//#pragma GCC optimize("Ofast,unroll-loops,no-stack-protector")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
#define debug(s) cout<< #s <<" = "<< s <<endl
#define all(v) (v).begin(), (v).end()
#define KeepUnique(v) (v).erase( unique(all(v)), v.end() )
#define MEMSET(a,val) memset(a, val, sizeof a)
#define PB push_back
#define endl '\n'
inline int myrand(int l, int r) {
int ret = rand(); ret <<= 15; ret ^= rand();
if(ret < 0) ret = -ret; ret %= (r-l+1); ret += l;
return ret;
}
template <typename F, typename S>
ostream& operator << (ostream& os, const pair< F, S>& p) {
return os<<"(" <<p.first<<", "<<p.second<<")";
}
const int maxn = 200010;
vector<int> memo[maxn];
int Left(int i) {
if(memo[i].empty()) memo[i] = ask(i);
return memo[i][0];
}
int Right(int i) {
if(memo[i].empty()) memo[i] = ask(i);
return memo[i][1];
}
int Total(int i) {
if(memo[i].empty()) memo[i] = ask(i);
return memo[i][0] + memo[i][1];
}
int find_best(int n) { int debug = 0;
if(!debug) if(n <= 5000) { // fix
for(int i = 0; i < n; i++) {
if(Total(i) == 0) {
return i;
}
}
}
int mx_tot = 0;
for(int i = 0; i < (debug ? 1 : 500); i++) { // fix
mx_tot = max(mx_tot, Total(i));
}
int now = 0;
while(true) {
int ret;
if(Total(now) < mx_tot) {
ret = now;
} else {
int lo = now, hi = n - 1;
while(lo <= hi) {
int mid = lo + hi >> 1;
bool IsGold = ((Total(mid) < mx_tot) or (Left(mid) - Left(now) > 0));
if(IsGold) {
ret = mid;
hi = mid - 1;
} else {
lo = mid + 1;
}
}
}
assert(ret != -1);
if(Total(ret) == 0) return ret;
now = ret + 1;
}
assert(false);
return 0;
}
Compilation message
prize.cpp: In function 'int myrand(int, int)':
prize.cpp:17:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if(ret < 0) ret = -ret; ret %= (r-l+1); ret += l;
^~
prize.cpp:17:26: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
if(ret < 0) ret = -ret; ret %= (r-l+1); ret += l;
^~~
prize.cpp: In function 'int find_best(int)':
prize.cpp:63:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = lo + hi >> 1;
~~~^~~~
prize.cpp:75:7: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
now = ret + 1;
~~~~^~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
4984 KB |
Output is correct |
| 2 |
Correct |
9 ms |
5044 KB |
Output is correct |
| 3 |
Correct |
11 ms |
5208 KB |
Output is correct |
| 4 |
Correct |
10 ms |
5208 KB |
Output is correct |
| 5 |
Correct |
10 ms |
5208 KB |
Output is correct |
| 6 |
Correct |
8 ms |
5208 KB |
Output is correct |
| 7 |
Correct |
13 ms |
5208 KB |
Output is correct |
| 8 |
Correct |
11 ms |
5208 KB |
Output is correct |
| 9 |
Correct |
12 ms |
5208 KB |
Output is correct |
| 10 |
Correct |
9 ms |
5332 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
5332 KB |
Output is correct |
| 2 |
Correct |
11 ms |
5332 KB |
Output is correct |
| 3 |
Correct |
10 ms |
5332 KB |
Output is correct |
| 4 |
Correct |
12 ms |
5332 KB |
Output is correct |
| 5 |
Correct |
10 ms |
5332 KB |
Output is correct |
| 6 |
Correct |
9 ms |
5332 KB |
Output is correct |
| 7 |
Correct |
9 ms |
5332 KB |
Output is correct |
| 8 |
Correct |
12 ms |
5332 KB |
Output is correct |
| 9 |
Correct |
9 ms |
5332 KB |
Output is correct |
| 10 |
Correct |
9 ms |
5332 KB |
Output is correct |
| 11 |
Correct |
14 ms |
5332 KB |
Output is correct |
| 12 |
Correct |
10 ms |
5332 KB |
Output is correct |
| 13 |
Correct |
15 ms |
5332 KB |
Output is correct |
| 14 |
Correct |
12 ms |
5332 KB |
Output is correct |
| 15 |
Correct |
17 ms |
5332 KB |
Output is correct |
| 16 |
Partially correct |
55 ms |
5480 KB |
Partially correct - number of queries: 7218 |
| 17 |
Correct |
10 ms |
5480 KB |
Output is correct |
| 18 |
Partially correct |
74 ms |
5480 KB |
Partially correct - number of queries: 8378 |
| 19 |
Correct |
11 ms |
5480 KB |
Output is correct |
| 20 |
Correct |
19 ms |
5480 KB |
Output is correct |
| 21 |
Correct |
36 ms |
5480 KB |
Output is correct |
| 22 |
Correct |
14 ms |
5480 KB |
Output is correct |
| 23 |
Correct |
10 ms |
5480 KB |
Output is correct |
| 24 |
Correct |
11 ms |
5480 KB |
Output is correct |
| 25 |
Correct |
43 ms |
5480 KB |
Output is correct |
| 26 |
Correct |
39 ms |
5480 KB |
Output is correct |
| 27 |
Correct |
10 ms |
5480 KB |
Output is correct |
| 28 |
Partially correct |
43 ms |
5496 KB |
Partially correct - number of queries: 7903 |
| 29 |
Partially correct |
60 ms |
5496 KB |
Partially correct - number of queries: 6143 |
| 30 |
Partially correct |
84 ms |
