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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#802391 | #9871. Just another Sorting Problem | ucup-team987# | WA | 0ms | 3860kb | C++23 | 4.7kb | 2024-12-07 13:36:48 | 2024-12-07 13:36:52 |
Judging History
answer
#if __INCLUDE_LEVEL__ == 0
#include __BASE_FILE__
void Solve() {
int n;
IN(n);
string s;
IN(s);
atcoder::fenwick_tree<int> f(n);
int parity = 0;
for (int _ : Rep(0, n)) {
int p;
IN(p);
--p;
parity ^= f.sum(p, n) & 1;
f.add(p, 1);
}
parity ^= s == "Bob";
OUT(parity ? "Alice" : "Bob");
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t;
IN(t);
while (t--) {
Solve();
}
}
#elif __INCLUDE_LEVEL__ == 1
#include <bits/stdc++.h>
namespace atcoder {
namespace internal {
template <class T>
using is_signed_int128 =
typename std::conditional<std::is_same<T, __int128_t>::value ||
std::is_same<T, __int128>::value,
std::true_type,
std::false_type>::type;
template <class T>
using is_unsigned_int128 =
typename std::conditional<std::is_same<T, __uint128_t>::value ||
std::is_same<T, unsigned __int128>::value,
std::true_type,
std::false_type>::type;
template <class T>
using make_unsigned_int128 =
typename std::conditional<std::is_same<T, __int128_t>::value,
__uint128_t,
unsigned __int128>;
template <class T>
using is_integral = typename std::conditional<std::is_integral<T>::value ||
is_signed_int128<T>::value ||
is_unsigned_int128<T>::value,
std::true_type,
std::false_type>::type;
template <class T>
using is_signed_int = typename std::conditional<(is_integral<T>::value &&
std::is_signed<T>::value) ||
is_signed_int128<T>::value,
std::true_type,
std::false_type>::type;
template <class T>
using is_unsigned_int =
typename std::conditional<(is_integral<T>::value &&
std::is_unsigned<T>::value) ||
is_unsigned_int128<T>::value,
std::true_type,
std::false_type>::type;
template <class T>
using to_unsigned = typename std::conditional<
is_signed_int128<T>::value,
make_unsigned_int128<T>,
typename std::conditional<std::is_signed<T>::value,
std::make_unsigned<T>,
std::common_type<T>>::type>::type;
template <class T>
using is_signed_int_t = std::enable_if_t<is_signed_int<T>::value>;
template <class T>
using is_unsigned_int_t = std::enable_if_t<is_unsigned_int<T>::value>;
template <class T> using to_unsigned_t = typename to_unsigned<T>::type;
} // namespace internal
} // namespace atcoder
namespace atcoder {
template <class T> struct fenwick_tree {
using U = internal::to_unsigned_t<T>;
public:
fenwick_tree() : _n(0) {}
explicit fenwick_tree(int n) : _n(n), data(n) {}
void add(int p, T x) {
assert(0 <= p && p < _n);
p++;
while (p <= _n) {
data[p - 1] += U(x);
p += p & -p;
}
}
T sum(int l, int r) {
assert(0 <= l && l <= r && r <= _n);
return sum(r) - sum(l);
}
private:
int _n;
std::vector<U> data;
U sum(int r) {
U s = 0;
while (r > 0) {
s += data[r - 1];
r -= r & -r;
}
return s;
}
};
} // namespace atcoder
template <class T> concept Range = std::ranges::range<T> && !std::convertible_to<T, std::string_view>;
template <class T> concept Tuple = std::__is_tuple_like<T>::value && !Range<T>;
namespace std {
istream& operator>>(istream& is, Range auto&& r) {
for (auto&& e : r) is >> e;
return is;
}
istream& operator>>(istream& is, Tuple auto&& t) {
apply([&](auto&... xs) { (is >> ... >> xs); }, t);
return is;
}
ostream& operator<<(ostream& os, Range auto&& r) {
auto sep = "";
for (auto&& e : r) os << exchange(sep, " ") << e;
return os;
}
ostream& operator<<(ostream& os, Tuple auto&& t) {
auto sep = "";
apply([&](auto&... xs) { ((os << exchange(sep, " ") << xs), ...); }, t);
return os;
}
} // namespace std
using namespace std;
#define _ _ [[maybe_unused]]
#define Rep(...) [](int l, int r) { return views::iota(min(l, r), r); }(__VA_ARGS__)
#define IN(...) (cin >> forward_as_tuple(__VA_ARGS__))
#define OUT(...) (cout << forward_as_tuple(__VA_ARGS__) << '\n')
#endif // __INCLUDE_LEVEL__ == 1
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3604kb
input:
3 2 Alice 2 1 3 Bob 1 3 2 10 Bob 1 2 3 4 5 6 7 8 10 9
output:
Alice Bob Bob
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 3860kb
input:
2 2 Alice 2 1 2 Bob 2 1
output:
Alice Bob
result:
wrong answer 2nd lines differ - expected: 'Alice', found: 'Bob'