#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 5e5 + 3e2;
typedef long long ll;
//mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
vector<int> asked_values[MAXN];
int cnt = 0;
vector<int> ASK(int i){
vector<int> res;
if (asked_values[i].empty()){
cnt++;
assert(cnt <= 10000);
res = ask(i);
asked_values[i] = res;
//cout << i << ' ' << res.front() << ' ' << res.back() << endl;
} else res = asked_values[i];
return res;
}
int find_best(int n) {
vector<int> res;
int mx = 0;
int pos = 0;
while (pos < 500){
ASK(pos);
res = ASK(pos);
if (res[0] + res[1] == 0) return pos;
mx = max(mx, res[0] + res[1]);
pos++;
}
while (pos < n){
res = ASK(pos);
if (res[0] + res[1] == 0) return pos;
if (res[0] + res[1] < mx){
pos++;
continue;
}
int nxt = pos + 1;
int l = pos + 1, r = n - 1;
while (l <= r){
int m = (l + r) >> 1;
res = ASK(m);
if (res[0] + res[1] == 0) return m;
if (res[0] + res[1] < mx){
r = m - 1;
nxt = m;
} else {
auto tmp = ASK(pos);
if (res[0] == tmp[0]) l = m + 1; else
r = m - 1;
nxt = m + 1;
}
}
pos = nxt;
}
return n / 2;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
14 ms |
11976 KB |
Output is correct |
| 2 |
Correct |
14 ms |
12032 KB |
Output is correct |
| 3 |
Correct |
12 ms |
11976 KB |
Output is correct |
| 4 |
Correct |
15 ms |
11976 KB |
Output is correct |
| 5 |
Correct |
9 ms |
12056 KB |
Output is correct |
| 6 |
Correct |
8 ms |
12096 KB |
Output is correct |
| 7 |
Correct |
12 ms |
11976 KB |
Output is correct |
| 8 |
Correct |
11 ms |
11976 KB |
Output is correct |
| 9 |
Correct |
14 ms |
12040 KB |
Output is correct |
| 10 |
Correct |
14 ms |
11976 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
12112 KB |
Output is correct |
| 2 |
Correct |
13 ms |
12040 KB |
Output is correct |
| 3 |
Correct |
13 ms |
12108 KB |
Output is correct |
| 4 |
Correct |
9 ms |
12112 KB |
Output is correct |
| 5 |
Correct |
12 ms |
12032 KB |
Output is correct |
| 6 |
Correct |
8 ms |
12016 KB |
Output is correct |
| 7 |
Correct |
11 ms |
12044 KB |
Output is correct |
| 8 |
Correct |
14 ms |
12032 KB |
Output is correct |
| 9 |
Correct |
14 ms |
12036 KB |
Output is correct |
| 10 |
Correct |
9 ms |
12048 KB |
Output is correct |
| 11 |
Correct |
12 ms |
12048 KB |
Output is correct |
| 12 |
Correct |
9 ms |
12112 KB |
Output is correct |
| 13 |
Correct |
20 ms |
11976 KB |
Output is correct |
| 14 |
Correct |
14 ms |
11976 KB |
Output is correct |
| 15 |
Correct |
25 ms |
12044 KB |
Output is correct |
| 16 |
Partially correct |
81 ms |
12396 KB |
Partially correct - number of queries: 7230 |
| 17 |
Correct |
13 ms |
11976 KB |
Output is correct |
| 18 |
Partially correct |
79 ms |
12224 KB |
Partially correct - number of queries: 8371 |
| 19 |
Correct |
13 ms |
12024 KB |
Output is correct |
| 20 |
Correct |
35 ms |
12072 KB |
Output is correct |
| 21 |
Correct |
38 ms |
12032 KB |
Output is correct |
| 22 |
Correct |
15 ms |
11976 KB |
Output is correct |
| 23 |
Correct |
10 ms |
12112 KB |
Output is correct |
| 24 |
Correct |
10 ms |
12044 KB |
Output is correct |
| 25 |
Correct |
68 ms |
12160 KB |
Output is correct |
| 26 |
Correct |
61 ms |
12168 KB |
Output is correct |
| 27 |
Correct |
12 ms |
12028 KB |
Output is correct |
| 28 |
Partially correct |
66 ms |
12260 KB |
Partially correct - number of queries: 7910 |
| 29 |
Partially correct |
82 ms |
12096 KB |
Partially correct - number of queries: 6117 |
| 30 |
Partially correct |
108 ms |
12308 KB |
Partially correct - number of queries: 8324 |
| 31 |
Correct |
12 ms |
11976 KB |
Output is correct |
| 32 |
Correct |
11 ms |
12048 KB |
Output is correct |
| 33 |
Correct |
8 ms |
11976 KB |
Output is correct |
| 34 |
Correct |
42 ms |
12012 KB |
Output is correct |
| 35 |
Correct |
11 ms |
12048 KB |
Output is correct |
| 36 |
Correct |
25 ms |
12132 KB |
Output is correct |
| 37 |
Correct |
17 ms |
12024 KB |
Output is correct |
| 38 |
Correct |
13 ms |
11976 KB |
Output is correct |
| 39 |
Correct |
57 ms |
