結果
問題 | No.2824 Lights Up! (Grid Edition) |
ユーザー | 👑 hos.lyric |
提出日時 | 2024-07-27 00:00:30 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 118 ms / 2,000 ms |
コード長 | 4,170 bytes |
コンパイル時間 | 1,248 ms |
コンパイル使用メモリ | 118,080 KB |
実行使用メモリ | 16,600 KB |
最終ジャッジ日時 | 2024-07-27 00:00:40 |
合計ジャッジ時間 | 8,158 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 5 ms
13,568 KB |
testcase_01 | AC | 5 ms
13,568 KB |
testcase_02 | AC | 6 ms
15,488 KB |
testcase_03 | AC | 3 ms
8,024 KB |
testcase_04 | AC | 8 ms
9,724 KB |
testcase_05 | AC | 34 ms
16,596 KB |
testcase_06 | AC | 8 ms
9,132 KB |
testcase_07 | AC | 99 ms
16,600 KB |
testcase_08 | AC | 9 ms
8,752 KB |
testcase_09 | AC | 29 ms
16,472 KB |
testcase_10 | AC | 8 ms
9,132 KB |
testcase_11 | AC | 92 ms
16,600 KB |
testcase_12 | AC | 8 ms
8,880 KB |
testcase_13 | AC | 88 ms
14,432 KB |
testcase_14 | AC | 8 ms
9,004 KB |
testcase_15 | AC | 102 ms
14,560 KB |
testcase_16 | AC | 8 ms
8,624 KB |
testcase_17 | AC | 91 ms
14,556 KB |
testcase_18 | AC | 8 ms
9,260 KB |
testcase_19 | AC | 118 ms
14,556 KB |
testcase_20 | AC | 5 ms
9,088 KB |
testcase_21 | AC | 22 ms
16,300 KB |
testcase_22 | AC | 3 ms
7,780 KB |
testcase_23 | AC | 75 ms
16,512 KB |
testcase_24 | AC | 4 ms
13,796 KB |
testcase_25 | AC | 8 ms
13,748 KB |
testcase_26 | AC | 5 ms
9,824 KB |
testcase_27 | AC | 67 ms
14,400 KB |
testcase_28 | AC | 3 ms
7,652 KB |
testcase_29 | AC | 11 ms
13,972 KB |
testcase_30 | AC | 3 ms
9,656 KB |
testcase_31 | AC | 4 ms
14,060 KB |
testcase_32 | AC | 4 ms
9,548 KB |
testcase_33 | AC | 8 ms
15,488 KB |
testcase_34 | AC | 3 ms
7,824 KB |
testcase_35 | AC | 5 ms
13,592 KB |
testcase_36 | AC | 3 ms
8,024 KB |
testcase_37 | AC | 4 ms
14,112 KB |
testcase_38 | AC | 3 ms
7,756 KB |
testcase_39 | AC | 6 ms
15,764 KB |
testcase_40 | AC | 3 ms
8,292 KB |
testcase_41 | AC | 7 ms
15,492 KB |
testcase_42 | AC | 3 ms
8,412 KB |
testcase_43 | AC | 5 ms
13,452 KB |
testcase_44 | AC | 3 ms
8,016 KB |
testcase_45 | AC | 3 ms
8,148 KB |
testcase_46 | AC | 6 ms
15,492 KB |
testcase_47 | AC | 5 ms
13,572 KB |
testcase_48 | AC | 6 ms
15,952 KB |
testcase_49 | AC | 6 ms
15,612 KB |
testcase_50 | AC | 3 ms
8,148 KB |
testcase_51 | AC | 5 ms
15,484 KB |
testcase_52 | AC | 4 ms
13,572 KB |
testcase_53 | AC | 4 ms
14,056 KB |
testcase_54 | AC | 3 ms
8,404 KB |
testcase_55 | AC | 6 ms
13,440 KB |
testcase_56 | AC | 3 ms
7,896 KB |
testcase_57 | AC | 6 ms
15,732 KB |
testcase_58 | AC | 3 ms
8,024 KB |
testcase_59 | AC | 6 ms
15,744 KB |
testcase_60 | AC | 3 ms
8,660 KB |
testcase_61 | AC | 6 ms
13,696 KB |
testcase_62 | AC | 3 ms
9,680 KB |
testcase_63 | AC | 5 ms
13,568 KB |
testcase_64 | AC | 3 ms
7,768 KB |
testcase_65 | AC | 6 ms
16,068 KB |
testcase_66 | AC | 3 ms
8,024 KB |
testcase_67 | AC | 6 ms
16,076 KB |
testcase_68 | AC | 5 ms
15,616 KB |
testcase_69 | AC | 2 ms
7,632 KB |
testcase_70 | AC | 3 ms
9,680 KB |
testcase_71 | AC | 3 ms
7,884 KB |
testcase_72 | AC | 3 ms
8,652 KB |
testcase_73 | AC | 4 ms
8,272 KB |
testcase_74 | AC | 2 ms
7,632 KB |
testcase_75 | AC | 3 ms
8,532 KB |
testcase_76 | AC | 3 ms
9,676 KB |
testcase_77 | AC | 4 ms
7,892 KB |
testcase_78 | AC | 3 ms
7,756 KB |
testcase_79 | AC | 3 ms
7,504 KB |
testcase_80 | AC | 3 ms
9,676 KB |
testcase_81 | AC | 3 ms
7,756 KB |
testcase_82 | AC | 3 ms
7,756 KB |
testcase_83 | AC | 6 ms
15,488 KB |
testcase_84 | AC | 4 ms
13,572 KB |
testcase_85 | AC | 5 ms
13,568 KB |
testcase_86 | AC | 5 ms
13,700 KB |
testcase_87 | AC | 5 ms
13,436 KB |
testcase_88 | AC | 3 ms
8,400 KB |
testcase_89 | AC | 3 ms
8,528 KB |
testcase_90 | AC | 5 ms
13,440 KB |
testcase_91 | AC | 6 ms
13,696 KB |
testcase_92 | AC | 5 ms
