#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 tgt) {
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;
if (tgt == 1) return t;
}
else if (v[m][0] == pre) l = m + 1,tgt=v[m][0]-pre;
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 <= 472; ++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,v[e][0]-pre);
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:56:16: 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 |
4992 KB |
Output is correct |
2 |
Correct |
7 ms |
5272 KB |
Output is correct |
3 |
Correct |
12 ms |
4992 KB |
Output is correct |
4 |
Correct |
9 ms |
4992 KB |
Output is correct |
5 |
Correct |
12 ms |
4992 KB |
Output is correct |
6 |
Correct |
8 ms |
4992 KB |
Output is correct |
7 |
Correct |
9 ms |
5112 KB |
Output is correct |
8 |
Correct |
8 ms |
5112 KB |
Output is correct |
9 |
Correct |
10 ms |
5040 KB |
Output is correct |
10 |
Correct |
9 ms |
4992 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
4992 KB |
Output is correct |
2 |
Correct |
10 ms |
5124 KB |
Output is correct |
3 |
Correct |
8 ms |
5136 KB |
Output is correct |
4 |
Correct |
8 ms |
4992 KB |
Output is correct |
5 |
Correct |
9 ms |
4992 KB |
Output is correct |
6 |
Correct |
12 ms |
4992 KB |
Output is correct |
7 |
Correct |
8 ms |
5108 KB |
Output is correct |
8 |
Correct |
9 ms |
4992 KB |
Output is correct |
9 |
Correct |
12 ms |
4992 KB |
Output is correct |
10 |
Correct |
9 ms |
4992 KB |
Output is correct |
11 |
Correct |
13 ms |
4992 KB |
Output is correct |
12 |
Correct |
11 ms |
5112 KB |
Output is correct |
13 |
Correct |
9 ms |
5116 KB |
Output is correct |
14 |
Correct |
13 ms |
5120 KB |
Output is correct |
15 |
Correct |
13 ms |
4992 KB |
Output is correct |
16 |
Correct |
21 ms |
5172 KB |
Output is correct |
17 |
Correct |
8 ms |
5136 KB |
Output is correct |
18 |
Correct |
23 ms |
5264 KB |
Output is correct |
19 |
Correct |
11 ms |
4992 KB |
Output is correct |
20 |
Correct |
18 ms |
4992 KB |
Output is correct |
21 |
Correct |
39 ms |
4992 KB |
Output is correct |
22 |
Correct |
16 ms |
5120 KB |
Output is correct |
23 |
Correct |
9 ms |
4992 KB |
Output is correct |
24 |
Correct |
11 ms |
4992 KB |
Output is correct |
25 |
Correct |
37 ms |
4992 KB |
Output is correct |
26 |
Correct |
22 ms |
5112 KB |
Output is correct |
27 |
Correct |
10 ms |
4992 KB |
Output is correct |
28 |
Correct |
43 ms |
5120 KB |
Output is correct |
29 |
Correct |
21 ms |
5232 KB |
Output is correct |
30 |
Correct |
22 ms |
5264 KB |
Output is correct |
31 |
Correct |
8 ms |
5140 KB |
Output is correct |
32 |
Correct |
13 ms |
4992 KB |
Output is correct |
33 |
Correct |
6 ms |
4992 KB |
Output is correct |
34 |
Correct |
23 ms |
5112 KB |
Output is correct |
35 |
Correct |
11 ms |
5096 KB |
Output is correct |
36 |
Correct |
14 ms |
4992 KB |
Output is correct |
37 |
Correct |
12 ms |
4992 KB |
Output is correct |
38 |
Correct |
9 ms |
4992 KB |
Output is correct |
39 |
Correct |
34 ms |
4992 KB |
Output is correct |
40 |
Correct |
50 ms |
5112 KB |
Output is correct |
41 |
Correct |
36 ms |
4992 KB |
