結果

問題 No.1183 コイン遊び
ユーザー hamrayhamray
提出日時 2020-11-18 18:11:28
言語 C++11
(gcc 11.4.0)
結果
AC  
実行時間 141 ms / 2,000 ms
コード長 4,003 bytes
コンパイル時間 1,464 ms
コンパイル使用メモリ 165,800 KB
実行使用メモリ 16,240 KB
最終ジャッジ日時 2024-07-23 09:08:54
合計ジャッジ時間 6,165 ms
ジャッジサーバーID
(参考情報)
judge4 / judge2
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
6,816 KB
testcase_01 AC 2 ms
6,940 KB
testcase_02 AC 2 ms
6,944 KB
testcase_03 AC 2 ms
6,940 KB
testcase_04 AC 2 ms
6,940 KB
testcase_05 AC 2 ms
6,944 KB
testcase_06 AC 1 ms
6,944 KB
testcase_07 AC 2 ms
6,940 KB
testcase_08 AC 2 ms
6,944 KB
testcase_09 AC 2 ms
6,944 KB
testcase_10 AC 5 ms
6,944 KB
testcase_11 AC 10 ms
6,944 KB
testcase_12 AC 88 ms
10,084 KB
testcase_13 AC 79 ms
9,688 KB
testcase_14 AC 128 ms
12,648 KB
testcase_15 AC 137 ms
13,156 KB
testcase_16 AC 139 ms
13,164 KB
testcase_17 AC 138 ms
13,168 KB
testcase_18 AC 138 ms
13,040 KB
testcase_19 AC 137 ms
13,168 KB
testcase_20 AC 138 ms
13,164 KB
testcase_21 AC 121 ms
10,860 KB
testcase_22 AC 114 ms
10,868 KB
testcase_23 AC 117 ms
10,992 KB
testcase_24 AC 118 ms
10,876 KB
testcase_25 AC 141 ms
13,076 KB
testcase_26 AC 138 ms
13,164 KB
testcase_27 AC 138 ms
13,040 KB
testcase_28 AC 137 ms
13,164 KB
testcase_29 AC 121 ms
10,984 KB
testcase_30 AC 125 ms
16,240 KB
testcase_31 AC 140 ms
13,164 KB
testcase_32 AC 137 ms
13,032 KB
testcase_33 AC 137 ms
13,164 KB
testcase_34 AC 139 ms
13,284 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>
//#include <atcoder/all>
//using namespace atcoder;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
const double pi = 3.141592653589793238462643383279;
using namespace std;
//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef pair<long long, long long> PLL;
typedef pair<int, PII> TIII;
typedef long long LL;
typedef unsigned long long ULL;
typedef vector<LL> VLL;
typedef vector<VLL> VVLL;

//container util
//------------------------------------------
#define ALL(a) (a).begin(), (a).endf()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define SQ(a) ((a) * (a))
#define EACH(i, c) for (typeof((c).begin()) i = (c).begin(); i != (c).endf(); ++i)
#define EXIST(s, e) ((s).find(e) != (s).endf())
#define SORT(c) sort((c).begin(), (c).endf())

//repetition
//------------------------------------------
#define FOR(i, s, n) for (int i = s; i < (int)n; ++i)
#define REP(i, n) FOR(i, 0, n)
#define MOD 1000000007

#define rep(i, a, b) for (int i = a; i < (b); ++i)
#define trav(a, x) for (auto &a : x)
#define all(x) x.begin(), x.end()

typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;

#define chmin(x, y) x = min(x, y)
#define chmax(x, y) x = max(x, y)
const double EPS = 1e-4, PI = acos(-1);
//ここから編集    
typedef string::const_iterator State;
template< int mod >
struct ModInt {
  int x;

  ModInt() : x(0) {}

  ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}

  ModInt &operator+=(const ModInt &p) {
    if((x += p.x) >= mod) x -= mod;
    return *this;
  }

  ModInt &operator-=(const ModInt &p) {
    if((x += mod - p.x) >= mod) x -= mod;
    return *this;
  }

  ModInt &operator*=(const ModInt &p) {
    x = (int) (1LL * x * p.x % mod);
    return *this;
  }

  ModInt &operator/=(const ModInt &p) {
    *this *= p.inverse();
    return *this;
  }

  ModInt operator-() const { return ModInt(-x); }

  ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; }

  ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; }

  ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; }

  ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; }

  bool operator==(const ModInt &p) const { return x == p.x; }

  bool operator!=(const ModInt &p) const { return x != p.x; }

  ModInt inverse() const {
    int a = x, b = mod, u = 1, v = 0, t;
    while(b > 0) {
      t = a / b;
      swap(a -= t * b, b);
      swap(u -= t * v, v);
    }
    return ModInt(u);
  }

  ModInt pow(int64_t n) const {
    ModInt ret(1), mul(x);
    while(n > 0) {
      if(n & 1) ret *= mul;
      mul *= mul;
      n >>= 1;
    }
    return ret;
  }

  friend ostream &operator<<(ostream &os, const ModInt &p) {
    return os << p.x;
  }

  friend istream &operator>>(istream &is, ModInt &a) {
    int64_t t;
    is >> t;
    a = ModInt< mod >(t);
    return (is);
  }

  static int get_mod() { return mod; }
};

using modint = ModInt< MOD >;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(15);

    int n; cin >> n;
    vector<int> a(n), b(n);
    REP(i,n) cin >> a[i];
    REP(i,n) cin >> b[i];

    int cnt = 0;
    int prev = -1;
    vector<int> v;
    for(int i=0; i<n; i++){
      if((a[i]!=b[i]) != prev){
        v.push_back((a[i]!=b[i]));
        prev = (a[i]!=b[i]);
      }
    }
    if(v.size() == 1){
      if(v[0] == 1) cout << 1 << endl;
      else cout << 0 << endl;
    }else if(v.size() == 2){
      cout << 1 << endl;
    }else{
      if(v[0] == 0 && v[v.size()-1] == 0){
        cout << (v.size()-2+1)/2 << endl;
      }else if(v[0] == 1 && v[v.size()-1] == 1){
        cout << (v.size() + 1)/2 << endl;
      }else{
        cout << v.size()/2 << endl;
      }
    }
    return 0;
}
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