256 KB Output is correct
51 Correct 35 ms 384 KB Output is correct
52 Correct 43 ms 384 KB Output is correct
53 Correct 5 ms 384 KB Output is correct
54 Correct 34 ms 384 KB Output is correct
55 Correct 55 ms 256 KB Output is correct
56 Correct 5 ms 256 KB Output is correct
57 Correct 14 ms 384 KB Output is correct
58 Correct 11 ms 384 KB Output is correct
59 Correct 26 ms 256 KB Output is correct
60 Correct 29 ms 384 KB Output is correct
61 Correct 5 ms 256 KB Output is correct
62 Correct 6 ms 256 KB Output is correct
63 Correct 5 ms 504 KB Output is correct
64 Correct 6 ms 384 KB Output is correct
65 Correct 5 ms 388 KB Output is correct
66 Correct 6 ms 512 KB Output is correct
67 Correct 9 ms 384 KB Output is correct
68 Correct 6 ms 256 KB Output is correct
69 Correct 9 ms 256 KB Output is correct
70 Correct 6 ms 356 KB Output is correct
71 Correct 60 ms 384 KB Output is correct
72 Correct 11 ms 256 KB Output is correct
73 Correct 54 ms 256 KB Output is correct
74 Correct 43 ms 256 KB Output is correct
75 Correct 6 ms 256 KB Output is correct
76 Correct 37 ms 384 KB Output is correct
77 Correct 57 ms 256 KB Output is correct
78 Correct 8 ms 256 KB Output is correct
79 Correct 22 ms 384 KB Output is correct
80 Correct 33 ms 256 KB Output is correct
81 Correct 55 ms 256 KB Output is correct
82 Correct 55 ms 256 KB Output is correct
83 Correct 7 ms 256 KB Output is correct
84 Correct 47 ms 288 KB Output is correct
85 Correct 41 ms 256 KB Output is correct
86 Correct 12 ms 384 KB Output is correct
87 Correct 7 ms 256 KB Output is correct
88 Correct 11 ms 256 KB Output is correct
89 Correct 11 ms 256 KB Output is correct
90 Correct 5 ms 384 KB Output is correct
91 Correct 11 ms 256 KB Output is correct
92 Correct 5 ms 432 KB Output is correct
93 Correct 8 ms 384 KB Output is correct
94 Correct 8 ms 256 KB Output is correct
95 Correct 7 ms 384 KB Output is correct
96 Correct 7 ms 256 KB Output is correct
97 Correct 5 ms 384 KB Output is correct