#698640 (C++11) No.1677 mæx

提出ソース

結果

問題	No.1677 mæx
ユーザー	akakimidori
提出日時	2021-09-10 23:35:28
言語	C++11 (gcc 11.4.0)
結果	AC
実行時間	14 ms / 2,000 ms
コード長	7,474 bytes
コンパイル時間	1,315 ms
コンパイル使用メモリ	105,092 KB
実行使用メモリ	13,820 KB
最終ジャッジ日時	2024-06-12 05:01:29
合計ジャッジ時間	2,338 ms
ジャッジサーバーID （参考情報）	judge2 / judge4

このコードへのチャレンジ
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テストケース

テストケース表示

入力	結果	実行時間実行使用メモリ
testcase_00	AC	3 ms 7,908 KB
testcase_01	AC	3 ms 7,872 KB
testcase_02	AC	4 ms 7,888 KB
testcase_03	AC	4 ms 8,036 KB
testcase_04	AC	13 ms 12,900 KB
testcase_05	AC	13 ms 13,168 KB
testcase_06	AC	13 ms 13,028 KB
testcase_07	AC	13 ms 13,152 KB
testcase_08	AC	13 ms 13,036 KB
testcase_09	AC	12 ms 13,028 KB
testcase_10	AC	13 ms 12,896 KB
testcase_11	AC	13 ms 13,048 KB
testcase_12	AC	12 ms 12,920 KB
testcase_13	AC	14 ms 12,912 KB
testcase_14	AC	12 ms 13,040 KB
testcase_15	AC	12 ms 13,024 KB
testcase_16	AC	11 ms 12,896 KB
testcase_17	AC	11 ms 13,168 KB
testcase_18	AC	13 ms 13,036 KB
testcase_19	AC	4 ms 8,064 KB
testcase_20	AC	3 ms 8,064 KB
testcase_21	AC	13 ms 13,820 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cassert>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <bitset>
#include <string>
#include <algorithm>
#include <utility>
#include <complex>
#include <unordered_set>
#include <unordered_map>
#define rep(x, s, t) for(llint x = (s); (x) <= (t); (x)++)
#define per(x, s, t) for(llint x = (s); (x) >= (t); (x)--)
#define reps(x, s) for(llint x = 0; (x) < (llint)(s).size(); (x)++)
#define chmin(x, y) (x) = min((x), (y))
#define chmax(x, y) (x) = max((x), (y))
#define sz(x) ((ll)(x).size())
#define ceil(x, y) (((x)+(y)-1) / (y))
#define all(x) (x).begin(),(x).end()
#define outl(...) dump_func(__VA_ARGS__)
#define outf(x) cout << fixed << setprecision(16) << (x) << endl
#define inf 1e18

using namespace std;

typedef long long llint;
typedef long long ll;
typedef pair<ll, ll> P;

struct edge{
	ll to, cost;
	edge(){}
	edge(ll a, ll b){ to = a, cost = b;}
};
const ll dx[] = {1, 0, -1, 0}, dy[] = {0, -1, 0, 1};

//const ll mod = 1000000007;
const ll mod = 998244353;

struct mint{
	ll x = 0;
	mint(ll y = 0){x = y; if(x < 0 || x >= mod) x = (x%mod+mod)%mod;}
	mint(const mint &ope) {x = ope.x;}

