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Submission #366051

# Submission time Handle Problem Language Result Execution time Memory
366051 2021-02-12T20:54:06 Z denkendoemeer The Big Prize (IOI17_prize) C++14
100 / 100
 55 ms 2304 KB 
#include<bits/stdc++.h>
#include "prize.h"
using namespace std;
vector<pair<int,int>>ans;
unordered_map<int,set<int>>mp;
int calc(int st,int dr)
{
    if (st>dr)
        return -1;
    int mij=(st+dr)/2;
    vector<int>aux=ask(mij);
    ans[mij]=make_pair(aux[0],aux[1]);
    int sum=ans[mij].first+ans[mij].second;
    if (sum==0)
        return mij;
    auto it=mp[sum].insert(mij).first;
    if (it==mp[sum].begin() || ans[*prev(it)].first!=ans[mij].first){
        int auxi=calc(st,mij-1);
        if (auxi!=-1)
            return auxi;
    }
    if (it==--mp[sum].end() || ans[*next(it)].second!=ans[mij].second){
        int auxi=calc(mij+1,dr);
        if (auxi!=-1)
            return auxi;
    }
    return -1;
}
int find_best(int n)
{
    ans.resize(n);
    return calc(0,n-1);
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1900 KB Output is correct
2 Correct 2 ms 1900 KB Output is correct
3 Correct 2 ms 1900 KB Output is correct
4 Correct 2 ms 1900 KB Output is correct
5 Correct 2 ms 1900 KB Output is correct
6 Correct 2 ms 1900 KB Output is correct
7 Correct 2 ms 1900 KB Output is correct
8 Correct 2 ms 1900 KB Output is correct
9 Correct 1 ms 1900 KB Output is correct
10 Correct 2 ms 1900 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1900 KB Output is correct
2 Correct 2 ms 1900 KB Output is correct
3 Correct 2 ms 1900 KB Output is correct
4 Correct 2 ms 1900 KB Output is correct
5 Correct 2 ms 1900 KB Output is correct
6 Correct 2 ms 1900 KB Output is correct
7 Correct 2 ms 1900 KB Output is correct
8 Correct 2 ms 2028 KB Output is correct
9 Correct 2 ms 1900 KB Output is correct
10 Correct 2 ms 1900 KB Output is correct
11 Correct 4 ms 1900 KB Output is correct
12 Correct 2 ms 1900 KB Output is correct
13 Correct 6 ms 1900 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 7 ms 1900 KB Output is correct
16 Correct 45 ms 2028 KB Output is correct
17 Correct 2 ms 1900 KB Output is correct
18 Correct 28 ms 2296 KB Output is correct
19 Correct 2 ms 2028 KB Output is correct
20 Correct 11 ms 1132 KB Output is correct
21 Correct 12 ms 2148 KB Output is correct
22 Correct 5 ms 1900 KB Output is correct
23 Correct 2 ms 1900 KB Output is correct
24 Correct 2 ms 2028 KB Output is correct
25 Correct 23 ms 2028 KB Output is correct
26 Correct 27 ms 2028 KB Output is correct
27 Correct 2 ms 2080 KB Output is correct
28 Correct 24 ms 2112 KB Output is correct
29 Correct 31 ms 2028 KB Output is correct
30 Correct 52 ms 2240 KB Output is correct
31 Correct 2 ms 1900 KB Output is correct
32 Correct 5 ms 1900 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 16 ms 1900 KB Output is correct
35 Correct 4 ms 1900 KB Output is correct
36 Correct 7 ms 2104 KB Output is correct
37 Correct 3 ms 1900 KB Output is correct
38 Correct 2 ms 1900 KB Output is correct
39 Correct 21 ms 2028 KB Output is correct
40 Correct 38 ms 2156 KB Output is correct
41 Correct 16 ms 2196 KB Output is correct
42 Correct 27 ms 2028 KB Output is correct
43 Correct 26 ms 2028 KB Output is correct
44 Correct 19 ms 1900 KB Output is correct
45 Correct 15 ms 1900 KB Output is correct
46 Correct 2 ms 1900 KB Output is correct
47 Correct 23 ms 2028 KB Output is correct
48 Correct 28 ms 2156 KB Output is correct
49 Correct 5 ms 1900 KB Output is correct
50 Correct 51 ms 2156 KB Output is correct
51 Correct 23 ms 2028 KB Output is correct
52 Correct 2 ms 1900 KB Output is correct
53 Correct 2 ms 1900 KB Output is correct
54 Correct 23 ms 2028 KB Output is correct
55 Correct 2 ms 1900 KB Output is correct
56 Correct 34 ms 2140 KB Output is correct
57 Correct 28 ms 2028 KB Output is correct
58 Correct 32 ms 2220 KB Output is correct
59 Correct 23 ms 2304 KB Output is correct
60 Correct 16 ms 2044 KB Output is correct
61 Correct 3 ms 1900 KB Output is correct
62 Correct 2 ms 1900 KB Output is correct
63 Correct 3 ms 1900 KB Output is correct
64 Correct 2 ms 1900 KB Output is correct
65 Correct 2 ms 1900 KB Output is correct
66 Correct 2 ms 2080 KB Output is correct
67 Correct 2 ms 1944 KB Output is correct
68 Correct 2 ms 1900 KB Output is correct
69 Correct 2 ms 1900 KB Output is correct
70 Correct 2 ms 1900 KB Output is correct
71 Correct 28 ms 2292 KB Output is correct
72 Correct 5 ms 1900 KB Output is correct
73 Correct 45 ms 2284 KB Output is correct
74 Correct 55 ms 2156 KB Output is correct
75 Correct 3 ms 2080 KB Output is correct
76 Correct 41 ms 2028 KB Output is correct
77 Correct 45 ms 2156 KB Output is correct
78 Correct 5 ms 1900 KB Output is correct
79 Correct 24 ms 2028 KB Output is correct
80 Correct 42 ms 2284 KB Output is correct
81 Correct 30 ms 2208 KB Output is correct
82 Correct 44 ms 2156 KB Output is correct
83 Correct 4 ms 1900 KB Output is correct
84 Correct 41 ms 2052 KB Output is correct
85 Correct 42 ms 2156 KB Output is correct
86 Correct 7 ms 1900 KB Output is correct
87 Correct 5 ms 2028 KB Output is correct
88 Correct 7 ms 1900 KB Output is correct
89 Correct 7 ms 1900 KB Output is correct
90 Correct 3 ms 1900 KB Output is correct
91 Correct 5 ms 1900 KB Output is correct
92 Correct 2 ms 1900 KB Output is correct
93 Correct 6 ms 1900 KB Output is correct
94 Correct 6 ms 1900 KB Output is correct
95 Correct 6 ms 1900 KB Output is correct
96 Correct 5 ms 1900 KB Output is correct
97 Correct 2 ms 1900 KB Output is correct