#include "prize.h"
#include <vector>
#define pii pair<int,int>
using namespace std;
const int seg = 511;//473-1
int pre;
int nc;//1+2+3+4
int call;
vector<int> v[200000];
void my_ask(int i) {
if (v[i].empty()) v[i] = ask(i),++call;
}
int search(int l,int r) {
int t = -1;
while (l <= r) {
int m = (l + r) >> 1;
my_ask(m);
if (v[m][0] + v[m][1] != nc) t = m, r = m - 1;
else if (v[m][0] == pre) l = m + 1;
else r = m - 1;
}
return t;
}
int find_best(int n) {
if (n <= 5000) {
for (int i = 0; i < n; ++i) {
my_ask(i);
if (v[i][0] + v[i][1] == 0) return i;
}
}
vector<pii > g;
int i = 0, j = seg-1;
int last = 0;
while (i < n) {
if (j >= n) j = n-1;
my_ask(j);
int s = v[j][0] + v[j][1];
if (s == 0) return j;
if (nc < s) nc = s;
g.push_back({i,j});
i += seg; j += seg;
}
for (i = 0; i < n && call <= seg; ++i) {
my_ask(i);
int s = v[i][0] + v[i][1];
if (s == 0) return i;
if (nc < s) nc = s;
}
for (;v[last].size();++last) {
int s = v[last][0] + v[last][1];
if (nc > s) ++pre;
}
for (i = 0; i < g.size();) {
int e = g[i].second;
if (e < last || (v[e][0]+v[e][1]==nc&&v[e][0]==pre)) {
++i;
continue;
}
int t = search(last,e);
if (v[t][0] + v[t][1] == 0) return t;
++pre;
last = t+1;
}
return 0;
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:54:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (i = 0; i < g.size();) {
~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
11 ms |
5020 KB |
Output is correct |
| 2 |
Correct |
8 ms |
5136 KB |
Output is correct |
| 3 |
Correct |
12 ms |
5024 KB |
Output is correct |
| 4 |
Correct |
7 ms |
5068 KB |
Output is correct |
| 5 |
Correct |
11 ms |
4940 KB |
Output is correct |
| 6 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 7 |
Correct |
8 ms |
5012 KB |
Output is correct |
| 8 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 9 |
Correct |
8 ms |
5032 KB |
Output is correct |
| 10 |
Correct |
10 ms |
5036 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
5168 KB |
Output is correct |
| 2 |
Correct |
11 ms |
4992 KB |
Output is correct |
| 3 |
Correct |
8 ms |
5024 KB |
Output is correct |
| 4 |
Correct |
11 ms |
5020 KB |
Output is correct |
| 5 |
Correct |
11 ms |
4992 KB |
Output is correct |
| 6 |
Correct |
7 ms |
5128 KB |
Output is correct |
| 7 |
Correct |
11 ms |
5040 KB |
Output is correct |
| 8 |
Correct |
8 ms |
5024 KB |
Output is correct |
| 9 |
Correct |
10 ms |
5028 KB |
Output is correct |
| 10 |
Correct |
9 ms |
5036 KB |
Output is correct |
| 11 |
Correct |
10 ms |
5016 KB |
Output is correct |
| 12 |
Correct |
12 ms |
5008 KB |
Output is correct |
| 13 |
Correct |
15 ms |
5160 KB |
Output is correct |
| 14 |
Correct |
15 ms |
4992 KB |
Output is correct |
| 15 |
Correct |
12 ms |
5008 KB |
Output is correct |
| 16 |
Correct |
37 ms |
5212 KB |
Output is correct |
| 17 |
Correct |
22 ms |
5016 KB |
Output is correct |
| 18 |
Correct |
73 ms |
5076 KB |
Output is correct |
| 19 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 20 |
Correct |
25 ms |
4992 KB |
Output is correct |
| 21 |
Correct |
22 ms |
5012 KB |
Output is correct |
| 22 |
Correct |
11 ms |
5116 KB |
Output is correct |
| 23 |
Correct |
7 ms |
5056 KB |
Output is correct |
| 24 |
Correct |
10 ms |
5032 KB |
Output is correct |
| 25 |
Correct |
32 ms |
4992 KB |
Output is correct |
| 26 |
Correct |
24 ms |
5012 KB |
Output is correct |
| 27 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 28 |
Correct |
37 ms |
5160 KB |
Output is correct |
| 29 |
Correct |
29 ms |
5132 KB |
Output is correct |
| 30 |
Correct |
22 ms |
5256 KB |
Output is correct |
| 31 |
Correct |
12 ms |
4992 KB |
Output is correct |
| 32 |
Correct |
12 ms |
4992 KB |
Output is correct |
| 33 |