	mint operator-(){return mint(-x);}
	mint operator+(const mint &ope){return mint(x) += ope;}
	mint operator-(const mint &ope){return mint(x) -= ope;}
	mint operator*(const mint &ope){return mint(x) *= ope;}
	mint operator/(const mint &ope){return mint(x) /= ope;}
	mint& operator+=(const mint &ope){
		x += ope.x;
		if(x >= mod) x -= mod;
		return *this;
	}
	mint& operator-=(const mint &ope){
		x += mod - ope.x;
		if(x >= mod) x -= mod;
		return *this;
	}
	mint& operator*=(const mint &ope){
		x *= ope.x, x %= mod;
		return *this;
	}
	mint& operator/=(const mint &ope){
		ll n = mod-2; mint mul = ope;
		while(n){
			if(n & 1) *this *= mul;
			mul *= mul;
			n >>= 1;
		}
		return *this;
	}
	mint inverse(){return mint(1) / *this;}
	bool operator ==(const mint &ope){return x == ope.x;}
	bool operator !=(const mint &ope){return x != ope.x;}
};
mint modpow(mint a, ll n){
	if(n == 0) return mint(1);
	if(n % 2) return a * modpow(a, n-1);
	else return modpow(a*a, n/2);
}
istream& operator >>(istream &is, mint &ope){
	ll t; is >> t, ope.x = t;
	return is;
}
ostream& operator <<(ostream &os, mint &ope){return os << ope.x;}
ostream& operator <<(ostream &os, const mint &ope){return os << ope.x;}

vector<mint> fact, fact_inv;
void make_fact(int n){
	fact.resize(n+1), fact_inv.resize(n+1);
	fact[0] = mint(1); rep(i, 1, n) fact[i] = fact[i-1] * mint(i);
	fact_inv[n] = fact[n].inverse(); per(i, n-1, 0) fact_inv[i] = fact_inv[i+1] * mint(i+1);
}
mint comb(ll n, ll k){ if(n < 0 || k < 0 || n < k) return mint(0); return fact[n] * fact_inv[k] * fact_inv[n-k];}
mint perm(ll n, ll k){ return comb(n, k) * fact[k]; }

vector<int> prime;
void make_prime(int n){
	prime.resize(n+1);
	rep(i, 2, n){
		if(prime[i]) continue;
		for(int j = i; j <= n; j+=i) prime[j] = i;
	}
}

bool exceed(ll x, ll y, ll m){return x >= m / y + 1;}
void mark(){ cout << "*" << endl; }
void yes(){ cout << "YES" << endl; }
void no(){ cout << "NO" << endl; }
ll sgn(ll x){ if(x > 0) return 1; if(x < 0) return -1; return 0;}
ll gcd(ll a, ll b){if(b == 0) return a; return gcd(b, a%b);}
ll lcm(ll a, ll b){return a/gcd(a, b)*b;}
ll digitnum(ll x, ll b = 10){ll ret = 0; for(; x; x /= b) ret++; return ret;}
ll digitsum(ll x, ll b = 10){ll ret = 0; for(; x; x /= b) ret += x % b; return ret;}
string lltos(ll x){string ret; for(;x;x/=10) ret += x % 10 + '0'; reverse(ret.begin(), ret.end()); return ret;}
ll stoll(string &s){ll ret = 0; for(auto c : s) ret *= 10, ret += c - '0'; return ret;}
template<typename T>
void uniq(T &vec){ sort(vec.begin(), vec.end()); vec.erase(unique(vec.begin(), vec.end()), vec.end());}

