#include "prize.h"
#include <map>
#include <iostream>
using namespace std;
map<int, pair<int, int>> resmp;
pair<int, int> myask(int i) {
if (resmp.find(i) == resmp.end()) {
auto r = ask(i);
resmp[i] = {r[0], r[1]};
}
return resmp[i];
}
int gogo(int fr, int to, int lc, int rc, int mxc) {
if (lc + rc == mxc) {
return -1;
}
int mid = (fr + to) / 2;
int lto = mid, rfr = mid + 1;
int n = to - fr;
for (int i = 0; i < n; i++) {
if (i & 1) {
mid -= i;
} else {
mid += i;
}
lto = min(lto, mid);
rfr = max(rfr, mid + 1);
auto res = myask(mid);
int c = res.first + res.second;
if (c == 0) {
return mid;
} else if (c == mxc) {
int lrc, rlc;
if (mid == lto) {
lrc = res.second;
rlc = res.first + i;
} else {
lrc = res.second + i;
rlc = res.first;
}
int lrt = gogo(fr, lto, lc, lrc, mxc);
if (lrt != -1) {
return lrt;
} else {
return gogo(rfr, to, rlc, rc, mxc);
}
}
}
return -1;
}
int find_best(int n) {
resmp.clear();
int mxc = 0;
int lc = 0;
for(int i = 0; i < n && i < 500; i++) {
auto res = myask(i);
lc = res.first;
if(res.first + res.second == 0)
return i;
if (res.first + res.second > mxc) {
mxc = res.first + res.second;
}
}
return gogo(0, n, 0, 0, mxc);
}
Compilation message
prize.cpp: In function 'int find_best(int)':
prize.cpp:58:9: warning: variable 'lc' set but not used [-Wunused-but-set-variable]
int lc = 0;
^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
2024 KB |
Output is correct |
2 |
Correct |
2 ms |
2024 KB |
Output is correct |
3 |
Correct |
2 ms |
2024 KB |
Output is correct |
4 |
Correct |
5 ms |
2024 KB |
Output is correct |
5 |
Correct |
12 ms |
2024 KB |
Output is correct |
6 |
Correct |
0 ms |
2024 KB |
Output is correct |
7 |
Correct |
3 ms |
2024 KB |
Output is correct |
8 |
Correct |
2 ms |
2024 KB |
Output is correct |
9 |
Correct |
4 ms |
2024 KB |
Output is correct |
10 |
Correct |
0 ms |
2024 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2024 KB |
Output is correct |
2 |
Correct |
8 ms |
2024 KB |
Output is correct |
3 |
Correct |
9 ms |
2024 KB |
Output is correct |
4 |
Correct |
2 ms |
2024 KB |
Output is correct |
5 |
Correct |
2 ms |
2024 KB |
Output is correct |
6 |
Correct |
0 ms |
2024 KB |
Output is correct |
7 |
Correct |
2 ms |
2024 KB |
Output is correct |
8 |
Correct |
1 ms |
2024 KB |
Output is correct |
9 |
Correct |
4 ms |
2024 KB |
Output is correct |
10 |
Correct |
4 ms |
2024 KB |
Output is correct |
11 |
Correct |
5 ms |
2024 KB |
Output is correct |
12 |
Correct |
8 ms |
2024 KB |
Output is correct |
13 |
Correct |
9 ms |
2156 KB |
Output is correct |
14 |
Correct |
7 ms |
2024 KB |
Output is correct |
15 |
Correct |
6 ms |
2156 KB |
Output is correct |
16 |
Correct |
13 ms |
2288 KB |
Output is correct |
17 |
Correct |
0 ms |
2024 KB |
Output is correct |
18 |
Correct |
25 ms |
2288 KB |
Output is correct |
19 |
Correct |
12 ms |
2024 KB |
Output is correct |
20 |
Correct |
3 ms |
2156 KB |
Output is correct |
21 |
Correct |
4 ms |
2156 KB |
Output is correct |
22 |
Correct |
5 ms |
2156 KB |
Output is correct |
23 |
Correct |
0 ms |
2024 KB |
Output is correct |
24 |
Correct |
3 ms |
2024 KB |
Output is correct |
25 |
Correct |
10 ms |
2156 KB |
Output is correct |
26 |
Correct |
15 ms |
2156 KB |
Output is correct |
27 |
Correct |
2 ms |
2024 KB |
Output is correct |
28 |
Correct |
7 ms |
2288 KB |
Output is correct |
29 |
Correct |
15 ms |
2288 KB |
Output is correct |
30 |
Correct |
21 ms |
2288 KB |
Output is correct |
31 |
Correct |
0 ms |
2024 KB |
Output is correct |
32 |
Correct |
10 ms |
2156 KB |
