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Submission #61777

# Submission time Handle Problem Language Result Execution time Memory
61777 2018-07-26T16:30:41 Z zadrga The Big Prize (IOI17_prize) C++14
100 / 100
 82 ms 10392 KB 
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF (1 << 30)
#define MOD (1000 * 1000 * 1000 + 7)
#define maxn 201111

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;

map<int, pii> m[maxn];
int ans;

pii ASK(int x){
	vector<int> v = ask(x);
	return mp(v[0], v[1]);
}

void solve(int l, int d){
	if(ans != -1 || l > d)
		return;

	int mid = (l + d) / 2;
	pii cur = ASK(mid);
	int sum = cur.fi + cur.se;
	if(sum == 0){
		ans = mid;
		return;
	}

	auto it = m[sum].upper_bound(mid);

	bool left = 1, right = 1;
	if(it != m[sum].begin()){
		it--;
		if(cur.se == it -> se.se)
			left = 0;
		it++;
	}

	if(it != m[sum].end()){
		if(cur.se == it -> se.se)
			right = 0;
	}

	m[sum][mid] = cur;
	if(left)
		solve(l, mid - 1);

	if(right)
		solve(mid + 1, d);
}

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

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 9636 KB Output is correct
2 Correct 16 ms 9780 KB Output is correct
3 Correct 16 ms 9860 KB Output is correct
4 Correct 13 ms 9860 KB Output is correct
5 Correct 15 ms 10012 KB Output is correct
6 Correct 12 ms 10012 KB Output is correct
7 Correct 13 ms 10012 KB Output is correct
8 Correct 15 ms 10012 KB Output is correct
9 Correct 12 ms 10012 KB Output is correct
10 Correct 13 ms 10012 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 10012 KB Output is correct
2 Correct 12 ms 10012 KB Output is correct
3 Correct 13 ms 10012 KB Output is correct
4 Correct 13 ms 10012 KB Output is correct
5 Correct 14 ms 10012 KB Output is correct
6 Correct 14 ms 10012 KB Output is correct
7 Correct 12 ms 10012 KB Output is correct
8 Correct 12 ms 10012 KB Output is correct
9 Correct 15 ms 10012 KB Output is correct
10 Correct 15 ms 10012 KB Output is correct
11 Correct 15 ms 10012 KB Output is correct
12 Correct 15 ms 10012 KB Output is correct
13 Correct 19 ms 10012 KB Output is correct
14 Correct 13 ms 10012 KB Output is correct
15 Correct 21 ms 10044 KB Output is correct
16 Correct 48 ms 10344 KB Output is correct
17 Correct 15 ms 10344 KB Output is correct
18 Correct 61 ms 10344 KB Output is correct
19 Correct 16 ms 10344 KB Output is correct
20 Correct 26 ms 10344 KB Output is correct
21 Correct 29 ms 10344 KB Output is correct
22 Correct 14 ms 10344 KB Output is correct
23 Correct 14 ms 10344 KB Output is correct
24 Correct 12 ms 10344 KB Output is correct
25 Correct 37 ms 10344 KB Output is correct
26 Correct 35 ms 10344 KB Output is correct
27 Correct 14 ms 10344 KB Output is correct
28 Correct 78 ms 10344 KB Output is correct
29 Correct 59 ms 10344 KB Output is correct
30 Correct 82 ms 10344 KB Output is correct
31 Correct 14 ms 10344 KB Output is correct
32 Correct 17 ms 10344 KB Output is correct
33 Correct 11 ms 10344 KB Output is correct
34 Correct 36 ms 10344 KB Output is correct
35 Correct 14 ms 10344 KB Output is correct
36 Correct 21 ms 10344 KB Output is correct
37 Correct 14 ms 10344 KB Output is correct
38 Correct 14 ms 10344 KB Output is correct
39 Correct 30 ms 10344 KB Output is correct
40 Correct 48 ms 10344 KB Output is correct
41 Correct 41 ms 10344 KB Output is correct
42 Correct 30 ms 10344 KB Output is correct
43 Correct 37 ms 10344 KB Output is correct
44 Correct 24 ms 10344 KB Output is correct
45 Correct 34 ms 10344 KB Output is correct
46 Correct 13 ms 10344 KB Output is correct
47 Correct 26 ms 10344 KB Output is correct
48 Correct 63 ms 10344 KB Output is correct
49 Correct 18 ms 10344 KB Output is correct
50 Correct 64 ms 10392 KB Output is correct
51 Correct 27 ms 10392 KB Output is correct
52 Correct 11 ms 10392 KB Output is correct
53 Correct 16 ms 10392 KB Output is correct
54 Correct 34 ms 10392 KB Output is correct
55 Correct 13 ms 10392 KB Output is correct
56 Correct 57 ms 10392 KB Output is correct
57 Correct 43 ms 10392 KB Output is correct
58 Correct 43 ms 10392 KB Output is correct
59 Correct 41 ms 10392 KB Output is correct
60 Correct 45 ms 10392 KB Output is correct
61 Correct 15 ms 10392 KB Output is correct
62 Correct 12 ms 10392 KB Output is correct
63 Correct 14 ms 10392 KB Output is correct
64 Correct 16 ms 10392 KB Output is correct
65 Correct 14 ms 10392 KB Output is correct
66 Correct 11 ms 10392 KB Output is correct
67 Correct 14 ms 10392 KB Output is correct
68 Correct 13 ms 10392 KB Output is correct
69 Correct 15 ms 10392 KB Output is correct
70 Correct 16 ms 10392 KB Output is correct
71 Correct 72 ms 10392 KB Output is correct
72 Correct 16 ms 10392 KB Output is correct
73 Correct 72 ms 10392 KB Output is correct
74 Correct 60 ms 10392 KB Output is correct
75 Correct 12 ms 10392 KB Output is correct
76 Correct 55 ms 10392 KB Output is correct
77 Correct 76 ms 10392 KB Output is correct
78 Correct 19 ms 10392 KB Output is correct
79 Correct 25 ms 10392 KB Output is correct
80 Correct 61 ms 10392 KB Output is correct
81 Correct 71 ms 10392 KB Output is correct
82 Correct 54 ms 10392 KB Output is correct
83 Correct 14 ms 10392 KB Output is correct
84 Correct 61 ms 10392 KB Output is correct
85 Correct 50 ms 10392 KB Output is correct
86 Correct 19 ms 10392 KB Output is correct
87 Correct 16 ms 10392 KB Output is correct
88 Correct 17 ms 10392 KB Output is correct
89 Correct 17 ms 10392 KB Output is correct
90 Correct 14 ms 10392 KB Output is correct
91 Correct 16 ms 10392 KB Output is correct
92 Correct 12 ms 10392 KB Output is correct
93 Correct 15 ms 10392 KB Output is correct
94 Correct 14 ms 10392 KB Output is correct
95 Correct 17 ms 10392 KB Output is correct
96 Correct 14 ms 10392 KB Output is correct
97 Correct 13 ms 10392 KB Output is correct