#862080 (C++23) No.2278 Time Bomb Game 2

• 問題: No.2278 Time Bomb Game 2
• ユーザー: abc23
• 提出日時: 2023-04-22 15:39:02
• 言語: C++23 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 80 ms / 2,000 ms
• コード長: 6,563 bytes
• コンパイル時間: 4,026 ms
• コンパイル使用メモリ: 284,648 KB
• 実行使用メモリ: 103,680 KB
• 最終ジャッジ日時: 2024-04-24 19:14:10
• 合計ジャッジ時間: 7,013 ms
• ジャッジサーバーID （参考情報）: judge4 / judge5

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 5,248 KB
testcase_01	AC	2 ms; 5,376 KB
testcase_02	AC	2 ms; 5,376 KB
testcase_03	AC	2 ms; 5,376 KB
testcase_04	AC	2 ms; 5,376 KB
testcase_05	AC	2 ms; 5,376 KB
testcase_06	AC	3 ms; 5,376 KB
testcase_07	AC	5 ms; 5,376 KB
testcase_08	AC	4 ms; 5,376 KB
testcase_09	AC	5 ms; 5,376 KB
testcase_10	AC	6 ms; 5,376 KB
testcase_11	AC	6 ms; 5,376 KB
testcase_12	AC	6 ms; 5,376 KB
testcase_13	AC	6 ms; 5,376 KB
testcase_14	AC	6 ms; 5,376 KB
testcase_15	AC	6 ms; 5,376 KB
testcase_16	AC	6 ms; 5,376 KB
testcase_17	AC	6 ms; 5,376 KB
testcase_18	AC	6 ms; 5,376 KB
testcase_19	AC	6 ms; 5,376 KB
testcase_20	AC	80 ms; 103,680 KB
testcase_21	AC	6 ms; 5,376 KB
testcase_22	AC	6 ms; 5,376 KB
testcase_23	AC	6 ms; 5,376 KB
testcase_24	AC	6 ms; 5,376 KB
testcase_25	AC	6 ms; 5,376 KB
testcase_26	AC	6 ms; 5,376 KB
testcase_27	AC	6 ms; 5,376 KB
testcase_28	AC	6 ms; 5,376 KB
testcase_29	AC	6 ms; 5,376 KB
testcase_30	AC	6 ms; 5,376 KB
testcase_31	AC	6 ms; 5,376 KB
testcase_32	AC	6 ms; 5,376 KB
testcase_33	AC	6 ms; 5,376 KB
testcase_34	AC	6 ms; 5,376 KB
testcase_35	AC	6 ms; 5,376 KB
testcase_36	AC	5 ms; 5,376 KB
testcase_37	AC	6 ms; 5,376 KB
testcase_38	AC	6 ms; 5,376 KB
testcase_39	AC	6 ms; 5,376 KB
testcase_40	AC	6 ms; 5,376 KB
testcase_41	AC	6 ms; 5,376 KB
testcase_42	AC	6 ms; 5,376 KB
testcase_43	AC	6 ms; 5,376 KB
testcase_44	AC	6 ms; 5,376 KB
testcase_45	AC	6 ms; 5,376 KB
testcase_46	AC	6 ms; 5,376 KB
testcase_47	AC	5 ms; 5,376 KB
testcase_48	AC	6 ms; 5,376 KB
testcase_49	AC	6 ms; 5,376 KB
testcase_50	AC	6 ms; 5,376 KB
testcase_51	AC	6 ms; 5,376 KB
testcase_52	AC	6 ms; 5,376 KB
testcase_53	AC	6 ms; 5,376 KB
testcase_54	AC	6 ms; 5,376 KB
testcase_55	AC	5 ms; 5,376 KB
testcase_56	AC	6 ms; 5,376 KB
testcase_57	AC	6 ms; 5,376 KB
testcase_58	AC	6 ms; 5,376 KB
testcase_59	AC	6 ms; 5,376 KB
testcase_60	AC	6 ms; 5,376 KB
testcase_61	AC	6 ms; 5,376 KB
testcase_62	AC	6 ms; 5,376 KB
testcase_63	AC	6 ms; 5,376 KB
testcase_64	AC	6 ms; 5,376 KB
testcase_65	AC	6 ms; 5,376 KB
testcase_66	AC	6 ms; 5,376 KB
testcase_67	AC	6 ms; 5,376 KB
testcase_68	AC	6 ms; 5,376 KB
testcase_69	AC	6 ms; 5,376 KB
testcase_70	AC	6 ms; 5,376 KB
testcase_71	AC	2 ms; 5,376 KB

