#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
bool asked[200000];
int L[200000], R[200000];
map<pair<int, int>, int> max_idx;
void Ask(int i)
{
if (asked[200000]) return;
asked[i] = true;
vector<int> res = ask(i);
L[i] = res[0], R[i] = res[1];
if (max_idx.find(mp(L[i], R[i])) == max_idx.end())
max_idx[mp(L[i], R[i])] = i;
else
max_idx[mp(L[i], R[i])] = max(max_idx[mp(L[i], R[i])], i);
}
int find_best(int n)
{
memset(asked, false, sizeof(asked));
max_idx = map<pair<int,int>,int>();
int i = 0;
Ask(i);
for (int j = 0; j < n && j < 500; j++)
{
Ask(j);
if (L[j] + R[j] == 0)
return j;
if (L[j] + R[j] > L[i] + R[i])
i = j;
}
int v = i;
while (i < n)
{
for (int j = 18; j >= 0; j--)
if (i + (1 << j) < n)
{
Ask(i + (1 << j));
i = max_idx[mp(L[i], R[i])];
}
while (i < n)
{
Ask(++i);
if (L[i] + R[i] == 0) return i;
if (L[i] + R[i] == L[v] + R[v]) break;
}
}
return n - 1;
}
Compilation message
prize.cpp: In function 'void Ask(int)':
prize.cpp:12:21: warning: array subscript 200000 is above array bounds of 'bool [200000]' [-Warray-bounds]
12 | if (asked[200000]) return;
| ~~~~~~~~~~~~^
prize.cpp:6:6: note: while referencing 'asked'
6 | bool asked[200000];
| ^~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
564 KB |
Output is correct |
| 2 |
Correct |
3 ms |
564 KB |
Output is correct |
| 3 |
Correct |
5 ms |
464 KB |
Output is correct |
| 4 |
Correct |
3 ms |
432 KB |
Output is correct |
| 5 |
Correct |
2 ms |
536 KB |
Output is correct |
| 6 |
Correct |
0 ms |
464 KB |
Output is correct |
| 7 |
Correct |
3 ms |
556 KB |
Output is correct |
| 8 |
Correct |
2 ms |
508 KB |
Output is correct |
| 9 |
Correct |
2 ms |
504 KB |
Output is correct |
| 10 |
Correct |
4 ms |
464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
464 KB |
Output is correct |
| 2 |
Correct |
5 ms |
560 KB |
Output is correct |
| 3 |
Correct |
5 ms |
464 KB |
Output is correct |
| 4 |
Correct |
2 ms |
508 KB |
Output is correct |
| 5 |
Correct |
3 ms |
560 KB |
Output is correct |
| 6 |
Correct |
1 ms |
504 KB |
Output is correct |
| 7 |
Correct |
4 ms |
508 KB |
Output is correct |
| 8 |
Correct |
4 ms |
492 KB |
Output is correct |
| 9 |
Correct |
4 ms |
548 KB |
Output is correct |
| 10 |
Correct |
5 ms |
464 KB |
Output is correct |
| 11 |
Correct |
4 ms |
1104 KB |
Output is correct |
| 12 |
Correct |
5 ms |
552 KB |
Output is correct |
| 13 |
Correct |
5 ms |
1552 KB |
Output is correct |
| 14 |
Correct |
9 ms |
580 KB |
Output is correct |
| 15 |
Correct |
15 ms |
1384 KB |
Output is correct |
| 16 |
Partially correct |
29 ms |
2068 KB |
Partially correct - number of queries: 8021 |
| 17 |
Correct |
2 ms |
512 KB |
Output is correct |
| 18 |
Partially correct |
33 ms |
2068 KB |
Partially correct - number of queries: 9336 |
| 19 |
Correct |
3 ms |
432 KB |
Output is correct |
| 20 |
Correct |
18 ms |
1252 KB |
Output is correct |
| 21 |
Correct |
17 ms |
2124 KB |
Output is correct |
| 22 |
Correct |
12 ms |
1084 KB |
Output is correct |
| 23 |
Correct |
5 ms |
560 KB |
Output is correct |
| 24 |
Correct |
2 ms |
504 KB |
Output is correct |
| 25 |
Partially correct |
20 ms |
2048 KB |
Partially correct - number of queries: 5485 |
| 26 |
Partially correct |
34 ms |
1980 KB |
Partially correct - number of queries: 5404 |
| 27 |
Correct |
2 ms |
684 KB |
Output is correct |
| 28 |
Partially correct |
75 ms |
1956 KB |
Partially correct - number of queries: 8886 |
| 29 |
Partially correct |
39 ms |
1992 KB |
Partially correct - number of queries: 6851 |
| 30 |
Partially correct |
72 ms |
2004 KB |
Partially correct - number of queries: 9260 |
| 31 |
Correct |
3 ms |
464 KB |
Output is correct |
| 32 |
Correct |
8 ms |
1264 KB |
Output is correct |
| 33 |
Correct |
0 ms |
464 KB |
Output is correct |
| 34 |
Correct |
13 ms |
1900 KB |
Output is correct |
| 35 |
Correct |
4 ms |
976 KB |
Output is correct |
| 36 |
Correct |
10 ms |
1668 KB |
Output is correct |
| 37 |
Correct |
6 ms |
808 KB |
Output is correct |
| 38 |
Correct |
