結果
問題 | No.5002 stick xor |
ユーザー | 👑 emthrm |
提出日時 | 2020-03-16 04:51:23 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 903 ms / 1,000 ms |
コード長 | 3,349 bytes |
コンパイル時間 | 2,183 ms |
実行使用メモリ | 7,424 KB |
スコア | 3,943 |
最終ジャッジ日時 | 2020-03-16 04:51:59 |
ジャッジサーバーID (参考情報) |
judge7 / |
純コード判定しない問題か言語 |
(要ログイン)
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 | 902 ms
5,380 KB |
testcase_01 | AC | 902 ms
5,380 KB |
testcase_02 | AC | 902 ms
5,376 KB |
testcase_03 | AC | 903 ms
5,380 KB |
testcase_04 | AC | 902 ms
5,380 KB |
testcase_05 | AC | 902 ms
5,380 KB |
testcase_06 | AC | 902 ms
5,380 KB |
testcase_07 | AC | 902 ms
5,380 KB |
testcase_08 | AC | 902 ms
5,376 KB |
testcase_09 | AC | 902 ms
5,376 KB |
testcase_10 | AC | 902 ms
5,380 KB |
testcase_11 | AC | 902 ms
5,376 KB |
testcase_12 | AC | 902 ms
5,376 KB |
testcase_13 | AC | 901 ms
5,380 KB |
testcase_14 | AC | 901 ms
5,380 KB |
testcase_15 | AC | 902 ms
5,380 KB |
testcase_16 | AC | 902 ms
5,380 KB |
testcase_17 | AC | 902 ms
5,376 KB |
testcase_18 | AC | 902 ms
5,380 KB |
testcase_19 | AC | 902 ms
5,380 KB |
testcase_20 | AC | 902 ms
5,376 KB |
testcase_21 | AC | 902 ms
5,380 KB |
testcase_22 | AC | 902 ms
5,380 KB |
testcase_23 | AC | 902 ms
5,380 KB |
testcase_24 | AC | 902 ms
5,380 KB |
testcase_25 | AC | 902 ms
5,376 KB |
testcase_26 | AC | 901 ms
5,376 KB |
testcase_27 | AC | 901 ms
5,376 KB |
testcase_28 | AC | 902 ms
7,424 KB |
testcase_29 | AC | 902 ms
5,376 KB |
testcase_30 | AC | 902 ms
5,376 KB |
testcase_31 | AC | 902 ms
5,380 KB |
ソースコード
#define _USE_MATH_DEFINES #include <bits/stdc++.h> using namespace std; #define FOR(i,m,n) for(int i=(m);i<(n);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) (v).begin(),(v).end() using ll = long long; const int INF = 0x3f3f3f3f; const ll LINF = 0x3f3f3f3f3f3f3f3fLL; const double EPS = 1e-8; const int MOD = 1000000007; // const int MOD = 998244353; const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1}; const int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1}; template <typename T, typename U> inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; } template <typename T, typename U> inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; } struct IOSetup { IOSetup() { cin.tie(nullptr); ios_base::sync_with_stdio(false); cout << fixed << setprecision(20); } } iosetup; struct Timer { Timer() { reset(); } void reset() { beg = chrono::high_resolution_clock::now(); } ll elapsed() { chrono::high_resolution_clock::time_point en = chrono::high_resolution_clock::now(); return chrono::duration_cast<chrono::milliseconds>(en - beg).count(); } private: chrono::high_resolution_clock::time_point beg; } timer; struct Xor128 { int rand() { unsigned t = x ^ (x << 11); x = y; y = z; z = w; w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)); return static_cast<int>(w); } int rand(int ub) { int res = rand() % ub; return res < 0 ? res + ub : res; } int rand(int lb, int ub) { return lb + rand(ub - lb); } ll randll() { unsigned long long res = static_cast<unsigned long long>(rand()) << 32; return static_cast<ll>(res | rand()); } ll randll(ll ub) { ll res = randll() % ub; return res < 0 ? res + ub : res; } ll randll(ll lb, ll ub) { return lb + randll(ub - lb); } private: unsigned x = 123456789, y = 362436069, z = 521288629, w = static_cast<unsigned>(time(nullptr)); } xor128; int main() { int n, k; cin >> n >> k; vector<int> l(k); REP(i, k) cin >> l[i]; vector<string> A(n); REP(i, n) cin >> A[i]; int w0 = 0; REP(i, n) REP(j, n) w0 += A[i][j] == '0'; int score = -w0; vector<int> a(k, 0), b(k, 0), c(k, 0), d(k); REP(i, k) d[i] = l[i] - 1; function<int(vector<int>&, vector<int>&, vector<int>&, vector<int>&)> calc = [&](vector<int> &ai, vector<int> &bi, vector<int> &ci, vector<int> &di) { vector<vector<bool> > grid(n, vector<bool>(n)); REP(i, n) REP(j, n) grid[i][j] = A[i][j] == '1'; REP(i, k) { if (xor128.rand(2)) { int y = xor128.rand(n - l[i] + 1), x = xor128.rand(n); ai[i] = y; bi[i] = x; ci[i] = y + l[i] - 1; di[i] = x; FOR(j, y, y + l[i]) grid[j][x] = !grid[j][x]; } else { int y = xor128.rand(n), x = xor128.rand(n - l[i] + 1); ai[i] = y; bi[i] = x; ci[i] = y; di[i] = x + l[i] - 1; FOR(j, x, x + l[i]) grid[y][j] = !grid[y][j]; } } int res = -w0; REP(i, n) REP(j, n) res += !grid[i][j]; return res; }; while (timer.elapsed() < 900) { vector<int> ai(k), bi(k), ci(k), di(k); int now = calc(ai, bi, ci, di); if (now > score) { score = now; a = ai; b = bi; c = ci; d = di; } } REP(i, k) cout << a[i] + 1 << ' ' << b[i] + 1 << ' ' << c[i] + 1 << ' ' << d[i] + 1 << '\n'; return 0; }