結果
| 問題 |
No.2278 Time Bomb Game 2
|
| コンテスト | |
| ユーザー |
rniya
|
| 提出日時 | 2023-04-21 22:30:47 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
(最新)
AC
(最初)
|
| 実行時間 | - |
| コード長 | 3,700 bytes |
| コンパイル時間 | 6,741 ms |
| コンパイル使用メモリ | 200,068 KB |
| 最終ジャッジ日時 | 2025-02-12 12:07:01 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 69 WA * 1 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define ALL(x) (x).begin(), (x).end()
#ifdef LOCAL
#include <debug.hpp>
#else
#define debug(...) void(0)
#endif
template <typename T> istream& operator>>(istream& is, vector<T>& v) {
for (T& x : v) is >> x;
return is;
}
template <typename T> ostream& operator<<(ostream& os, const vector<T>& v) {
for (size_t i = 0; i < v.size(); i++) {
os << v[i] << (i + 1 == v.size() ? "" : " ");
}
return os;
}
template <typename T> T gcd(T x, T y) { return y != 0 ? gcd(y, x % y) : x; }
template <typename T> T lcm(T x, T y) { return x / gcd(x, y) * y; }
int topbit(signed t) { return t == 0 ? -1 : 31 - __builtin_clz(t); }
int topbit(long long t) { return t == 0 ? -1 : 63 - __builtin_clzll(t); }
int botbit(signed a) { return a == 0 ? 32 : __builtin_ctz(a); }
int botbit(long long a) { return a == 0 ? 64 : __builtin_ctzll(a); }
int popcount(signed t) { return __builtin_popcount(t); }
int popcount(long long t) { return __builtin_popcountll(t); }
bool ispow2(int i) { return i && (i & -i) == i; }
long long MSK(int n) { return (1LL << n) - 1; }
template <class T> T ceil(T x, T y) {
assert(y >= 1);
return (x > 0 ? (x + y - 1) / y : x / y);
}
template <class T> T floor(T x, T y) {
assert(y >= 1);
return (x > 0 ? x / y : (x - y + 1) / y);
}
template <class T1, class T2> inline bool chmin(T1& a, T2 b) {
if (a > b) {
a = b;
return true;
}
return false;
}
template <class T1, class T2> inline bool chmax(T1& a, T2 b) {
if (a < b) {
a = b;
return true;
}
return false;
}
template <typename T> void mkuni(vector<T>& v) {
sort(v.begin(), v.end());
v.erase(unique(v.begin(), v.end()), v.end());
}
template <typename T> int lwb(const vector<T>& v, const T& x) { return lower_bound(v.begin(), v.end(), x) - v.begin(); }
const int INF = (1 << 30) - 1;
const long long IINF = (1LL << 60) - 1;
const int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
const int MOD = 998244353;
// const int MOD = 1000000007;
int main() {
cin.tie(0);
ios::sync_with_stdio(false);
int N, K, T;
cin >> N >> K >> T;
string S;
cin >> S;
vector<int> d;
char c = S[--K];
for (int i = K - 1; i >= 0; i--) {
if (S[i] != c) {
d.emplace_back(K - i);
break;
}
}
for (int i = K + 1; i < N; i++) {
if (S[i] != c) {
d.emplace_back(i - K);
break;
}
}
while (d.size() < 2) d.emplace_back(INF);
sort(d.begin(), d.end());
int cur = c - 'A', win;
if (T < d[0])
win = cur ^ 1;
else if (1 < d[0]) {
if ((T & 1) == (d[0] & 1))
win = cur;
else if (d[1] <= T and (T & 1) == (d[1] & 1))
win = cur;
else
win = cur ^ 1;
} else {
if (d[1] == 1) {
if (not(T & 1))
win = cur ^ 1;
else {
int L = 0, R = 0;
for (int i = K - 1; i >= 0 and S[i] != c; i--) L++;
for (int i = K + 1; i < N and S[i] != c; i++) R++;
if (T == 1)
win = cur;
else if ((L & 1) or (R & 1))
win = cur;
else
win = cur ^ 1;
}
} else if (T < d[1]) {
if (T & 1)
win = cur;
else
win = cur ^ 1;
} else {
if ((T & 1) or (T & 1) == (d[1] & 1))
win = cur;
else
win = cur ^ 1;
}
}
cout << (win == 0 ? "Alice" : "Bob") << '\n';
return 0;
}
rniya