Submission #1515667


Source Code Expand

#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <typeinfo>
#include <utility>
#include <valarray>
#include <vector>

#define REP(i, m, n) for(int i=int(m);i<int(n);i++)
#define EACH(i, c) for (auto &(i): c)
#define all(c) begin(c),end(c)
#define EXIST(s, e) ((s).find(e)!=(s).end())
#define SORT(c) sort(begin(c),end(c))
#define pb emplace_back
#define MP make_pair
#define SZ(a) int((a).size())

//#define LOCAL 1
#ifdef LOCAL
#define DEBUG(s) cout << (s) << endl
#define dump(x)  cerr << #x << " = " << (x) << endl
#define BR cout << endl;
#else
#define DEBUG(s) do{}while(0)
#define dump(x) do{}while(0)
#define BR
#endif

//改造
typedef long long int ll;
using namespace std;

//ここから編集する

int rev(int num) {
    if (num == 1) return 2;
    if (num == 2) return 1;
    return -1;
}

int main() {
    vector<bool> input;//丸ならtrue,罰ならfalse
    int n;
    cin >> n;
    string str;
    cin >> str;
    for (int i = 0; i < n; i++) {
        if (str[i] == 'o') {
            input.push_back(true);
        } else if (str[i] == 'x') {
            input.push_back(false);
        }
    }
    vector<int> suppo;//羊なら1,オオカミなら2,何もいないなら0
    for (int i = 0; i < n; i++) {
        suppo.push_back(0);
    }

    string ans = "";
    bool mujun = true;

    for (int a = 1; a <= 2; a++) {
        for (int b = 1; b <= 2; b++) {
            suppo[0] = a;
            suppo[1] = b;
            //動物n-1を仮定
            int lastFriends = 0;
            if (suppo[0] == 1) {//0番目が羊
                if (input[0]) {//○とおっしゃる
                    lastFriends = suppo[1];
                } else {//罰と仰る
                    lastFriends = rev(suppo[1]);
                }
            } else if (suppo[0] == 2) {
                if (input[0]) {//○といってる
                    lastFriends = rev(suppo[1]);
                } else {//×と言ってる
                    lastFriends = suppo[1];
                }
            }
            //再帰的に動物を仮定
            for (int i = 0; i + 2 < n; i++) {
                if (suppo[i + 1] == 1) {
                    if (input[i + 1]) {
                        suppo[i + 2] = suppo[i];
                    } else {
                        suppo[i + 2] = rev(suppo[i]);
                    }
                } else if (suppo[i + 1] == 2) {
                    if (input[i + 1]) {
                        suppo[i + 2] = rev(suppo[i]);
                    } else {
                        suppo[i + 2] = suppo[i];
                    }
                }
            }
            //矛盾はないか?
//            if (lastFriends == suppo[n - 1]) {
//                if (!(suppo[n - 1] == 1 && suppo[n - 2] == suppo[0])) {
//                } else if (!(suppo[n - 1] == 2 && suppo[n - 2] != suppo[0])) {
//                } else {
//                    mujun = false;
//                    for (int i = 0; i < n; i++) {
//                        if (suppo[i] == 1) {
//                            ans += 'S';
//                        } else if (suppo[i] == 2) {
//                            ans += 'W';
//                        }
//                    }
//                    cout << ans << endl;
//                    return 0;
//                }
//            }

            if (lastFriends == suppo[n - 1] &&
                ((suppo[n - 1] == 1 && (suppo[n - 2] == suppo[0]) == input[n - 1]) ||
                 (suppo[n - 1] == 2 && ((suppo[n - 2] == suppo[0]) != input[n - 1])))) {
                for (int i = 0; i < n; i++) {
                    if (suppo[i] == 1) {
                        ans += 'S';
                    } else if (suppo[i] == 2) {
                        ans += 'W';
                    }
                }
                cout << ans << endl;
                return 0;
            }


            //初期化
            for (int i = 0; i < n; i++) {
                suppo[i] = 0;
            }
        }
//        //動物n-1を仮定
//        int lastFriends = 0;
//        if (suppo[0] == 1) {//0番目が羊
//            if (input[0]) {//○とおっしゃる
//                lastFriends = suppo[1];
//            } else {//罰と仰る
//                lastFriends = rev(suppo[1]);
//            }
//        } else if (suppo[0] == 2) {
//            if (input[0]) {//○といってる
//                lastFriends = rev(suppo[1]);
//            } else {//×と言ってる
//                lastFriends = suppo[1];
//            }
//        }
//        //再帰的に動物を仮定
//        for (int i = 0; i + 2 < n; i++) {
//            if (suppo[i + 1] == 1) {
//                if (input[i + 1]) {
//                    suppo[i + 2] = suppo[i];
//                } else {
//                    suppo[i + 2] = rev(suppo[i]);
//                }
//            } else if (suppo[i + 1] == 2) {
//                if (input[i + 1]) {
//                    suppo[i + 2] = rev(suppo[i]);
//                } else {
//                    suppo[i + 2] = suppo[i];
//                }
//            }
//        }
//        //矛盾はないか?
//        if (lastFriends == suppo[n - 1]) {
//            mujun = false;
//            for (int i = 0; i < n; i++) {
//                if (suppo[i] == 1) {
//                    ans += 'S';
//                } else if (suppo[i] == 2) {
//                    ans += 'W';
//                }
//            }
//            cout << ans << endl;
//            return 0;
//        }
//
//
//        //初期化
//        for (int i = 0; i < n; i++) {
//            suppo[i] = 0;
//        }
    }

    cout << -1 << endl;


    return 0;
}

Submission Info

Submission Time
Task D - Menagerie
User homesentinel
Language C++14 (GCC 5.4.1)
Score 500
Code Size 6355 Byte
Status AC
Exec Time 10 ms
Memory 1144 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 16
Set Name Test Cases
Sample 00_example_01.txt, 00_example_02.txt, 00_example_03.txt
All 00_example_01.txt, 00_example_02.txt, 00_example_03.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt
Case Name Status Exec Time Memory
00_example_01.txt AC 1 ms 256 KB
00_example_02.txt AC 1 ms 256 KB
00_example_03.txt AC 1 ms 256 KB
01.txt AC 6 ms 768 KB
02.txt AC 4 ms 768 KB
03.txt AC 1 ms 256 KB
04.txt AC 1 ms 256 KB
05.txt AC 8 ms 1020 KB
06.txt AC 7 ms 1020 KB
07.txt AC 2 ms 384 KB
08.txt AC 2 ms 512 KB
09.txt AC 1 ms 256 KB
10.txt AC 3 ms 512 KB
11.txt AC 9 ms 1144 KB
12.txt AC 10 ms 1144 KB
13.txt AC 9 ms 1144 KB