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Submission #642847

# Submission time Handle Problem Language Result Execution time Memory
642847 2022-09-20T15:46:00 Z Alexandruabcde The Big Prize (IOI17_prize) C++14
100 / 100
 64 ms 10672 KB 
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

typedef pair <int, int> PII;

constexpr int NMAX = 2e5 + 5;

set <int> S[NMAX];
int ans;
int CntStanga[NMAX];

void DivideConquer (int Left, int Right) {
    if (Left > Right) return;

    int mid = (Left + Right) / 2;
    vector <int> a = ask(mid);
    int tip = a[0] + a[1];
    CntStanga[mid] = a[0];

    if (tip == 0) {
        ans = mid;
        return;
    }

    auto it = S[tip].insert(mid).first;

    if (it == S[tip].begin())
        DivideConquer(Left, mid-1);
    else if (CntStanga[*prev(it)] != CntStanga[mid]) DivideConquer(Left, mid-1);

    if (ans != -1) return;

    if (it == prev(S[tip].end()))
        DivideConquer(mid + 1, Right);
    else if (CntStanga[*next(it)] != CntStanga[mid]) DivideConquer(mid+1, Right);
}

int find_best(int n) {
    ans = -1;

    DivideConquer(0, n-1);

	return ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9692 KB Output is correct
2 Correct 5 ms 9680 KB Output is correct
3 Correct 7 ms 9688 KB Output is correct
4 Correct 6 ms 9680 KB Output is correct
5 Correct 5 ms 9688 KB Output is correct
6 Correct 5 ms 9688 KB Output is correct
7 Correct 7 ms 9816 KB Output is correct
8 Correct 5 ms 9680 KB Output is correct
9 Correct 6 ms 9688 KB Output is correct
10 Correct 6 ms 9636 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9680 KB Output is correct
2 Correct 6 ms 9680 KB Output is correct
3 Correct 7 ms 9680 KB Output is correct
4 Correct 6 ms 9688 KB Output is correct
5 Correct 6 ms 9744 KB Output is correct
6 Correct 7 ms 9740 KB Output is correct
7 Correct 6 ms 9688 KB Output is correct
8 Correct 6 ms 9680 KB Output is correct
9 Correct 5 ms 9688 KB Output is correct
10 Correct 7 ms 9680 KB Output is correct
11 Correct 8 ms 9808 KB Output is correct
12 Correct 5 ms 9680 KB Output is correct
13 Correct 10 ms 10184 KB Output is correct
14 Correct 6 ms 9680 KB Output is correct
15 Correct 8 ms 9824 KB Output is correct
16 Correct 45 ms 10456 KB Output is correct
17 Correct 6 ms 9680 KB Output is correct
18 Correct 25 ms 10656 KB Output is correct
19 Correct 6 ms 9680 KB Output is correct
20 Correct 18 ms 9848 KB Output is correct
21 Correct 19 ms 9936 KB Output is correct
22 Correct 8 ms 9752 KB Output is correct
23 Correct 5 ms 9700 KB Output is correct
24 Correct 5 ms 9680 KB Output is correct
25 Correct 33 ms 10196 KB Output is correct
26 Correct 28 ms 10108 KB Output is correct
27 Correct 6 ms 9680 KB Output is correct
28 Correct 39 ms 10560 KB Output is correct
29 Correct 37 ms 10480 KB Output is correct
30 Correct 60 ms 10656 KB Output is correct
31 Correct 5 ms 9680 KB Output is correct
32 Correct 10 ms 9924 KB Output is correct
33 Correct 5 ms 9680 KB Output is correct
34 Correct 19 ms 9988 KB Output is correct
35 Correct 7 ms 9800 KB Output is correct
36 Correct 18 ms 9876 KB Output is correct
37 Correct 6 ms 9692 KB Output is correct
38 Correct 6 ms 9680 KB Output is correct
39 Correct 24 ms 10064 KB Output is correct
40 Correct 37 ms 10532 KB Output is correct
41 Correct 42 ms 10192 KB Output is correct
42 Correct 17 ms 10232 KB Output is correct
43 Correct 21 ms 10148 KB Output is correct
44 Correct 31 ms 10060 KB Output is correct
45 Correct 14 ms 9964 KB Output is correct
46 Correct 6 ms 9680 KB Output is correct
47 Correct 27 ms 10068 KB Output is correct
48 Correct 31 ms 10360 KB Output is correct
49 Correct 7 ms 9680 KB Output is correct
50 Correct 62 ms 10588 KB Output is correct
51 Correct 23 ms 9960 KB Output is correct
52 Correct 7 ms 9680 KB Output is correct
53 Correct 7 ms 9812 KB Output is correct
54 Correct 17 ms 10068 KB Output is correct
55 Correct 7 ms 9680 KB Output is correct
56 Correct 28 ms 10584 KB Output is correct
57 Correct 38 ms 10328 KB Output is correct
58 Correct 37 ms 10312 KB Output is correct
59 Correct 31 ms 10208 KB Output is correct
60 Correct 38 ms 10196 KB Output is correct
61 Correct 7 ms 9824 KB Output is correct
62 Correct 5 ms 9680 KB Output is correct
63 Correct 7 ms 9808 KB Output is correct
64 Correct 7 ms 9680 KB Output is correct
65 Correct 6 ms 9684 KB Output is correct
66 Correct 7 ms 9680 KB Output is correct
67 Correct 6 ms 9680 KB Output is correct
68 Correct 7 ms 9688 KB Output is correct
69 Correct 6 ms 9680 KB Output is correct
70 Correct 7 ms 9680 KB Output is correct
71 Correct 50 ms 10596 KB Output is correct
72 Correct 11 ms 10120 KB Output is correct
73 Correct 47 ms 10672 KB Output is correct
74 Correct 52 ms 10672 KB Output is correct
75 Correct 6 ms 9888 KB Output is correct
76 Correct 34 ms 10648 KB Output is correct
77 Correct 46 ms 10588 KB Output is correct
78 Correct 12 ms 10064 KB Output is correct
79 Correct 33 ms 10524 KB Output is correct
80 Correct 51 ms 10612 KB Output is correct
81 Correct 48 ms 10580 KB Output is correct
82 Correct 64 ms 10628 KB Output is correct
83 Correct 8 ms 9808 KB Output is correct
84 Correct 48 ms 10528 KB Output is correct
85 Correct 52 ms 10604 KB Output is correct
86 Correct 13 ms 10072 KB Output is correct
87 Correct 10 ms 9868 KB Output is correct
88 Correct 11 ms 10036 KB Output is correct
89 Correct 8 ms 10048 KB Output is correct
90 Correct 7 ms 9808 KB Output is correct
91 Correct 10 ms 9928 KB Output is correct
92 Correct 6 ms 9680 KB Output is correct
93 Correct 8 ms 9952 KB Output is correct
94 Correct 11 ms 9964 KB Output is correct
95 Correct 10 ms 9980 KB Output is correct
96 Correct 9 ms 9888 KB Output is correct
97 Correct 6 ms 9700 KB Output is correct