#include "mushrooms.h"
#include <cassert>
int count_mushrooms(int n) {
if (n <= 227) {
int count = 1, cur = 0;
for (int i = 1; i < n; ++i) {
if (use_machine({i - 1, i})) {
cur ^= 1;
}
count += !cur;
}
return count;
}
std::vector<int> A = {0}, B;
int count = 1;
int X = 100;
for (int cur = 0, i = 1; i < X; i++) {
cur ^= use_machine({i - 1, i});
if (cur == 0)
++count, A.push_back(cur);
else
B.push_back(cur);
}
int amogus = std::max(A.size(), B.size());
int chosen = A.size() >= B.size() ? 0 : 1;
int l = X;
while (l < n) {
int r = std::min(n, l + amogus - 1) - 1;
std::vector<int> m;
if (0 == chosen) {
m = {A[0]};
for (int j = l, k = 1; j <= r; ++j, ++k) {
m.push_back(j);
assert(k < A.size());
m.push_back(A[k]);
}
count += (r - l + 1) - use_machine(m) / 2;
} else {
m = {B[0]};
for (int j = l, k = 1; j <= r; ++j, ++k) {
m.push_back(j);
assert(k < B.size());
m.push_back(B[k]);
}
count += use_machine(m) / 2;
}
l = r + 1;
}
return count;
}
Compilation message
In file included from /usr/include/c++/10/cassert:44,
from mushrooms.cpp:2:
mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:42:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
42 | assert(k < A.size());
| ~~^~~~~~~~~~
mushrooms.cpp:50:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
50 | assert(k < B.size());
| ~~^~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
340 KB |
Duplicate value 0 in the query array. |
| 7 |
Halted |
0 ms |
0 KB |
- |