Output is correct |
33 |
Correct |
0 ms |
2024 KB |
Output is correct |
34 |
Correct |
6 ms |
2156 KB |
Output is correct |
35 |
Correct |
0 ms |
2024 KB |
Output is correct |
36 |
Correct |
10 ms |
2156 KB |
Output is correct |
37 |
Correct |
0 ms |
2024 KB |
Output is correct |
38 |
Correct |
4 ms |
2024 KB |
Output is correct |
39 |
Correct |
0 ms |
2156 KB |
Output is correct |
40 |
Correct |
6 ms |
2288 KB |
Output is correct |
41 |
Correct |
1 ms |
2288 KB |
Output is correct |
42 |
Correct |
13 ms |
2288 KB |
Output is correct |
43 |
Correct |
5 ms |
2156 KB |
Output is correct |
44 |
Correct |
4 ms |
2156 KB |
Output is correct |
45 |
Correct |
6 ms |
2156 KB |
Output is correct |
46 |
Correct |
5 ms |
2024 KB |
Output is correct |
47 |
Correct |
10 ms |
2156 KB |
Output is correct |
48 |
Correct |
21 ms |
2288 KB |
Output is correct |
49 |
Correct |
0 ms |
2156 KB |
Output is correct |
50 |
Correct |
13 ms |
2288 KB |
Output is correct |
51 |
Correct |
7 ms |
2156 KB |
Output is correct |
52 |
Correct |
2 ms |
2024 KB |
Output is correct |
53 |
Correct |
2 ms |
2024 KB |
Output is correct |
54 |
Correct |
6 ms |
2156 KB |
Output is correct |
55 |
Correct |
2 ms |
2024 KB |
Output is correct |
56 |
Correct |
7 ms |
2288 KB |
Output is correct |
57 |
Correct |
8 ms |
2288 KB |
Output is correct |
58 |
Correct |
19 ms |
2288 KB |
Output is correct |
59 |
Correct |
10 ms |
2288 KB |
Output is correct |
60 |
Correct |
6 ms |
2156 KB |
Output is correct |
61 |
Correct |
2 ms |
2024 KB |
Output is correct |
62 |
Correct |
4 ms |
2024 KB |
Output is correct |
63 |
Correct |
3 ms |
2024 KB |
Output is correct |
64 |
Correct |
3 ms |
2024 KB |
Output is correct |
65 |
Correct |
14 ms |
2024 KB |
Output is correct |
66 |
Correct |
2 ms |
2156 KB |
Output is correct |
67 |
Correct |
5 ms |
2024 KB |
Output is correct |
68 |
Correct |
0 ms |
2024 KB |
Output is correct |
69 |
Correct |
0 ms |
2156 KB |
Output is correct |
70 |
Correct |
15 ms |
2024 KB |
Output is correct |
71 |
Partially correct |
5 ms |
2420 KB |
Partially correct - number of queries: 5258 |
72 |
Correct |
3 ms |
2156 KB |
Output is correct |
73 |
Partially correct |
29 ms |
2420 KB |
Partially correct - number of queries: 5195 |
74 |
Partially correct |
13 ms |
2420 KB |
Partially correct - number of queries: 5222 |
75 |
Correct |
0 ms |
2024 KB |
Output is correct |
76 |
Correct |
16 ms |
2288 KB |
Output is correct |
77 |
Correct |
4 ms |
2288 KB |
Output is correct |
78 |
Correct |
18 ms |
2156 KB |
Output is correct |
79 |
Correct |
12 ms |
2156 KB |
Output is correct |
80 |
Correct |
7 ms |
2288 KB |
Output is correct |
81 |
Correct |
8 ms |
2288 KB |
Output is correct |
82 |
Correct |
13 ms |
2288 KB |
Output is correct |
83 |
Correct |
0 ms |
2024 KB |
Output is correct |
84 |
Correct |
17 ms |
2288 KB |
Output is correct |
85 |
Correct |
27 ms |
2288 KB |
Output is correct |
86 |
Correct |
2 ms |
2024 KB |
Output is correct |
87 |
Correct |
4 ms |
2024 KB |
Output is correct |
88 |
Correct |
6 ms |
2024 KB |
Output is correct |
89 |
Correct |
1 ms |
2024 KB |
Output is correct |
90 |
Correct |
0 ms |
2024 KB |
Output is correct |
91 |
Correct |
1 ms |
2024 KB |
Output is correct |
92 |
Correct |
2 ms |
2024 KB |
Output is correct |
93 |
Correct |
3 ms |
2156 KB |
Output is correct |
94 |
Correct |
3 ms |
2156 KB |
Output is correct |
95 |
Correct |
16 ms |
2156 KB |
Output is correct |
96 |
Correct |
4 ms |
2024 KB |
Output is correct |
97 |
Correct |
0 ms |
2024 KB |
Output is correct |