#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
const int MAXN = 2e5 + 5;
const int SIZE = 300;
int cnt[MAXN], num_q;
vi memo[MAXN];
vi query(int x) {
if (memo[x].size() > 0)
return memo[x];
num_q++;
vi ret = ask(x);
return memo[x] = ret;
}
int find_best(int n) {
memset(cnt, 0, sizeof cnt);
fill(memo, memo + n + 1, vi());
num_q = 0;
/*
int mx = -1;
for (int i = 0, j; i < n; i = j + 1) {
if (i == n - 1) return i;
j = i;
vi cur = query(i);
if (cur[0] + cur[1] == 0) return i;
if (cur[0] + cur[1] < mx) continue;
mx = max(mx, cur[0] + cur[1]);
int lo = i + 1, hi = n - 1;
while (lo <= hi) {
int mid = (lo + hi) >> 1;
vi now = query(mid);
if (now[0] + now[1] == 0) return mid;
if (now == cur) {
lo = mid + 1;
j = mid;
} else {
hi = mid - 1;
}
}
}
*/
for (int i = 0; i < n; i++) {
if (i == n - 1) return i;
vi cur = query(i);
int type = cur[0] + cur[1];
if (type == 0) return i;
cnt[type]++;
if (query(i + 1) != cur)
continue;
int b;
for (b = i / SIZE; (b + 1) * SIZE < n; b++) {
if (query((b + 1) * SIZE) != cur)
break;
}
int lo = max(i + 1, b * SIZE), hi = min(n - 1, (b + 1) * SIZE - 1);
if (i == (b + 1) * SIZE - 1) {
lo = (b + 1) * SIZE;
hi = min(n - 1, (b + 2) * SIZE - 1);
}
while (lo < hi) {
int mid = (lo + hi) >> 1;
vi now = query(mid);
if (now == cur || (now[0] == cnt[type] + cur[0] && now[1] >= cur[1])) {
lo = mid + 1;
} else {
hi = mid;
}
}
i = hi - 1;
}
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:78:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
5752 KB |
Output is correct |
| 2 |
Correct |
12 ms |
5944 KB |
Output is correct |
| 3 |
Correct |
9 ms |
5944 KB |
Output is correct |
| 4 |
Correct |
15 ms |
5944 KB |
Output is correct |
| 5 |
Correct |
14 ms |
5944 KB |
Output is correct |
| 6 |
Correct |
12 ms |
5948 KB |
Output is correct |
| 7 |
Correct |
13 ms |
5992 KB |
Output is correct |
| 8 |
Correct |
10 ms |
6020 KB |
Output is correct |
| 9 |
Correct |
12 ms |
6020 KB |
Output is correct |
| 10 |
Correct |
20 ms |
6020 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
6020 KB |
Output is correct |
| 2 |
Correct |
13 ms |
6020 KB |
Output is correct |
| 3 |
Correct |
14 ms |
6020 KB |
Output is correct |
| 4 |
Correct |
16 ms |
6020 KB |
Output is correct |
| 5 |
Correct |
11 ms |
6020 KB |
Output is correct |
| 6 |
Correct |
7 ms |
6020 KB |
Output is correct |
| 7 |
Correct |
11 ms |
6020 KB |
Output is correct |
| 8 |
Correct |
14 ms |
6020 KB |
Output is correct |
| 9 |
Correct |
13 ms |
6020 KB |
Output is correct |
| 10 |
Correct |
18 ms |
6020 KB |
Output is correct |
| 11 |
Correct |
13 ms |
6076 KB |
Output is correct |
| 12 |
Correct |
9 ms |
6076 KB |
Output is correct |
| 13 |
Correct |
24 ms |
6076 KB |
Output is correct |
| 14 |
Correct |
10 ms |
6076 KB |
Output is correct |
| 15 |
Correct |
21 ms |
6076 KB |
Output is correct |
| 16 |
Correct |
59 ms |
6240 KB |
Output is correct |
| 17 |
Correct |
9 ms |
6240 KB |
Output is correct |
| 18 |
Partially correct |
55 ms |
6240 KB |
Partially correct - number of queries: 5083 |
| 19 |
Correct |
8 ms |
6240 KB |
Output is correct |
| 20 |
Correct |
18 ms |
6240 KB |
Output is correct |
| 21 |
Correct |
19 ms |
6240 KB |
Output is correct |
| 22 |
Correct |
16 ms |
6240 KB |
Output is correct |
| 23 |
Correct |
9 ms |
6240 KB |
Output is correct |
| 24 |
Correct |
8 ms |
6240 KB |
Output is correct |
| 25 |
Correct |
31 ms |
6240 KB |
Output is correct |
| 26 |
Correct |
31 ms |
6240 KB |
Output is correct |
| 27 |
Correct |
12 ms |
6240 KB |
Output is correct |
| 28 |
Correct |
42 ms |
6240 KB |
Output is correct |
| 29 |
Correct |
35 ms |
6240 KB |
Output is correct |
| 30 |
Partially correct |
51 ms |
6240 KB |
Partially correct - number of queries: 5039 |
| 31 |
Correct |
9 ms |
6240 KB |
Output is correct |
| 32 |
Correct |
15 ms |
6240 KB |
Output is correct |
| 33 |
Correct |
7 ms |
6240 KB |
Output is correct |
