結果

問題 No.1433 Two color sequence
ユーザー keikei
提出日時 2021-03-19 21:52:18
言語 C++17
(gcc 13.2.0 + boost 1.83.0)
結果
AC  
実行時間 197 ms / 2,000 ms
コード長 2,749 bytes
コンパイル時間 3,737 ms
コンパイル使用メモリ 208,624 KB
実行使用メモリ 16,832 KB
最終ジャッジ日時 2023-08-12 01:56:28
合計ジャッジ時間 6,708 ms
ジャッジサーバーID
(参考情報)
judge14 / judge12
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 1 ms
4,380 KB
testcase_01 AC 1 ms
4,380 KB
testcase_02 AC 2 ms
4,384 KB
testcase_03 AC 15 ms
4,380 KB
testcase_04 AC 15 ms
4,384 KB
testcase_05 AC 1 ms
4,380 KB
testcase_06 AC 1 ms
4,380 KB
testcase_07 AC 1 ms
4,380 KB
testcase_08 AC 134 ms
16,628 KB
testcase_09 AC 155 ms
16,356 KB
testcase_10 AC 147 ms
15,908 KB
testcase_11 AC 165 ms
16,008 KB
testcase_12 AC 165 ms
16,280 KB
testcase_13 AC 156 ms
16,356 KB
testcase_14 AC 190 ms
16,528 KB
testcase_15 AC 173 ms
16,536 KB
testcase_16 AC 197 ms
16,588 KB
testcase_17 AC 157 ms
16,584 KB
testcase_18 AC 174 ms
16,640 KB
testcase_19 AC 157 ms
16,536 KB
testcase_20 AC 195 ms
16,832 KB
testcase_21 AC 162 ms
16,536 KB
testcase_22 AC 166 ms
16,648 KB
testcase_23 AC 181 ms
16,528 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

diff #

#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int INF = 1e9;
const ll LINF = 1e18;
inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; }
template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; }
template<class T> ostream& operator << (ostream& out,const vector<T>& V){ for(size_t i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; }
template<class T> ostream& operator << (ostream& out,const vector<vector<T> >& Mat){ for(size_t i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; }
template<class S,class T> ostream& operator << (ostream& out,const map<S,T>& mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; }
template<typename T>vector<T> make_v(size_t a){return vector<T>(a);}
template<typename T,typename... Ts>auto make_v(size_t a,Ts... ts){return vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));}
template<typename T,typename V> typename enable_if<is_class<T>::value==0>::type fill_v(T &t,const V &v){t=v;}
template<typename T,typename V> typename enable_if<is_class<T>::value!=0>::type fill_v(T &t,const V &v){for(auto &e:t) fill_v(e,v);}
/*
 <url:>
 問題文============================================================
 =================================================================
 解説=============================================================
 ================================================================
 */

template<class Type>
Type solve(Type res = Type()){
    ll N; cin >> N;
    string S; cin >> S;
    vector<int> a(N); 
    for(auto& in:a) cin >> in;

    {
        map<ll,ll> mp;
        ll RB = 0;
        mp[0]++;
        for(int i = 0; i < N;i++){
            if(S[i] == 'R'){
                RB += a[i];
            }else{
                RB -= a[i];
            }
            mp[RB]++;
        }

        res = max(res,abs(mp.rbegin()->first - mp.begin()->first));
    }
    {
        map<ll,ll> mp;
        ll BR = 0;
        mp[0]++;
        for(int i = 0; i < N;i++){
            if(S[i] == 'R'){
                BR -= a[i];
            }else{
                BR += a[i];
            }
            mp[BR]++;
        }

        res = max(res,abs(mp.rbegin()->first - mp.begin()->first));
    }
    return res;
}
int main(void) {
    cin.tie(0); ios::sync_with_stdio(false);
    //solve<ll>(0);
    cout << fixed << setprecision(12) << solve<ll>() << endl;
    return 0;
}
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