ソースコード

#if !__INCLUDE_LEVEL__

#include __FILE__

int n,k,turn;
string s;
V<V<int>> dp;
int dx[]={1,-1};

bool dfs(int now,int t){
	if(dp[t][now]!=-1)return dp[t][now];
	if(t==0){
		if(s[now]=='A'){
			return (dp[t][now]=0);
		}
		else{
			return (dp[t][now]=1);
		}
	}
	if(s[now]=='B'){
		bool res=1;
		rep(i,2){
			if(now+dx[i]<0||n<=now+dx[i])continue;
			if(dfs(now+dx[i],t-1)==0)res=0;
		}
		return (dp[t][now]=res);
	}
	if(s[now]=='A'){
		bool res=0;
		rep(i,2){
			if(now+dx[i]<0||n<=now+dx[i])continue;
			if(dfs(now+dx[i],t-1)==1)res=1;
		}
		return (dp[t][now]=res);
	}
	return 0;
}

void f(){
  random_device rd;
  mt19937 mt(rd());
	n=20;
	turn=30;
	k=mt()%n+1;
	rep(i,n){
		s+=char(mt()%2+'A');
	}
	cout<<n<<" "<<k<<" "<<turn<<endl;
	cout<<s<<endl;
	return ;
}

bool swa=0;
void ab(bool x){
	if(swa)x=1-x;
	if(x)cout<<"Alice"<<endl;
	else cout<<"Bob"<<endl;
	return ;
}


struct Solver {
void solve() {
	cin>>n>>k>>turn;
	cin>>s;
	
	k--;
	if(turn<=100){
		dp=V<V<int>> (turn+1,V<int>(n,-1));
		ab(dfs(k,turn));
		return ;
	}
	if(s[k]=='B'){
		swa=1;
		rep(i,n){
			s[i]=char('B'-s[i]+'A');
		}
	}
	int b=-1;
	rep(i,k,n){
		if(s[i]=='B'){
			b=i;
			break;
		}
	}
	if(b!=-1 && b-k<=turn && ((b-k)%2==turn%2)){
		ab(1);
		return ;
	}
	b=-1;
	for(int i=k;i>=0;i--){
		if(s[i]=='B'){
			b=i;
			break;
		}
	}
	if(b!=-1 && k-b<=turn && ((k-b)%2==turn%2)){
		ab(1);
		return ;
	}
	ab(0);
	return ;
}};

signed main() {
	int ts = 1;
	// scanf("%lld",&ts);
	rep(ti,ts) {
		Solver solver;
		solver.solve();
	}
	return 0;
}

#else

#include <bits/stdc++.h>
// #include <atcoder/all>
// using namespace atcoder;
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;

using namespace std;

#define int ll

using ll=long long;
using ld = long double;
using uint = unsigned;
using ull = unsigned long long;
using P=pair<int,int>;
using TP=tuple<int,int,int>;

const int INF = 1001001001;
const long long INFL = 3e18;
const int MAX = 2e6+5;

#define FOR1(a) for (ll _ = 0; _ < ll(a); ++_)
#define FOR2(i, a) for (ll i = 0; i < ll(a); ++i)
#define FOR3(i, a, b) for (ll i = a; i < ll(b); ++i)
#define FOR4(i, a, b, c) for (ll i = a; i < ll(b); i += (c))
#define FOR1_R(a) for (ll i = (a)-1; i >= ll(0); --i)
#define FOR2_R(i, a) for (ll i = (a)-1; i >= ll(0); --i)
#define FOR3_R(i, a, b) for (ll i = (b)-1; i >= ll(a); --i)
#define FOR4_R(i, a, b, c) for (ll i = (b)-1; i >= ll(a); i -= (c))
#define overload4(a, b, c, d, e, ...) e
#define rep(...) overload4(__VA_ARGS__, FOR4, FOR3, FOR2, FOR1)(__VA_ARGS__)
#define rrep(...) overload4(__VA_ARGS__, FOR4_R, FOR3_R, FOR2_R, FOR1_R)(__VA_ARGS__)
#define fore(i,a) for(auto &i:a)