| 34 |
Correct |
24 ms |
6240 KB |
Output is correct |
| 35 |
Correct |
18 ms |
6240 KB |
Output is correct |
| 36 |
Correct |
21 ms |
6240 KB |
Output is correct |
| 37 |
Correct |
10 ms |
6240 KB |
Output is correct |
| 38 |
Correct |
10 ms |
6240 KB |
Output is correct |
| 39 |
Correct |
35 ms |
6240 KB |
Output is correct |
| 40 |
Correct |
56 ms |
6240 KB |
Output is correct |
| 41 |
Correct |
46 ms |
6240 KB |
Output is correct |
| 42 |
Correct |
39 ms |
6240 KB |
Output is correct |
| 43 |
Correct |
38 ms |
6240 KB |
Output is correct |
| 44 |
Correct |
29 ms |
6240 KB |
Output is correct |
| 45 |
Correct |
25 ms |
6240 KB |
Output is correct |
| 46 |
Correct |
9 ms |
6240 KB |
Output is correct |
| 47 |
Correct |
32 ms |
6240 KB |
Output is correct |
| 48 |
Correct |
45 ms |
6240 KB |
Output is correct |
| 49 |
Correct |
11 ms |
6240 KB |
Output is correct |
| 50 |
Partially correct |
44 ms |
6240 KB |
Partially correct - number of queries: 5085 |
| 51 |
Correct |
25 ms |
6240 KB |
Output is correct |
| 52 |
Correct |
10 ms |
6240 KB |
Output is correct |
| 53 |
Correct |
17 ms |
6240 KB |
Output is correct |
| 54 |
Correct |
37 ms |
6240 KB |
Output is correct |
| 55 |
Correct |
8 ms |
6240 KB |
Output is correct |
| 56 |
Partially correct |
56 ms |
6240 KB |
Partially correct - number of queries: 5085 |
| 57 |
Correct |
30 ms |
6240 KB |
Output is correct |
| 58 |
Correct |
41 ms |
6240 KB |
Output is correct |
| 59 |
Correct |
51 ms |
6240 KB |
Output is correct |
| 60 |
Correct |
43 ms |
6240 KB |
Output is correct |
| 61 |
Correct |
22 ms |
6240 KB |
Output is correct |
| 62 |
Correct |
13 ms |
6240 KB |
Output is correct |
| 63 |
Correct |
16 ms |
6240 KB |
Output is correct |
| 64 |
Correct |
16 ms |
6240 KB |
Output is correct |
| 65 |
Correct |
22 ms |
6240 KB |
Output is correct |
| 66 |
Correct |
13 ms |
6240 KB |
Output is correct |
| 67 |
Correct |
19 ms |
6240 KB |
Output is correct |
| 68 |
Correct |
10 ms |
6240 KB |
Output is correct |
| 69 |
Correct |
15 ms |
6240 KB |
Output is correct |
| 70 |
Correct |
16 ms |
6240 KB |
Output is correct |
| 71 |
Partially correct |
58 ms |
6240 KB |
Partially correct - number of queries: 5387 |
| 72 |
Correct |
20 ms |
6240 KB |
Output is correct |
| 73 |
Partially correct |
68 ms |
6240 KB |
Partially correct - number of queries: 5317 |
| 74 |
Partially correct |
69 ms |
6240 KB |
Partially correct - number of queries: 5347 |
| 75 |
Correct |
14 ms |
6240 KB |
Output is correct |
| 76 |
Correct |
45 ms |
6388 KB |
Output is correct |
| 77 |
Partially correct |
54 ms |
6388 KB |
Partially correct - number of queries: 5250 |
| 78 |
Correct |
24 ms |
6388 KB |
Output is correct |
| 79 |
Correct |
41 ms |
6388 KB |
Output is correct |
| 80 |
Partially correct |
49 ms |
6388 KB |
Partially correct - number of queries: 5264 |
| 81 |
Partially correct |
57 ms |
6388 KB |
Partially correct - number of queries: 5237 |
| 82 |
Partially correct |
77 ms |
6388 KB |
Partially correct - number of queries: 5191 |
| 83 |
Correct |
13 ms |
6388 KB |
Output is correct |
| 84 |
Correct |
65 ms |
6388 KB |
Output is correct |
| 85 |
Partially correct |
74 ms |
6388 KB |
Partially correct - number of queries: 5226 |
| 86 |
Correct |
14 ms |
6388 KB |
Output is correct |
| 87 |
Correct |
21 ms |
6388 KB |
Output is correct |
| 88 |
Correct |
14 ms |
6388 KB |
Output is correct |
| 89 |
Correct |
13 ms |
6388 KB |
Output is correct |
| 90 |
Correct |
13 ms |
6388 KB |
Output is correct |
| 91 |
Correct |
14 ms |
6388 KB |
Output is correct |
| 92 |
Correct |
11 ms |
6388 KB |
Output is correct |
| 93 |
Correct |
13 ms |
6388 KB |
Output is correct |
| 94 |
Correct |
15 ms |
6388 KB |
Output is correct |
| 95 |
Correct |
17 ms |
6388 KB |
Output is correct |
| 96 |
Correct |
20 ms |
6388 KB |
Output is correct |
| 97 |
Correct |
12 ms |
6388 KB |
Output is correct |
