結果

問題 No.1650 Moving Coins
コンテスト
ユーザー Focus_Sash
提出日時 2021-08-20 23:39:50
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 4,913 bytes
コンパイル時間 4,134 ms
コンパイル使用メモリ 257,128 KB
最終ジャッジ日時 2025-01-24 00:48:51
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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ファイルパターン 結果
sample AC * 1 WA * 2
other AC * 1 WA * 19 RE * 4
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"
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using vl = vector<long long>;
using pl = pair<long long, long long>;
using PQ = priority_queue<long long>;
using PQR = priority_queue<long long, vector<long long>, greater<>>;
struct edge {long long to;long long cost;edge(long long t,long long c):to(t),cost(c){}};
using Graph = vector<vector<long long>>;
using WGraph = vector<vector<edge>>;
constexpr int dx[8]{1,0,-1,0,1,1,-1,-1};
constexpr int dy[8]{0,1,0,-1,1,-1,1,-1};
#define rep(i, n) for(long long (i) = 0; (i) < (n); (i)++)
#define all(v) (v).begin(), (v).end()
#define pb emplace_back
#define V vector
#define uniquify(vec) sort(all(vec)); (vec).erase(std::unique((vec).begin(), (vec).end()), (vec).end())
constexpr long long MOD1 = 1e9 + 7;
constexpr long long MOD9 =  998244353;
constexpr long long INF = MOD1*MOD1+1;
constexpr long long LL_MAX = std::numeric_limits<long long>::max();
long long safe_mod(long long n, long long m){if(n >= 0) {return n % m;} else return (n%m + m)%m;}
long long div_ceil(long long a, long long b){return (a + b - 1) / b;}
long long DIG(long long x, long long d){ll ret=0;while(x){x/=d;ret++;}return ret;}
long long pw(long long x,long long n) {ll ret=1;while(n>0){if(n&1){ret=ret*x;}if(n>>=1){x=x*x;}}return ret;}
template<typename T> T SUM(const vector<T> &v){T ret{};return(accumulate(all(v), ret));}
template<typename T> T pwmod(T x, long long n, long long m) {T ret=1;while(n>0){if(n&1)ret=ret*x%m;x=x*x%m;n>>=1;}return ret%m;}
template<typename T> void rsort(vector<T> &v) {sort(all(v), greater<T>());}
template<typename T> bool chmax(T &a,const T& b) {if(a<b){a=b;return true;}return false;}
template<typename T> bool chmin(T &a,const T& b) {if(a>b){a=b;return true;}return false;}
template<typename T> void fin(const T &a) {cout << a << '\n';exit(0);}
template<typename T, typename S> pair<T, S> mp(const T &a, const S &b){return make_pair(a, b);}
template<typename T> void unique(vector<T> &a){sort(all(a)); a.erase(std::unique(a.begin(), a.end()), a.end());}
template<typename T> vector<int> compress(vector<T> &a){
    int n = a.size(); vector<int> ret(n); vector<T> temp = a; unique(a);
    for(int i = 0; i < n; i++) ret[i] = lower_bound(a.begin(), a.end(), temp[i]) - a.begin();
    return ret;
}
std::ostream &operator<<(std::ostream& os, const modint1000000007 &m){
    os << m.val();
    return os;
}
std::ostream &operator<<(std::ostream& os, const modint998244353 &m){
    os << m.val();
    return os;
}
template<typename T, typename S>
std::ostream &operator<<(std::ostream& os, const pair<T, S> &p){
    os << "(" << p.first << ", " << p.second << ")";
    return os;
}
template <typename T>
std::ostream &operator<<(std::ostream& os, const vector<T> &v){
    int n = v.size();
    os << "[";
    for(int i = 0; i < n; i++){
        if(i == n - 1) os << v[i];
        else os << v[i] << ", ";
    }
    os << "]";
    return os;
}
template <typename T, typename S>
std::ostream &operator<<(std::ostream& os, const map<T, S> &mp){
    for(auto iter = mp.begin(); iter != mp.end(); iter++){
        os << "(" << iter->first << ", " << iter->second << ")" << " ";
    }
    return os;
}
template <typename T>
std::ostream &operator<<(std::ostream& os, const set<T> &s){
    os << "{";
    for(auto c : s) os << c << " ";
    os << "}";
    return os;
}
#define LOCAL
#ifdef LOCAL
#define dump(x) cerr << __LINE__ << " : " << #x << " = " << (x) << endl
#else
#define dump(x) true
#endif

//using mint = modint1000000007;
//using mint = modint998244353;



void solve(){
    ll n; cin >> n;
    vl a(n), b(n);
    rep(i,n){
        cin >> a[i];
        --a[i];
    }
    rep(i,n){
        cin >> b[i];
        --b[i];
    }
    fenwick_tree<ll> bit(1000000);
    rep(i, n){
        bit.add(a[i], 1);
    }
    vl list;
    rep(i, n){
        if(a[i] == b[i]){
            list.pb(i);
        } else if(a[i] > b[i]){
            if(bit.sum(b[i], a[i]) == 0){
                list.pb(i);
            }
        } else {
            if(bit.sum(a[i], b[i]) == 0){
                list.pb(i);
            }
        }
    }
    ll m = 0;
    vl al(n, 0);
    V<pair<char, ll>> ord;
    for(ll i : list){
        m += abs(a[i] - b[i]);
        al[i] = 1;
        bit.add(a[i], -1);
        bit.add(b[i], 1);
        if(a[i] > b[i]){
            ord.push_back({'L', abs(a[i] - b[i])});
            if(i < n - 1 && !al[i+1]){
                list.pb(i+1);
            }
        } else if(b[i] > a[i] && !al[i-1]){
            ord.push_back({'R', abs(a[i] - b[i])});
            if(i > 0){
                list.pb(i-1);
            }
        }
    }
    cout << m << '\n';
    for(auto [c, x] : ord){
        cout << c << ' ' << x << '\n';
    }
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << std::fixed << std::setprecision(15);

    solve();

    return 0;
}
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