13,564 KB |
testcase_93 | AC | 4 ms
14,260 KB |
testcase_94 | AC | 3 ms
7,756 KB |
testcase_95 | AC | 5 ms
13,572 KB |
testcase_96 | AC | 5 ms
14,224 KB |
testcase_97 | AC | 6 ms
14,808 KB |
testcase_98 | AC | 5 ms
13,696 KB |
testcase_99 | AC | 5 ms
13,892 KB |
testcase_100 | AC | 5 ms
13,568 KB |
testcase_101 | AC | 4 ms
13,572 KB |
testcase_102 | AC | 7 ms
13,696 KB |
testcase_103 | AC | 4 ms
9,672 KB |
ソースコード
#include <cassert> #include <cmath> #include <cstdint> #include <cstdio> #include <cstdlib> #include <cstring> #include <algorithm> #include <bitset> #include <complex> #include <deque> #include <functional> #include <iostream> #include <limits> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <sstream> #include <string> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> using namespace std; using Int = long long; template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; }; template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; } template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; } template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; } template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; } #define COLOR(s) ("\x1b[" s "m") void exper() { for (int N = 1; N <= 5; ++N) { for (int x = 0; x < N; ++x) for (int y = 0; y < N; ++y) { vector<vector<int>> a(N, vector<int>(N, 0)); auto oper = [&](int i, int j) -> void { a[i][j] ^= 1; a[(i + N - 1) % N][j] ^= 1; a[i][(j + N - 1) % N] ^= 1; a[(i + N - 1) % N][(j + N - 1) % N] ^= 1; }; oper(x, y); oper(x, 0); oper(0, y); vector<vector<int>> b(N + 1, vector<int>(N + 1, 0)); for (int i = 0; i < N; ++i) for (int j = 0; j < N; ++j) { b[i + 1][j + 1] = b[i + 1][j] ^ b[i][j + 1] ^ b[i][j] ^ a[i][j]; } cerr << N << " " << x << " " << y << endl; for (int i = 0; i <= N; ++i) { for (int j = 0; j <= N; ++j) cerr << ".#"[b[i][j]]; cerr << endl; } } } } int N; char S[1010][1010]; int T[1010][1010]; int t[1010][1010]; int ans[1010][1010]; bool solve() { memset(T, 0, sizeof(T)); for (int x = 0; x < N; ++x) for (int y = 0; y < N; ++y) { T[x + 1][y + 1] = T[x + 1][y] ^ T[x][y + 1] ^ T[x][y] ^ ((S[x][y] != '.') ? 1 : 0); } for (int x = 0; x <= N; ++x) for (int y = 0; y <= N; ++y) if (x == 0 || x == N || y == 0 || y == N) { if (T[x][y]) return false; } #ifdef LOCAL for(int x=0;x<=N;++x){for(int y=0;y<=N;++y)cerr<<".#"[T[x][y]];cerr<<endl;} #endif if (N >= 2) { if ((N - 1) & 1) { for (int a = 0; a < 2; ++a) { memcpy(t, T, sizeof(T)); memset(ans, 0, sizeof(ans)); for (int x = 1; x < N; ++x) for (int y = 0; y < N; ++y) t[x][y] ^= a; ans[0][0] ^= a; for (int x = 2; x < N; ++x) for (int y = 2; y < N; ++y) if (t[x][y]) { t[1][1] ^= 1; t[1][y] ^= 1; t[x][1] ^= 1; t[x][y] ^= 1; ans[1][1] ^= 1; ans[1][y] ^= 1; ans[x][1] ^= 1; ans[x][y] ^= 1; } bool ok = true; for (int x = 1; x < N; ++x) for (int y = 1; y < N; ++y) ok = ok && (!t[x][y]); if (ok) { // cerr<<"ok a = "<<a<<endl; goto found; } } return false; found:{} } else { vector<int> row(N, 0), col(N, 0); memset(ans, 0, sizeof(ans)); for (int x = 1; x < N; ++x) for (int y = 1; y < N; ++y) if (T[x][y]) { ans[x][y] ^= 1; row[x] ^= 1; col[y] ^= 1; } for (int x = 1; x < N; ++x) for (int y = 1; y < N; ++y) { ans[x][y] ^= row[x]; ans[x][y] ^= col[y]; } } } int ansCnt = 0; for (int x = 0; x < N; ++x) for (int y = 0; y < N; ++y) if (ans[x][y]) ++ansCnt; printf("%d\n", ansCnt); for (int x = 0; x < N; ++x) for (int y = 0; y < N; ++y) if (ans[x][y]) printf("%d %d\n", x, y); return true; } int main() { // exper(); for (; ~scanf("%d", &N); ) { for (int x = 0; x < N; ++x) { scanf("%s", S[x]); } const bool res = solve(); if (!res) { puts("-1"); } } return 0; }