結果
問題 | No.1384 Bishop and Rook |
ユーザー | rniya |
提出日時 | 2021-02-07 22:13:06 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,796 bytes |
コンパイル時間 | 2,192 ms |
コンパイル使用メモリ | 206,732 KB |
実行使用メモリ | 13,516 KB |
最終ジャッジ日時 | 2024-07-04 15:52:29 |
合計ジャッジ時間 | 14,987 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 |
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testcase_00 | AC | 2 ms
6,812 KB |
testcase_01 | WA | - |
testcase_02 | WA | - |
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testcase_55 | WA | - |
ソースコード
#define LOCAL #include <bits/stdc++.h> using namespace std; #pragma region Macros typedef long long ll; typedef __int128_t i128; typedef unsigned int uint; typedef unsigned long long ull; #define ALL(x) (x).begin(), (x).end() template <typename T> istream& operator>>(istream& is, vector<T>& v) { for (T& x : v) is >> x; return is; } template <typename T> ostream& operator<<(ostream& os, const vector<T>& v) { for (int i = 0; i < (int)v.size(); i++) { os << v[i] << (i + 1 == (int)v.size() ? "" : " "); } return os; } template <typename T, typename U> ostream& operator<<(ostream& os, const pair<T, U>& p) { os << '(' << p.first << ',' << p.second << ')'; return os; } template <typename T, typename U, typename V> ostream& operator<<(ostream& os, const tuple<T, U, V>& t) { os << '(' << get<0>(t) << ',' << get<1>(t) << ',' << get<2>(t) << ')'; return os; } template <typename T, typename U, typename V, typename W> ostream& operator<<(ostream& os, const tuple<T, U, V, W>& t) { os << '(' << get<0>(t) << ',' << get<1>(t) << ',' << get<2>(t) << ',' << get<3>(t) << ')'; return os; } template <typename T, typename U> ostream& operator<<(ostream& os, const map<T, U>& m) { os << '{'; for (auto itr = m.begin(); itr != m.end();) { os << '(' << itr->first << ',' << itr->second << ')'; if (++itr != m.end()) os << ','; } os << '}'; return os; } template <typename T, typename U> ostream& operator<<(ostream& os, const unordered_map<T, U>& m) { os << '{'; for (auto itr = m.begin(); itr != m.end();) { os << '(' << itr->first << ',' << itr->second << ')'; if (++itr != m.end()) os << ','; } os << '}'; return os; } template <typename T> ostream& operator<<(ostream& os, const set<T>& s) { os << '{'; for (auto itr = s.begin(); itr != s.end();) { os << *itr; if (++itr != s.end()) os << ','; } os << '}'; return os; } template <typename T> ostream& operator<<(ostream& os, const multiset<T>& s) { os << '{'; for (auto itr = s.begin(); itr != s.end();) { os << *itr; if (++itr != s.end()) os << ','; } os << '}'; return os; } template <typename T> ostream& operator<<(ostream& os, const unordered_set<T>& s) { os << '{'; for (auto itr = s.begin(); itr != s.end();) { os << *itr; if (++itr != s.end()) os << ','; } os << '}'; return os; } template <typename T> ostream& operator<<(ostream& os, const deque<T>& v) { for (int i = 0; i < (int)v.size(); i++) { os << v[i] << (i + 1 == (int)v.size() ? "" : " "); } return os; } void debug_out() { cerr << '\n'; } template <class Head, class... Tail> void debug_out(Head&& head, Tail&&... tail) { cerr << head; if (sizeof...(Tail) > 0) cerr << ", "; debug_out(move(tail)...); } #ifdef LOCAL #define debug(...) \ cerr << " "; \ cerr << #__VA_ARGS__ << " :[" << __LINE__ << ":" << __FUNCTION__ << "]" << '\n'; \ cerr << " "; \ debug_out(__VA_ARGS__) #else #define debug(...) 42 #endif template <typename T> T gcd(T x, T y) { return y != 0 ? gcd(y, x % y) : x; } template <typename T> T lcm(T x, T y) { return x / gcd(x, y) * y; } template <class T1, class T2> inline bool chmin(T1& a, T2 b) { if (a > b) { a = b; return true; } return false; } template <class T1, class T2> inline bool chmax(T1& a, T2 b) { if (a < b) { a = b; return true; } return false; } #pragma endregion const int INF = 1e9; const long long IINF = 1e18; const char dir[4] = {'D', 'R', 'U', 'L'}; const long long MOD = 1000000007; // const long long MOD = 998244353; const int dx[3][4] = {{0, 1, 1, 0}, {1, 0, 0, 1}, {0, 1, 0, 1}}, dy[3][4] = {{0, 1, 0, 1}, {1, 0, 1, 0}, {0, 1, 1, 0}}; void solve() { int N, M; cin >> N >> M; if (N == 1 && M == 1) { cout << 0 << '\n'; cout << 1 << ' ' << 1 << '\n'; return; } if ((N & 1) || (M & 1)) { cout << -1 << '\n'; return; } int x = 0, y = 0; vector<pair<int, int>> ans; if (N == 2) { while ((int)ans.size() < N * M) { for (int i = 0; i < 4; i++) ans.emplace_back(x + dx[0][i] + 1, y + dy[0][i] + 1); y += 2; } } else if (M == 2) { while ((int)ans.size() < N * M) { for (int i = 0; i < 4; i++) ans.emplace_back(x + dx[1][i] + 1, y + dy[1][i] + 1); x += 2; } } else { while ((int)ans.size() < N * M) { int cur, nx, ny; if (x % 4 == 0) { if (y == M - 2) { cur = 2; nx = 2, ny = 0; } else { cur = 0; nx = 0, ny = 2; } } else { if (y == M - 2) { cur = 2; nx = 0, ny = -2; } else if (y == 0) { cur = 1; nx = 2, ny = 0; } else { cur = 1; nx = 0, ny = -2; } } for (int i = 0; i < 4; i++) ans.emplace_back(x + dx[cur][i] + 1, y + dy[cur][i] + 1); x += nx, y += ny; // debug(cur, x, y); } } cout << ans.size() - 1 << '\n'; for (auto p : ans) cout << p.first << ' ' << p.second << '\n'; } int main() { cin.tie(0); ios::sync_with_stdio(false); int T; cin >> T; for (; T--;) solve(); return 0; }