12032 KB |
Output is correct |
| 40 |
Partially correct |
87 ms |
12224 KB |
Partially correct - number of queries: 7213 |
| 41 |
Partially correct |
67 ms |
12152 KB |
Partially correct - number of queries: 5208 |
| 42 |
Partially correct |
71 ms |
12152 KB |
Partially correct - number of queries: 5208 |
| 43 |
Correct |
67 ms |
12096 KB |
Output is correct |
| 44 |
Correct |
53 ms |
12096 KB |
Output is correct |
| 45 |
Correct |
43 ms |
12096 KB |
Output is correct |
| 46 |
Correct |
9 ms |
12040 KB |
Output is correct |
| 47 |
Correct |
28 ms |
12156 KB |
Output is correct |
| 48 |
Partially correct |
93 ms |
12224 KB |
Partially correct - number of queries: 6335 |
| 49 |
Correct |
24 ms |
11952 KB |
Output is correct |
| 50 |
Partially correct |
47 ms |
12392 KB |
Partially correct - number of queries: 8373 |
| 51 |
Correct |
25 ms |
12144 KB |
Output is correct |
| 52 |
Correct |
14 ms |
12028 KB |
Output is correct |
| 53 |
Correct |
13 ms |
12020 KB |
Output is correct |
| 54 |
Correct |
39 ms |
12088 KB |
Output is correct |
| 55 |
Correct |
13 ms |
11976 KB |
Output is correct |
| 56 |
Partially correct |
113 ms |
12224 KB |
Partially correct - number of queries: 8373 |
| 57 |
Partially correct |
66 ms |
12160 KB |
Partially correct - number of queries: 6248 |
| 58 |
Partially correct |
37 ms |
12220 KB |
Partially correct - number of queries: 6321 |
| 59 |
Partially correct |
60 ms |
12148 KB |
Partially correct - number of queries: 5204 |
| 60 |
Correct |
61 ms |
12056 KB |
Output is correct |
| 61 |
Correct |
13 ms |
12016 KB |
Output is correct |
| 62 |
Correct |
13 ms |
11976 KB |
Output is correct |
| 63 |
Correct |
15 ms |
11976 KB |
Output is correct |
| 64 |
Correct |
9 ms |
12052 KB |
Output is correct |
| 65 |
Correct |
11 ms |
12044 KB |
Output is correct |
| 66 |
Correct |
14 ms |
12160 KB |
Output is correct |
| 67 |
Correct |
14 ms |
11976 KB |
Output is correct |
| 68 |
Correct |
12 ms |
11976 KB |
Output is correct |
| 69 |
Correct |
20 ms |
12040 KB |
Output is correct |
| 70 |
Correct |
14 ms |
12028 KB |
Output is correct |
| 71 |
Partially correct |
90 ms |
12304 KB |
Partially correct - number of queries: 8239 |
| 72 |
Correct |
17 ms |
11976 KB |
Output is correct |
| 73 |
Partially correct |
94 ms |
12260 KB |
Partially correct - number of queries: 8153 |
| 74 |
Partially correct |
82 ms |
12212 KB |
Partially correct - number of queries: 8197 |
| 75 |
Correct |
15 ms |
11976 KB |
Output is correct |
| 76 |
Partially correct |
72 ms |
12228 KB |
Partially correct - number of queries: 7142 |
| 77 |
Partially correct |
90 ms |
12532 KB |
Partially correct - number of queries: 8400 |
| 78 |
Correct |
21 ms |
11976 KB |
Output is correct |
| 79 |
Correct |
55 ms |
12140 KB |
Output is correct |
| 80 |
Partially correct |
115 ms |
12360 KB |
Partially correct - number of queries: 8443 |
| 81 |
Partially correct |
91 ms |
12172 KB |
Partially correct - number of queries: 8406 |
| 82 |
Partially correct |
82 ms |
12180 KB |
Partially correct - number of queries: 8323 |
| 83 |
Correct |
15 ms |
12056 KB |
Output is correct |
| 84 |
Partially correct |
66 ms |
12172 KB |
Partially correct - number of queries: 6940 |
| 85 |
Partially correct |
75 ms |
12556 KB |
Partially correct - number of queries: 8416 |
| 86 |
Correct |
14 ms |
11976 KB |
Output is correct |
| 87 |
Correct |
12 ms |
11976 KB |
Output is correct |
| 88 |
Correct |
12 ms |
12040 KB |
Output is correct |
| 89 |
Correct |
12 ms |
12044 KB |
Output is correct |
| 90 |
Correct |
12 ms |
12044 KB |
Output is correct |
| 91 |
Correct |
13 ms |
12048 KB |
Output is correct |
| 92 |
Correct |
14 ms |
11976 KB |
Output is correct |
| 93 |
Correct |
16 ms |
12096 KB |
Output is correct |
| 94 |
Correct |
15 ms |
12048 KB |
Output is correct |
| 95 |
Correct |
18 ms |
12048 KB |
Output is correct |
| 96 |
Correct |
13 ms |
11976 KB |
Output is correct |
| 97 |
Correct |
13 ms |
11976 KB |
Output is correct |