Correct |
5 ms |
4992 KB |
Output is correct |
| 34 |
Correct |
20 ms |
5124 KB |
Output is correct |
| 35 |
Correct |
14 ms |
4992 KB |
Output is correct |
| 36 |
Correct |
22 ms |
4992 KB |
Output is correct |
| 37 |
Correct |
11 ms |
4988 KB |
Output is correct |
| 38 |
Correct |
9 ms |
4992 KB |
Output is correct |
| 39 |
Correct |
20 ms |
5032 KB |
Output is correct |
| 40 |
Correct |
22 ms |
5148 KB |
Output is correct |
| 41 |
Correct |
22 ms |
5028 KB |
Output is correct |
| 42 |
Correct |
29 ms |
5148 KB |
Output is correct |
| 43 |
Correct |
18 ms |
5100 KB |
Output is correct |
| 44 |
Correct |
17 ms |
5056 KB |
Output is correct |
| 45 |
Correct |
25 ms |
5028 KB |
Output is correct |
| 46 |
Correct |
9 ms |
5028 KB |
Output is correct |
| 47 |
Correct |
15 ms |
5168 KB |
Output is correct |
| 48 |
Correct |
40 ms |
5100 KB |
Output is correct |
| 49 |
Correct |
12 ms |
5116 KB |
Output is correct |
| 50 |
Correct |
33 ms |
5132 KB |
Output is correct |
| 51 |
Correct |
20 ms |
4992 KB |
Output is correct |
| 52 |
Correct |
11 ms |
4992 KB |
Output is correct |
| 53 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 54 |
Correct |
19 ms |
5120 KB |
Output is correct |
| 55 |
Correct |
7 ms |
5032 KB |
Output is correct |
| 56 |
Correct |
22 ms |
5172 KB |
Output is correct |
| 57 |
Correct |
27 ms |
5120 KB |
Output is correct |
| 58 |
Correct |
38 ms |
5032 KB |
Output is correct |
| 59 |
Correct |
30 ms |
5112 KB |
Output is correct |
| 60 |
Correct |
24 ms |
5096 KB |
Output is correct |
| 61 |
Correct |
14 ms |
5004 KB |
Output is correct |
| 62 |
Correct |
8 ms |
5116 KB |
Output is correct |
| 63 |
Correct |
13 ms |
4992 KB |
Output is correct |
| 64 |
Correct |
11 ms |
5112 KB |
Output is correct |
| 65 |
Correct |
13 ms |
4992 KB |
Output is correct |
| 66 |
Correct |
15 ms |
4992 KB |
Output is correct |
| 67 |
Correct |
12 ms |
5000 KB |
Output is correct |
| 68 |
Correct |
16 ms |
4992 KB |
Output is correct |
| 69 |
Correct |
15 ms |
5008 KB |
Output is correct |
| 70 |
Correct |
10 ms |
5160 KB |
Output is correct |
| 71 |
Partially correct |
40 ms |
5120 KB |
Partially correct - number of queries: 5150 |
| 72 |
Correct |
12 ms |
4992 KB |
Output is correct |
| 73 |
Partially correct |
50 ms |
5172 KB |
Partially correct - number of queries: 5087 |
| 74 |
Partially correct |
23 ms |
5164 KB |
Partially correct - number of queries: 5114 |
| 75 |
Correct |
10 ms |
4992 KB |
Output is correct |
| 76 |
Correct |
31 ms |
5144 KB |
Output is correct |
| 77 |
Correct |
32 ms |
5140 KB |
Output is correct |
| 78 |
Correct |
11 ms |
5040 KB |
Output is correct |
| 79 |
Correct |
15 ms |
5108 KB |
Output is correct |
| 80 |
Correct |
62 ms |
5144 KB |
Output is correct |
| 81 |
Correct |
41 ms |
5112 KB |
Output is correct |
| 82 |
Correct |
36 ms |
5164 KB |
Output is correct |
| 83 |
Correct |
9 ms |
5016 KB |
Output is correct |
| 84 |
Correct |
20 ms |
5148 KB |
Output is correct |
| 85 |
Correct |
59 ms |
5140 KB |
Output is correct |
| 86 |
Correct |
36 ms |
5032 KB |
Output is correct |
| 87 |
Correct |
11 ms |
5032 KB |
Output is correct |
| 88 |
Correct |
47 ms |
5112 KB |
Output is correct |
| 89 |
Correct |
29 ms |
5112 KB |
Output is correct |
| 90 |
Correct |
9 ms |
5024 KB |
Output is correct |
| 91 |
Correct |
30 ms |
4992 KB |
Output is correct |
| 92 |
Correct |
27 ms |
5112 KB |
Output is correct |
| 93 |
Correct |
32 ms |
5128 KB |
Output is correct |
| 94 |
Correct |
48 ms |
5092 KB |
Output is correct |
| 95 |
Correct |
34 ms |
5140 KB |
Output is correct |
| 96 |
Correct |
25 ms |
5132 KB |
Output is correct |
| 97 |
Correct |
40 ms |
5112 KB |
Output is correct |