template<class S, class T> pair<S, T>& operator+=(pair<S,T> &s, const pair<S,T> &t){
	s.first += t.first, s.second += t.second;
	return s;
}
template<class S, class T> pair<S, T>& operator-=(pair<S,T> &s, const pair<S,T> &t){
	s.first -= t.first, s.second -= t.second;
	return s;
}
template<class S, class T> pair<S, T> operator+(const pair<S,T> &s, const pair<S,T> &t){
	return pair<S,T>(s.first+t.first, s.second+t.second);
}
template<class S, class T> pair<S, T> operator-(const pair<S,T> &s, const pair<S,T> &t){
	return pair<S,T>(s.first-t.first, s.second-t.second);
}
template<typename T>
ostream& operator << (ostream& os, vector<T>& vec) {
	for(int i = 0; i < vec.size(); i++) os << vec[i] << (i + 1 == vec.size() ? "" : " ");
	return os;
}
template<typename T>
ostream& operator << (ostream& os, deque<T>& deq) {
	for(int i = 0; i < deq.size(); i++) os << deq[i] << (i + 1 == deq.size() ? "" : " ");
	return os;
}
template<typename T, typename U>
ostream& operator << (ostream& os, pair<T, U>& pair_var) {
	os << "(" << pair_var.first << ", " << pair_var.second << ")";
	return os;
}
template<typename T, typename U>
ostream& operator << (ostream& os, const pair<T, U>& pair_var) {
	os << "(" << pair_var.first << ", " << pair_var.second << ")";
	return os;
}
template<typename T, typename U>
ostream& operator << (ostream& os, map<T, U>& map_var) {
	for(typename map<T, U>::iterator itr = map_var.begin(); itr != map_var.end(); itr++) {
		os << "(" << itr->first << ", " << itr->second << ")";
		itr++; if(itr != map_var.end()) os << ","; itr--;
	}
	return os;
}
template<typename T>
ostream& operator << (ostream& os, set<T>& set_var) {
	for(typename set<T>::iterator itr = set_var.begin(); itr != set_var.end(); itr++) {
		os << *itr; ++itr; if(itr != set_var.end()) os << " "; itr--;
	}
	return os;
}
template<typename T>
ostream& operator << (ostream& os, multiset<T>& set_var) {
	for(typename multiset<T>::iterator itr = set_var.begin(); itr != set_var.end(); itr++) {
		os << *itr; ++itr; if(itr != set_var.end()) os << " "; itr--;
	}
	return os;
}
template<typename T>
void outa(T a[], ll s, ll t){for(ll i = s; i <= t; i++){ cout << a[i]; if(i < t) cout << " ";}cout << endl;}
void dump_func(){cout << endl;}
template <class Head, class... Tail>
void dump_func(Head &&head, Tail &&... tail) {
	cout << head;
	if(sizeof...(Tail) > 0) cout << " ";
	dump_func(std::move(tail)...);
}

struct Node{
	string str;
	ll l, r;
	Node(){str = "", l = r = -1;}
};

string s;
ll k;
vector<Node> vec;

ll parse(ll &p)
{
	vec.push_back(Node());
	ll v = sz(vec)-1;
	if(s[p] == '0' || s[p] == '1' || s[p] == '2' || s[p] == '?'){
		vec[v].str = s[p];
		p++;
		return v;
	}
	if(s[p] == 'm'){
		p++;
		if(s[p] == 'a') vec[v].str = "max";
		if(s[p] == 'e') vec[v].str = "mex";
		if(s[p] == '?') vec[v].str = "m?x";
		p += 3;

        ll tmp = parse(p);
		vec[v].l = tmp;
		p++;
		tmp = parse(p);
		vec[v].r = tmp;
		p++;
		return v;
	}
	return 0;
}

ll mex(ll a, ll b)
{
	if(min(a, b) >= 1) return 0;
	if((a+b) % 2) return 2;
	else return 1;
}

mint dp[200005][3];

void dfs(int v)
{
	if(sz(vec[v].str) == 1){
		rep(i, 0, 2) if(vec[v].str[0] == '?' || vec[v].str[0] == '0' + i) dp[v][i] = 1;
		return;
	}
	ll l = vec[v].l, r = vec[v].r;
	dfs(l), dfs(r);
	if(vec[v].str != "mex"){
		rep(i, 0, 2) rep(j, 0, 2) dp[v][max(i, j)] += dp[l][i] * dp[r][j];
	}
	if(vec[v].str != "max"){
		rep(i, 0, 2) rep(j, 0, 2) dp[v][mex(i, j)] += dp[l][i] * dp[r][j];
	}
}

int main(void)
{
	ios::sync_with_stdio(0);
	cin.tie(0);

	cin >> s >> k;

	ll p = 0;
	parse(p);

	dfs(0);
	outl(dp[0][k]);

	return 0;
}

yukicoder

結果

テストケース

ソースコード