5 ms |
496 KB |
Output is correct |
| 39 |
Correct |
17 ms |
2084 KB |
Output is correct |
| 40 |
Partially correct |
53 ms |
1956 KB |
Partially correct - number of queries: 7988 |
| 41 |
Partially correct |
33 ms |
2004 KB |
Partially correct - number of queries: 5774 |
| 42 |
Partially correct |
52 ms |
2072 KB |
Partially correct - number of queries: 5774 |
| 43 |
Partially correct |
20 ms |
2044 KB |
Partially correct - number of queries: 5256 |
| 44 |
Correct |
37 ms |
1960 KB |
Output is correct |
| 45 |
Correct |
31 ms |
1864 KB |
Output is correct |
| 46 |
Correct |
2 ms |
504 KB |
Output is correct |
| 47 |
Correct |
42 ms |
1928 KB |
Output is correct |
| 48 |
Partially correct |
58 ms |
2124 KB |
Partially correct - number of queries: 7031 |
| 49 |
Correct |
8 ms |
968 KB |
Output is correct |
| 50 |
Partially correct |
76 ms |
2168 KB |
Partially correct - number of queries: 9336 |
| 51 |
Correct |
38 ms |
1980 KB |
Output is correct |
| 52 |
Correct |
3 ms |
580 KB |
Output is correct |
| 53 |
Correct |
6 ms |
808 KB |
Output is correct |
| 54 |
Correct |
16 ms |
2020 KB |
Output is correct |
| 55 |
Correct |
4 ms |
424 KB |
Output is correct |
| 56 |
Partially correct |
82 ms |
2060 KB |
Partially correct - number of queries: 9336 |
| 57 |
Partially correct |
61 ms |
1960 KB |
Partially correct - number of queries: 6938 |
| 58 |
Partially correct |
46 ms |
2008 KB |
Partially correct - number of queries: 7050 |
| 59 |
Partially correct |
53 ms |
1992 KB |
Partially correct - number of queries: 5774 |
| 60 |
Partially correct |
30 ms |
2068 KB |
Partially correct - number of queries: 5393 |
| 61 |
Correct |
5 ms |
840 KB |
Output is correct |
| 62 |
Correct |
4 ms |
464 KB |
Output is correct |
| 63 |
Correct |
6 ms |
812 KB |
Output is correct |
| 64 |
Correct |
5 ms |
688 KB |
Output is correct |
| 65 |
Correct |
4 ms |
464 KB |
Output is correct |
| 66 |
Correct |
4 ms |
496 KB |
Output is correct |
| 67 |
Correct |
5 ms |
512 KB |
Output is correct |
| 68 |
Correct |
2 ms |
512 KB |
Output is correct |
| 69 |
Correct |
4 ms |
532 KB |
Output is correct |
| 70 |
Correct |
3 ms |
432 KB |
Output is correct |
| 71 |
Partially correct |
45 ms |
2144 KB |
Partially correct - number of queries: 9314 |
| 72 |
Correct |
11 ms |
1344 KB |
Output is correct |
| 73 |
Partially correct |
72 ms |
1992 KB |
Partially correct - number of queries: 9183 |
| 74 |
Partially correct |
56 ms |
1992 KB |
Partially correct - number of queries: 9240 |
| 75 |
Correct |
5 ms |
848 KB |
Output is correct |
| 76 |
Partially correct |
49 ms |
2016 KB |
Partially correct - number of queries: 7979 |
| 77 |
Partially correct |
76 ms |
2008 KB |
Partially correct - number of queries: 9151 |
| 78 |
Correct |
5 ms |
1404 KB |
Output is correct |
| 79 |
Correct |
39 ms |
1936 KB |
Output is correct |
| 80 |
Partially correct |
33 ms |
2020 KB |
Partially correct - number of queries: 9317 |
| 81 |
Partially correct |
64 ms |
2064 KB |
Partially correct - number of queries: 9323 |
| 82 |
Partially correct |
76 ms |
2080 KB |
Partially correct - number of queries: 9123 |
| 83 |
Correct |
6 ms |
768 KB |
Output is correct |
| 84 |
Partially correct |
53 ms |
1988 KB |
Partially correct - number of queries: 7658 |
| 85 |
Partially correct |
64 ms |
2064 KB |
Partially correct - number of queries: 9321 |
| 86 |
Correct |
5 ms |
520 KB |
Output is correct |
| 87 |
Correct |
4 ms |
464 KB |
Output is correct |
| 88 |
Correct |
5 ms |
512 KB |
Output is correct |
| 89 |
Correct |
3 ms |
464 KB |
Output is correct |
| 90 |
Correct |
5 ms |
516 KB |
Output is correct |
| 91 |
Correct |
5 ms |
464 KB |
Output is correct |
| 92 |
Correct |
2 ms |
560 KB |
Output is correct |
| 93 |
Correct |
6 ms |
1360 KB |
Output is correct |
| 94 |
Correct |
10 ms |
1488 KB |
Output is correct |
| 95 |
Correct |
9 ms |
1360 KB |
Output is correct |
| 96 |
Correct |
6 ms |
1296 KB |
Output is correct |
| 97 |
Correct |
5 ms |
464 KB |
Output is correct |