5496 KB |
Partially correct - number of queries: 8307 |
| 31 |
Correct |
10 ms |
5496 KB |
Output is correct |
| 32 |
Correct |
14 ms |
5496 KB |
Output is correct |
| 33 |
Correct |
6 ms |
5496 KB |
Output is correct |
| 34 |
Correct |
39 ms |
5496 KB |
Output is correct |
| 35 |
Correct |
9 ms |
5496 KB |
Output is correct |
| 36 |
Correct |
29 ms |
5496 KB |
Output is correct |
| 37 |
Correct |
9 ms |
5496 KB |
Output is correct |
| 38 |
Correct |
12 ms |
5496 KB |
Output is correct |
| 39 |
Correct |
55 ms |
5496 KB |
Output is correct |
| 40 |
Partially correct |
75 ms |
5520 KB |
Partially correct - number of queries: 7178 |
| 41 |
Partially correct |
54 ms |
5520 KB |
Partially correct - number of queries: 5238 |
| 42 |
Partially correct |
58 ms |
5520 KB |
Partially correct - number of queries: 5238 |
| 43 |
Correct |
50 ms |
5520 KB |
Output is correct |
| 44 |
Correct |
30 ms |
5520 KB |
Output is correct |
| 45 |
Correct |
39 ms |
5520 KB |
Output is correct |
| 46 |
Correct |
10 ms |
5520 KB |
Output is correct |
| 47 |
Correct |
47 ms |
5520 KB |
Output is correct |
| 48 |
Partially correct |
55 ms |
5520 KB |
Partially correct - number of queries: 6334 |
| 49 |
Correct |
13 ms |
5520 KB |
Output is correct |
| 50 |
Partially correct |
56 ms |
5520 KB |
Partially correct - number of queries: 8379 |
| 51 |
Correct |
44 ms |
5520 KB |
Output is correct |
| 52 |
Correct |
10 ms |
5520 KB |
Output is correct |
| 53 |
Correct |
9 ms |
5520 KB |
Output is correct |
| 54 |
Correct |
32 ms |
5520 KB |
Output is correct |
| 55 |
Correct |
9 ms |
5520 KB |
Output is correct |
| 56 |
Partially correct |
73 ms |
5520 KB |
Partially correct - number of queries: 8374 |
| 57 |
Partially correct |
78 ms |
5520 KB |
Partially correct - number of queries: 6238 |
| 58 |
Partially correct |
56 ms |
5520 KB |
Partially correct - number of queries: 6320 |
| 59 |
Partially correct |
41 ms |
5520 KB |
Partially correct - number of queries: 5235 |
| 60 |
Correct |
66 ms |
5520 KB |
Output is correct |
| 61 |
Correct |
12 ms |
5520 KB |
Output is correct |
| 62 |
Correct |
8 ms |
5520 KB |
Output is correct |
| 63 |
Correct |
8 ms |
5520 KB |
Output is correct |
| 64 |
Correct |
8 ms |
5520 KB |
Output is correct |
| 65 |
Correct |
10 ms |
5520 KB |
Output is correct |
| 66 |
Correct |
15 ms |
5520 KB |
Output is correct |
| 67 |
Correct |
8 ms |
5520 KB |
Output is correct |
| 68 |
Correct |
13 ms |
5520 KB |
Output is correct |
| 69 |
Correct |
20 ms |
5520 KB |
Output is correct |
| 70 |
Correct |
11 ms |
5520 KB |
Output is correct |
| 71 |
Partially correct |
47 ms |
5520 KB |
Partially correct - number of queries: 8270 |
| 72 |
Correct |
13 ms |
5520 KB |
Output is correct |
| 73 |
Partially correct |
82 ms |
5520 KB |
Partially correct - number of queries: 8159 |
| 74 |
Partially correct |
55 ms |
5588 KB |
Partially correct - number of queries: 8219 |
| 75 |
Correct |
10 ms |
5588 KB |
Output is correct |
| 76 |
Partially correct |
67 ms |
5588 KB |
Partially correct - number of queries: 7113 |
| 77 |
Partially correct |
55 ms |
5588 KB |
Partially correct - number of queries: 7051 |
| 78 |
Correct |
12 ms |
5588 KB |
Output is correct |
| 79 |
Correct |
42 ms |
5588 KB |
Output is correct |
| 80 |
Partially correct |
84 ms |
5588 KB |
Partially correct - number of queries: 8409 |
| 81 |
Partially correct |
64 ms |
5588 KB |
Partially correct - number of queries: 8420 |
| 82 |
Partially correct |
94 ms |
5588 KB |
Partially correct - number of queries: 8353 |
| 83 |
Correct |
13 ms |
5588 KB |
Output is correct |
| 84 |
Partially correct |
34 ms |
5588 KB |
Partially correct - number of queries: 6970 |
| 85 |
Partially correct |
68 ms |
5588 KB |
Partially correct - number of queries: 8433 |
| 86 |
Correct |
8 ms |
5588 KB |
Output is correct |
| 87 |
Correct |
11 ms |
5588 KB |
Output is correct |
| 88 |
Correct |
10 ms |
5588 KB |
Output is correct |
| 89 |
Correct |
10 ms |
5588 KB |
Output is correct |
| 90 |
Correct |
9 ms |
5588 KB |
Output is correct |
| 91 |
Correct |
9 ms |
5588 KB |
Output is correct |
| 92 |
Correct |
10 ms |
5588 KB |
Output is correct |
| 93 |
Correct |
12 ms |
5588 KB |
Output is correct |
| 94 |
Correct |
12 ms |
5588 KB |
Output is correct |
| 95 |
Correct |
16 ms |
5588 KB |
Output is correct |
| 96 |
Correct |
12 ms |
5588 KB |
Output is correct |
| 97 |
Correct |
12 ms |
5588 KB |
Output is correct |