#define all(x) x.begin(),x.end() 
#define allr(x) x.rbegin(),x.rend() 
#define sz(x) ((int)(x).size())
#define bp(x) (__builtin_popcountll((long long)(x)))
#define elif else if
#define mpa make_pair
#define bit(n) (1LL<<(n))
#define LB(c, x) distance((c).begin(), lower_bound(all(c), (x)))
#define UB(c, x) distance((c).begin(), upper_bound(all(c), (x)))

template<typename T> using V = vector<T>;
template<typename T> using max_heap = priority_queue<T>;
template<typename T> using min_heap = priority_queue<T, vector<T>, greater<>>;
template<typename T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<typename T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
template<typename T>string join(const T&v,const string& d=""){stringstream s;rep(i,sz(v))(i?s<<d:s)<<v[i];return s.str();}
template<typename T>ostream& operator<<(ostream&o,const vector<T>&v){if(sz(v))o<<join(v," ");return o;}
template<typename T1,typename T2>ostream& operator<<(ostream&o,const pair<T1,T2>&v){return o<<v.first<<","<<v.second;}
template<typename Tx, typename Ty>Tx dup(Tx x, Ty y){return (x+y-1)/y;}
template<typename T>ll suma(const vector<T>&a){ll res(0);for(auto&&x:a)res+=x;return res;}
template<typename T>ll suma(const V<V<T>>&a){ll res(0);for(auto&&x:a)res+=suma(x);return res;}
template<typename T>void uni(T& a){sort(all(a));a.erase(unique(all(a)),a.end());}
template<typename T>void prepend(vector<T>&a,const T&x){a.insert(a.begin(),x);}
template<typename T>T vgcd(T m, T n) {return std::gcd(m, n);}
template<typename T, typename... Args>T vgcd(T a, Args... args) {return vgcd(a, vgcd(args...));}

void print(){ putchar(' '); }
void print(bool a){ printf("%d", a); }
// void print(int a){ printf("%d", a); }
void print(unsigned a){ printf("%u", a); }
void print(long a){ printf("%ld", a); }
void print(long long a){ printf("%lld", a); }
void print(unsigned long long a){ printf("%llu", a); }
void print(char a){ printf("%c", a); }
void print(char *a){ printf("%s", a); }
void print(const char *a){ printf("%s", a); }
void print(double a){ printf("%.15f", a); }
void print(long double a){ printf("%.15Lf", a); }
void print(const string& a){ for(auto&& i : a) print(i); }
template<typename T> void print(const complex<T>& a){ if(a.real() >= 0) print('+'); print(a.real()); if(a.imag() >= 0) print('+'); print(a.imag()); print('i'); }
template<typename T> void print(const vector<T>&);
template<typename T, size_t size> void print(const array<T, size>&);
template<typename T, typename L> void print(const pair<T, L>& p);
template<typename T, size_t size> void print(const T (&)[size]);
template<typename T> void print(const vector<T>& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<typename T> void print(const deque<T>& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<typename T, size_t size> void print(const array<T, size>& a){ print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ putchar(' '); print(*i); } }
template<typename T, typename L> void print(const pair<T, L>& p){ print(p.first); putchar(' '); print(p.second); }
template<typename T, size_t size> void print(const T (&a)[size]){ print(a[0]); for(auto i = a; ++i != end(a); ){ putchar(' '); print(*i); } }
template<typename T> void print(const T& a){ cout << a; }
int out(){ putchar('\n'); return 0; }
template<typename T> int out(const T& t){ print(t); putchar('\n'); return 0; }
template<typename Head, typename... Tail> int out(const Head& head, const Tail&... tail){ print(head); putchar(' '); out(tail...); return 0; }


ll binary_search(function<bool(ll)> check, ll ok, ll ng) {
assert(check(ok));
	while (abs(ok - ng) > 1) {
		auto x = (ng + ok) / 2;
		if (check(x))
			ok = x;
		else
			ng = x;
	}
	return ok;
}

#endif