Output is correct |
42 |
Correct |
23 ms |
4992 KB |
Output is correct |
43 |
Correct |
22 ms |
5240 KB |
Output is correct |
44 |
Correct |
30 ms |
5112 KB |
Output is correct |
45 |
Correct |
27 ms |
4992 KB |
Output is correct |
46 |
Correct |
11 ms |
5112 KB |
Output is correct |
47 |
Correct |
31 ms |
5160 KB |
Output is correct |
48 |
Correct |
30 ms |
5160 KB |
Output is correct |
49 |
Correct |
15 ms |
4992 KB |
Output is correct |
50 |
Correct |
37 ms |
5136 KB |
Output is correct |
51 |
Correct |
13 ms |
5188 KB |
Output is correct |
52 |
Correct |
11 ms |
5112 KB |
Output is correct |
53 |
Correct |
9 ms |
4992 KB |
Output is correct |
54 |
Correct |
14 ms |
5192 KB |
Output is correct |
55 |
Correct |
8 ms |
5140 KB |
Output is correct |
56 |
Correct |
48 ms |
5116 KB |
Output is correct |
57 |
Correct |
31 ms |
5112 KB |
Output is correct |
58 |
Correct |
35 ms |
5132 KB |
Output is correct |
59 |
Correct |
41 ms |
5116 KB |
Output is correct |
60 |
Correct |
31 ms |
5132 KB |
Output is correct |
61 |
Correct |
12 ms |
4992 KB |
Output is correct |
62 |
Correct |
7 ms |
5140 KB |
Output is correct |
63 |
Correct |
12 ms |
4992 KB |
Output is correct |
64 |
Correct |
10 ms |
5032 KB |
Output is correct |
65 |
Correct |
7 ms |
5136 KB |
Output is correct |
66 |
Correct |
9 ms |
5032 KB |
Output is correct |
67 |
Correct |
7 ms |
5140 KB |
Output is correct |
68 |
Correct |
9 ms |
5036 KB |
Output is correct |
69 |
Correct |
9 ms |
5140 KB |
Output is correct |
70 |
Correct |
10 ms |
4992 KB |
Output is correct |
71 |
Partially correct |
56 ms |
5156 KB |
Partially correct - number of queries: 5111 |
72 |
Correct |
13 ms |
5120 KB |
Output is correct |
73 |
Partially correct |
49 ms |
5152 KB |
Partially correct - number of queries: 5048 |
74 |
Partially correct |
45 ms |
5240 KB |
Partially correct - number of queries: 5074 |
75 |
Correct |
9 ms |
4992 KB |
Output is correct |
76 |
Correct |
31 ms |
5120 KB |
Output is correct |
77 |
Correct |
36 ms |
5240 KB |
Output is correct |
78 |
Correct |
14 ms |
5112 KB |
Output is correct |
79 |
Correct |
20 ms |
4992 KB |
Output is correct |
80 |
Correct |
52 ms |
5112 KB |
Output is correct |
81 |
Correct |
52 ms |
5160 KB |
Output is correct |
82 |
Correct |
37 ms |
5152 KB |
Output is correct |
83 |
Correct |
10 ms |
4992 KB |
Output is correct |
84 |
Correct |
40 ms |
5032 KB |
Output is correct |
85 |
Correct |
49 ms |
5144 KB |
Output is correct |
86 |
Correct |
20 ms |
5136 KB |
Output is correct |
87 |
Correct |
13 ms |
5112 KB |
Output is correct |
88 |
Correct |
40 ms |
5144 KB |
Output is correct |
89 |
Correct |
35 ms |
5248 KB |
Output is correct |
90 |
Correct |
12 ms |
4992 KB |
Output is correct |
91 |
Correct |
30 ms |
5076 KB |
Output is correct |
92 |
Correct |
20 ms |
5248 KB |
Output is correct |
93 |
Correct |
41 ms |
5208 KB |
Output is correct |
94 |
Correct |
47 ms |
5112 KB |
Output is correct |
95 |
Correct |
18 ms |
5128 KB |
Output is correct |
96 |
Correct |
30 ms |
5112 KB |
Output is correct |
97 |
Correct |
29 ms |
5120 KB |
Output is correct |