#888544 (C++17) No.2373 wa, wo, n

• 問題: No.2373 wa, wo, n
• ユーザー: EWire
• 提出日時: 2023-07-07 22:10:41
• 言語: C++17 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 9 ms / 2,000 ms
• コード長: 3,454 bytes
• コンパイル時間: 4,505 ms
• コンパイル使用メモリ: 265,852 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-07-21 18:14:27
• 合計ジャッジ時間: 5,889 ms
• ジャッジサーバーID （参考情報）: judge5 / judge3

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; 5,248 KB
testcase_02	AC	2 ms; 5,248 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	2 ms; 5,376 KB
testcase_07	AC	2 ms; 5,376 KB
testcase_08	AC	2 ms; 5,376 KB
testcase_09	AC	2 ms; 5,376 KB
testcase_10	AC	2 ms; 5,376 KB
testcase_11	AC	2 ms; 5,376 KB
testcase_12	AC	2 ms; 5,376 KB
testcase_13	AC	2 ms; 5,376 KB
testcase_14	AC	8 ms; 5,376 KB
testcase_15	AC	3 ms; 5,376 KB
testcase_16	AC	8 ms; 5,376 KB
testcase_17	AC	4 ms; 5,376 KB
testcase_18	AC	2 ms; 5,376 KB
testcase_19	AC	4 ms; 5,376 KB
testcase_20	AC	6 ms; 5,376 KB
testcase_21	AC	4 ms; 5,376 KB
testcase_22	AC	4 ms; 5,376 KB
testcase_23	AC	6 ms; 5,376 KB
testcase_24	AC	2 ms; 5,376 KB
testcase_25	AC	2 ms; 5,376 KB
testcase_26	AC	2 ms; 5,376 KB
testcase_27	AC	3 ms; 5,376 KB
testcase_28	AC	2 ms; 5,376 KB
testcase_29	AC	2 ms; 5,376 KB
testcase_30	AC	2 ms; 5,376 KB
testcase_31	AC	2 ms; 5,376 KB
testcase_32	AC	9 ms; 5,376 KB
testcase_33	AC	6 ms; 5,376 KB
testcase_34	AC	7 ms; 5,376 KB
testcase_35	AC	7 ms; 5,376 KB
testcase_36	AC	7 ms; 5,376 KB
testcase_37	AC	7 ms; 5,376 KB
testcase_38	AC	7 ms; 5,376 KB
testcase_39	AC	7 ms; 5,376 KB
testcase_40	AC	8 ms; 5,376 KB
testcase_41	AC	8 ms; 5,376 KB
testcase_42	AC	8 ms; 5,376 KB

ソースコード

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;

// input
template<class T>
istream &operator>>(istream &is, vector<T> &v){
    for(T &in : v) is >> in;
    return is;
}
template<class T, class S>
istream &operator>>(istream &is, pair<T, S> &p){
    is >> p.first >> p.second;
    return is;
}
template<class... T> void input(T&... a) {(cin >> ... >> a);}

//output
template<class T>
ostream & operator<<(ostream &os, const vector<T> &v){
    for(int i = 0; i < (int)v.size(); i++) os << (i == 0 ? "" : " ") << v[i];
    return os;
}
template<class T, class S>
ostream &operator<<(ostream &os, const pair<T, S> &p){
    os << p.first << " " << p.second;
    return os;
}
template<class T, class S>
ostream &operator<<(ostream &os, const map<T, S> &mp){
    for(auto &[key, val] : mp) os << key << ":" << val << " ";
    return os;
}
template<class T>
ostream &operator<<(ostream &os, const set<T> &st){
    for(auto itr = st.begin(); itr != st.end(); itr++) os << (itr == st.begin() ? "" : " ") << *itr;
    return os;
}
template<class T>
ostream &operator<<(ostream &os, const multiset<T> &st){
    for(auto itr = st.begin(); itr != st.end(); itr++) os << (itr == st.begin() ? "" : " ") << *itr;
    return os;
}
template<class T>
ostream &operator<<(ostream &os, queue<T> que){
    while(!que.empty()) {
        os << que.front(); que.pop();
        if(!que.empty()) os << " ";
    }
    return os;
}
template<class T>
ostream &operator<<(ostream &os, stack<T> st){
    while(!st.empty()) {
        os << st.top(); st.pop();
        if(!st.empty()) os << " ";
    }
    return os;
}
template <class T, class Container, class Compare>
ostream &operator<<(ostream &os, priority_queue<T, Container, Compare> pq)
{
    while (!pq.empty()){
        os << pq.top(); pq.pop();
        if(!pq.empty()) os << " ";
    }
    return os;
}
void print() {cout << "\n";}
template<class T> void print(const T& a) {cout << a << '\n';}
template<class T, class... Ts> void print(const T& a, const Ts&... b) {cout << a; (..., (cout  << ' ' << b)); cout << '\n';}

#define debug(var) cout << #var << " = ";print(var);

typedef long long lint;
#define _overload3(_1,_2,_3,name,...) name
#define _rep(i,n) repi(i,0,n)
#define repi(i,a,b) for(int i=int(a);i<int(b);++i)
#define rep(...) _overload3(__VA_ARGS__,repi,_rep,)(__VA_ARGS__)
#define _overload3(_1,_2,_3,name,...) name
#define _rrep(i,n) rrepi(i,n,0)
#define rrepi(i,a,b) for(int i=int(a-1);i>=int(b);--i)
#define rrep(...) _overload3(__VA_ARGS__,rrepi,_rrep)(__VA_ARGS__)
#define all(x) (x).begin(),(x).end()

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

int main() {
    int N; string S; input(N, S);

    stack<char> st;
    rep(i, N){
        if(st.empty()){
            if(S[i] == 'w' || S[i] == '?') st.push(S[i]);
            else if(S[i] == 'n') continue;
            else {print("No"); return 0;}
        }
        else{
            if(st.top() == 'w'){
                if(S[i] == 'a' || S[i] == 'o' || S[i] == '?') st.pop();
                else {print("No"); return 0;}
            }
            else{
                if(S[i] == 'a' || S[i] == 'o' || S[i] == 'n') st.pop();
                else {st.pop(); st.push(S[i]);}
            }
        }
    }
    if(st.empty() || st.top() == '?') print("Yes");
    else print("No");
}