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Submission #622995

# Submission time Handle Problem Language Result Execution time Memory
622995 2022-08-04T23:51:05 Z AbdelmagedNour The Big Prize (IOI17_prize) C++17
100 / 100
 66 ms 5464 KB 
#include<bits/stdc++.h>
using namespace std;
#include "prize.h"
//#include "grader.cpp"
int res=-1;
vector<vector<int>>v;
map<vector<int>,set<int>>mp;
void divide(int l,int r){
    if(l>r||res!=-1)return;
    if(l==r){
        v[l]=ask(l);
        if(v[l][0]+v[l][1]==0)res=l;
        return;
    }
    int md=(l+r)>>1;
    if(v[md].size()==0)v[md]=ask(md);
    if(v[md][0]+v[md][1]==0)res=md;
    mp[v[md]].insert(md);
    if(!(mp[v[md]].size()&&*(mp[v[md]].begin())<md)&&v[md][0])divide(l,md-1);
    if(!(mp[v[md]].size()&&*(mp[v[md]].rbegin())>md)&&v[md][1])divide(md+1,r);
}
int find_best(int n){
    v.clear();
    v.resize(n);
    mp.clear();
    res=-1;
    v[0]=ask(0);
    v[n-1]=ask(n-1);
    mp[v[0]].insert(0);
    mp[v[n-1]].insert(n-1);
    if(v[0][0]+v[0][1]==0)return 0;
    if(v[n-1][0]+v[n-1][1]==0)return n-1;
    divide(1,n-2);
	return res;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4900 KB Output is correct
2 Correct 3 ms 4892 KB Output is correct
3 Correct 3 ms 4900 KB Output is correct
4 Correct 2 ms 4936 KB Output is correct
5 Correct 3 ms 4904 KB Output is correct
6 Correct 3 ms 4892 KB Output is correct
7 Correct 3 ms 4900 KB Output is correct
8 Correct 3 ms 4900 KB Output is correct
9 Correct 3 ms 4888 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 4892 KB Output is correct
2 Correct 3 ms 4896 KB Output is correct
3 Correct 3 ms 4900 KB Output is correct
4 Correct 4 ms 4892 KB Output is correct
5 Correct 3 ms 4896 KB Output is correct
6 Correct 3 ms 4944 KB Output is correct
7 Correct 3 ms 4936 KB Output is correct
8 Correct 3 ms 4904 KB Output is correct
9 Correct 3 ms 4896 KB Output is correct
10 Correct 3 ms 4944 KB Output is correct
11 Correct 5 ms 5020 KB Output is correct
12 Correct 3 ms 4992 KB Output is correct
13 Correct 11 ms 5024 KB Output is correct
14 Correct 2 ms 720 KB Output is correct
15 Correct 8 ms 5044 KB Output is correct
16 Correct 41 ms 5208 KB Output is correct
17 Correct 3 ms 4944 KB Output is correct
18 Correct 39 ms 5376 KB Output is correct
19 Correct 3 ms 4892 KB Output is correct
20 Correct 9 ms 2640 KB Output is correct
21 Correct 10 ms 5184 KB Output is correct
22 Correct 6 ms 5028 KB Output is correct
23 Correct 2 ms 4992 KB Output is correct
24 Correct 3 ms 4892 KB Output is correct
25 Correct 22 ms 5132 KB Output is correct
26 Correct 18 ms 5080 KB Output is correct
27 Correct 3 ms 4892 KB Output is correct
28 Correct 31 ms 5344 KB Output is correct
29 Correct 34 ms 5252 KB Output is correct
30 Correct 40 ms 5272 KB Output is correct
31 Correct 3 ms 4900 KB Output is correct
32 Correct 6 ms 5024 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 13 ms 5024 KB Output is correct
35 Correct 3 ms 5016 KB Output is correct
36 Correct 11 ms 5072 KB Output is correct
37 Correct 4 ms 4900 KB Output is correct
38 Correct 3 ms 4888 KB Output is correct
39 Correct 19 ms 5144 KB Output is correct
40 Correct 21 ms 5304 KB Output is correct
41 Correct 14 ms 5212 KB Output is correct
42 Correct 14 ms 5228 KB Output is correct
43 Correct 18 ms 5128 KB Output is correct
44 Correct 14 ms 5120 KB Output is correct
45 Correct 14 ms 5084 KB Output is correct
46 Correct 5 ms 4904 KB Output is correct
47 Correct 21 ms 5144 KB Output is correct
48 Correct 31 ms 5236 KB Output is correct
49 Correct 6 ms 4936 KB Output is correct
50 Correct 33 ms 5396 KB Output is correct
51 Correct 18 ms 5108 KB Output is correct
52 Correct 3 ms 4944 KB Output is correct
53 Correct 4 ms 4896 KB Output is correct
54 Correct 24 ms 5148 KB Output is correct
55 Correct 3 ms 4900 KB Output is correct
56 Correct 43 ms 5464 KB Output is correct
57 Correct 34 ms 5268 KB Output is correct
58 Correct 47 ms 5192 KB Output is correct
59 Correct 32 ms 5208 KB Output is correct
60 Correct 20 ms 5100 KB Output is correct
61 Correct 4 ms 4896 KB Output is correct
62 Correct 3 ms 4944 KB Output is correct
63 Correct 5 ms 4888 KB Output is correct
64 Correct 4 ms 4900 KB Output is correct
65 Correct 3 ms 4944 KB Output is correct
66 Correct 3 ms 4896 KB Output is correct
67 Correct 3 ms 4900 KB Output is correct
68 Correct 3 ms 4900 KB Output is correct
69 Correct 5 ms 4944 KB Output is correct
70 Correct 3 ms 4896 KB Output is correct
71 Correct 45 ms 5276 KB Output is correct
72 Correct 7 ms 5008 KB Output is correct
73 Correct 45 ms 5336 KB Output is correct
74 Correct 45 ms 5364 KB Output is correct
75 Correct 4 ms 4944 KB Output is correct
76 Correct 35 ms 5424 KB Output is correct
77 Correct 28 ms 5376 KB Output is correct
78 Correct 9 ms 5016 KB Output is correct
79 Correct 14 ms 5180 KB Output is correct
80 Correct 24 ms 5380 KB Output is correct
81 Correct 44 ms 5448 KB Output is correct
82 Correct 48 ms 5384 KB Output is correct
83 Correct 4 ms 4944 KB Output is correct
84 Correct 48 ms 5220 KB Output is correct
85 Correct 66 ms 5340 KB Output is correct
86 Correct 9 ms 4944 KB Output is correct
87 Correct 4 ms 4944 KB Output is correct
88 Correct 7 ms 5040 KB Output is correct
89 Correct 7 ms 4944 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 5 ms 4944 KB Output is correct
94 Correct 6 ms 4944 KB Output is correct
95 Correct 7 ms 4944 KB Output is correct
96 Correct 6 ms 4944 KB Output is correct
97 Correct 3 ms 4944 KB Output is correct