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Submission #542988

# Submission time Handle Problem Language Result Execution time Memory
542988 2022-03-28T17:12:09 Z MilosMilutinovic The Big Prize (IOI17_prize) C++14
100 / 100
 54 ms 9952 KB 
#include "prize.h"
#include <bits/stdc++.h>
#define SZ 200005
 
using namespace std;
typedef pair <int,int> P;
 
map <int,int> ve[SZ];
int ret=-1;
 
P query(int id)
{
	auto v=ask(id);
	return {v[0],v[1]};
}
void solve(int l,int r)
{
	if(ret!=-1||l>r) return;
	int mid=l+r>>1;
	P v=query(mid);
	int sz=v.first+v.second;
	if(sz==0)
	{
		ret=mid;
		return;
	}
	bool L=true,R=true;
	auto it=ve[sz].upper_bound(mid);
	if(it!=ve[sz].begin()&&(*prev(it)).second==v.first) L=false;
	if(it!=ve[sz].end()&&(*it).second==v.first) R=false;
	ve[sz][mid]=v.first;
	if(L) solve(l,mid-1);
	if(R) solve(mid+1,r);
}
int find_best(int n)
{
	solve(0,n-1);
	return ret;
}

Compilation message

prize.cpp: In function 'void solve(int, int)':
prize.cpp:19:11: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   19 |  int mid=l+r>>1;
      |          ~^~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9680 KB Output is correct
2 Correct 6 ms 9680 KB Output is correct
3 Correct 5 ms 9688 KB Output is correct
4 Correct 8 ms 9688 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9684 KB Output is correct
8 Correct 6 ms 9680 KB Output is correct
9 Correct 7 ms 9684 KB Output is correct
10 Correct 5 ms 9680 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9628 KB Output is correct
2 Correct 6 ms 9680 KB Output is correct
3 Correct 6 ms 9684 KB Output is correct
4 Correct 5 ms 9680 KB Output is correct
5 Correct 6 ms 9680 KB Output is correct
6 Correct 7 ms 9684 KB Output is correct
7 Correct 7 ms 9808 KB Output is correct
8 Correct 7 ms 9808 KB Output is correct
9 Correct 5 ms 9680 KB Output is correct
10 Correct 6 ms 9680 KB Output is correct
11 Correct 9 ms 9684 KB Output is correct
12 Correct 6 ms 9680 KB Output is correct
13 Correct 12 ms 9696 KB Output is correct
14 Correct 6 ms 9680 KB Output is correct
15 Correct 10 ms 9668 KB Output is correct
16 Correct 54 ms 9828 KB Output is correct
17 Correct 8 ms 9680 KB Output is correct
18 Correct 41 ms 9816 KB Output is correct
19 Correct 7 ms 9684 KB Output is correct
20 Correct 15 ms 9680 KB Output is correct
21 Correct 20 ms 9672 KB Output is correct
22 Correct 10 ms 9684 KB Output is correct
23 Correct 6 ms 9680 KB Output is correct
24 Correct 6 ms 9680 KB Output is correct
25 Correct 27 ms 9712 KB Output is correct
26 Correct 32 ms 9744 KB Output is correct
27 Correct 7 ms 9680 KB Output is correct
28 Correct 42 ms 9808 KB Output is correct
29 Correct 33 ms 9784 KB Output is correct
30 Correct 44 ms 9804 KB Output is correct
31 Correct 6 ms 9680 KB Output is correct
32 Correct 10 ms 9676 KB Output is correct
33 Correct 5 ms 9660 KB Output is correct
34 Correct 12 ms 9740 KB Output is correct
35 Correct 6 ms 9692 KB Output is correct
36 Correct 15 ms 9720 KB Output is correct
37 Correct 7 ms 9680 KB Output is correct
38 Correct 6 ms 9668 KB Output is correct
39 Correct 25 ms 9812 KB Output is correct
40 Correct 32 ms 9796 KB Output is correct
41 Correct 30 ms 9708 KB Output is correct
42 Correct 29 ms 9712 KB Output is correct
43 Correct 27 ms 9732 KB Output is correct
44 Correct 21 ms 9680 KB Output is correct
45 Correct 17 ms 9836 KB Output is correct
46 Correct 5 ms 9680 KB Output is correct
47 Correct 25 ms 9680 KB Output is correct
48 Correct 30 ms 9784 KB Output is correct
49 Correct 7 ms 9696 KB Output is correct
50 Correct 37 ms 9824 KB Output is correct
51 Correct 20 ms 9720 KB Output is correct
52 Correct 8 ms 9680 KB Output is correct
53 Correct 8 ms 9680 KB Output is correct
54 Correct 23 ms 9680 KB Output is correct
55 Correct 6 ms 9680 KB Output is correct
56 Correct 53 ms 9808 KB Output is correct
57 Correct 23 ms 9836 KB Output is correct
58 Correct 37 ms 9716 KB Output is correct
59 Correct 35 ms 9692 KB Output is correct
60 Correct 32 ms 9680 KB Output is correct
61 Correct 7 ms 9680 KB Output is correct
62 Correct 6 ms 9688 KB Output is correct
63 Correct 7 ms 9688 KB Output is correct
64 Correct 6 ms 9680 KB Output is correct
65 Correct 6 ms 9680 KB Output is correct
66 Correct 6 ms 9688 KB Output is correct
67 Correct 5 ms 9688 KB Output is correct
68 Correct 7 ms 9680 KB Output is correct
69 Correct 6 ms 9680 KB Output is correct
70 Correct 7 ms 9680 KB Output is correct
71 Correct 45 ms 9952 KB Output is correct
72 Correct 9 ms 9680 KB Output is correct
73 Correct 50 ms 9872 KB Output is correct
74 Correct 47 ms 9888 KB Output is correct
75 Correct 7 ms 9680 KB Output is correct
76 Correct 31 ms 9840 KB Output is correct
77 Correct 44 ms 9772 KB Output is correct
78 Correct 10 ms 9704 KB Output is correct
79 Correct 23 ms 9744 KB Output is correct
80 Correct 43 ms 9848 KB Output is correct
81 Correct 37 ms 9800 KB Output is correct
82 Correct 51 ms 9880 KB Output is correct
83 Correct 9 ms 9680 KB Output is correct
84 Correct 36 ms 9796 KB Output is correct
85 Correct 46 ms 9872 KB Output is correct
86 Correct 10 ms 9692 KB Output is correct
87 Correct 8 ms 9688 KB Output is correct
88 Correct 10 ms 9712 KB Output is correct
89 Correct 10 ms 9596 KB Output is correct
90 Correct 7 ms 9680 KB Output is correct
91 Correct 8 ms 9680 KB Output is correct
92 Correct 6 ms 9680 KB Output is correct
93 Correct 7 ms 9708 KB Output is correct
94 Correct 9 ms 9680 KB Output is correct
95 Correct 8 ms 9636 KB Output is correct
96 Correct 9 ms 9680 KB Output is correct
97 Correct 5 ms 9680 KB Output is correct