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Submission #718165

# Submission time Handle Problem Language Result Execution time Memory
718165 2023-04-03T13:43:43 Z Jarif_Rahman The Big Prize (IOI17_prize) C++17
100 / 100
 55 ms 5232 KB 
#include "prize.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;

vector<int> asked[200000];
int ans = -1, mx = -1;
vector<int> Ask(int i){
    if(asked[i].empty()) asked[i] = ask(i);
    mx = max(mx, asked[i][0]+asked[i][1]);
    return asked[i];
}
int Ask_cnt(int i){
    auto v = Ask(i);
    if(v[0]+v[1] == 0) ans = i;
    return v[0]+v[1];
}

void solve(int l, int r){
    if(ans != -1) return;
    while(Ask_cnt(l) != mx && l <= r) l++;
    if(ans != -1) return;
    while(Ask_cnt(r) != mx && r >= l) r--;
    if(ans != -1) return;

    if(l >= r) return;

    auto a = Ask(l), b = Ask(r);
    if(a[0] == b[0] && a[1] == b[1]) return;
    int md = (l+r)/2;
    solve(l, md);
    solve(md, r);
}

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

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4944 KB Output is correct
2 Correct 3 ms 4944 KB Output is correct
3 Correct 3 ms 4944 KB Output is correct
4 Correct 3 ms 4988 KB Output is correct
5 Correct 3 ms 4944 KB Output is correct
6 Correct 3 ms 5072 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 3 ms 4988 KB Output is correct
9 Correct 3 ms 4988 KB Output is correct
10 Correct 3 ms 4944 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 3 ms 4944 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4944 KB Output is correct
5 Correct 3 ms 4944 KB Output is correct
6 Correct 3 ms 4944 KB Output is correct
7 Correct 3 ms 4944 KB Output is correct
8 Correct 4 ms 4944 KB Output is correct
9 Correct 3 ms 5072 KB Output is correct
10 Correct 3 ms 4944 KB Output is correct
11 Correct 4 ms 4944 KB Output is correct
12 Correct 3 ms 4968 KB Output is correct
13 Correct 5 ms 4988 KB Output is correct
14 Correct 5 ms 4944 KB Output is correct
15 Correct 8 ms 4996 KB Output is correct
16 Correct 37 ms 5064 KB Output is correct
17 Correct 3 ms 4944 KB Output is correct
18 Correct 55 ms 5120 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 8 ms 4944 KB Output is correct
21 Correct 17 ms 5000 KB Output is correct
22 Correct 6 ms 4944 KB Output is correct
23 Correct 3 ms 4944 KB Output is correct
24 Correct 4 ms 5060 KB Output is correct
25 Correct 22 ms 5024 KB Output is correct
26 Correct 13 ms 5060 KB Output is correct
27 Correct 3 ms 4964 KB Output is correct
28 Correct 22 ms 5184 KB Output is correct
29 Correct 38 ms 5064 KB Output is correct
30 Correct 26 ms 5232 KB Output is correct
31 Correct 3 ms 4992 KB Output is correct
32 Correct 6 ms 4988 KB Output is correct
33 Correct 3 ms 4944 KB Output is correct
34 Correct 18 ms 5012 KB Output is correct
35 Correct 4 ms 4944 KB Output is correct
36 Correct 14 ms 4996 KB Output is correct
37 Correct 4 ms 4944 KB Output is correct
38 Correct 3 ms 4988 KB Output is correct
39 Correct 24 ms 5032 KB Output is correct
40 Correct 46 ms 4992 KB Output is correct
41 Correct 26 ms 4988 KB Output is correct
42 Correct 23 ms 4988 KB Output is correct
43 Correct 20 ms 5012 KB Output is correct
44 Correct 23 ms 4944 KB Output is correct
45 Correct 11 ms 5028 KB Output is correct
46 Correct 3 ms 4992 KB Output is correct
47 Correct 17 ms 5108 KB Output is correct
48 Correct 39 ms 4988 KB Output is correct
49 Correct 6 ms 4976 KB Output is correct
50 Correct 23 ms 5116 KB Output is correct
51 Correct 22 ms 4988 KB Output is correct
52 Correct 3 ms 4992 KB Output is correct
53 Correct 5 ms 4944 KB Output is correct
54 Correct 17 ms 4944 KB Output is correct
55 Correct 3 ms 4944 KB Output is correct
56 Correct 42 ms 5064 KB Output is correct
57 Correct 38 ms 4988 KB Output is correct
58 Correct 36 ms 5072 KB Output is correct
59 Correct 27 ms 4992 KB Output is correct
60 Correct 23 ms 4980 KB Output is correct
61 Correct 4 ms 4944 KB Output is correct
62 Correct 3 ms 4944 KB Output is correct
63 Correct 4 ms 4992 KB Output is correct
64 Correct 4 ms 4944 KB Output is correct
65 Correct 3 ms 5064 KB Output is correct
66 Correct 8 ms 4992 KB Output is correct
67 Correct 9 ms 4992 KB Output is correct
68 Correct 6 ms 4944 KB Output is correct
69 Correct 7 ms 5112 KB Output is correct
70 Correct 5 ms 4980 KB Output is correct
71 Correct 46 ms 5184 KB Output is correct
72 Correct 7 ms 4996 KB Output is correct
73 Correct 32 ms 5116 KB Output is correct
74 Correct 45 ms 5020 KB Output is correct
75 Correct 4 ms 4944 KB Output is correct
76 Correct 34 ms 5044 KB Output is correct
77 Correct 53 ms 5052 KB Output is correct
78 Correct 10 ms 4996 KB Output is correct
79 Correct 22 ms 5032 KB Output is correct
80 Correct 44 ms 5124 KB Output is correct
81 Correct 43 ms 5112 KB Output is correct
82 Correct 35 ms 5112 KB Output is correct
83 Correct 4 ms 4944 KB Output is correct
84 Correct 41 ms 5064 KB Output is correct
85 Correct 39 ms 5024 KB Output is correct
86 Correct 6 ms 5012 KB Output is correct
87 Correct 4 ms 4944 KB Output is correct
88 Correct 6 ms 5004 KB Output is correct
89 Correct 8 ms 5008 KB Output is correct
90 Correct 3 ms 4944 KB Output is correct
91 Correct 5 ms 4944 KB Output is correct
92 Correct 3 ms 4944 KB Output is correct
93 Correct 6 ms 4944 KB Output is correct
94 Correct 6 ms 4944 KB Output is correct
95 Correct 6 ms 5012 KB Output is correct
96 Correct 5 ms 4944 KB Output is correct
97 Correct 3 ms 4944 KB Output is correct