結果
| 問題 |
No.2432 Flip and Move
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-08-18 22:52:35 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 600 ms / 2,000 ms |
| コード長 | 3,997 bytes |
| コンパイル時間 | 2,264 ms |
| コンパイル使用メモリ | 210,428 KB |
| 最終ジャッジ日時 | 2025-02-16 10:34:00 |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 36 |
ソースコード
#pragma region Macros
#include <bits/stdc++.h>
using namespace std;
template <class T> inline bool chmax(T &a, T b) {
if(a < b) {
a = b;
return 1;
}
return 0;
}
template <class T> inline bool chmin(T &a, T b) {
if(a > b) {
a = b;
return 1;
}
return 0;
}
#ifdef DEBUG
template <class T, class U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
os << '(' << p.first << ',' << p.second << ')';
return os;
}
template <class T> ostream &operator<<(ostream &os, const vector<T> &v) {
os << '{';
for(int i = 0; i < (int)v.size(); i++) {
if(i) { os << ','; }
os << v[i];
}
os << '}';
return os;
}
void debugg() { cerr << endl; }
template <class T, class... Args>
void debugg(const T &x, const Args &... args) {
cerr << " " << x;
debugg(args...);
}
#define debug(...) \
cerr << __LINE__ << " [" << #__VA_ARGS__ << "]: ", debugg(__VA_ARGS__)
#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
struct Setup {
Setup() {
cin.tie(0);
ios::sync_with_stdio(false);
cout << fixed << setprecision(15);
}
} __Setup;
using ll = long long;
#define OVERLOAD3(_1, _2, _3, name, ...) name
#define ALL(v) (v).begin(), (v).end()
#define RALL(v) (v).rbegin(), (v).rend()
#define REP1(i, n) for(int i = 0; i < int(n); i++)
#define REP2(i, a, b) for(int i = (a); i < int(b); i++)
#define REP(...) OVERLOAD3(__VA_ARGS__, REP2, REP1)(__VA_ARGS__)
#define UNIQUE(v) sort(ALL(v)), (v).erase(unique(ALL(v)), (v).end())
#define REVERSE(v) reverse(ALL(v))
#define SZ(v) ((int)(v).size())
const int INF = 1 << 30;
const ll LLINF = 1LL << 60;
constexpr int MOD = 1000000007;
constexpr int MOD2 = 998244353;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};
void Case(int i) { cout << "Case #" << i << ": "; }
int popcount(int x) { return __builtin_popcount(x); }
ll popcount(ll x) { return __builtin_popcountll(x); }
#pragma endregion Macros
void solve() {
int H, W;
cin >> H >> W;
ll K;
cin >> K;
vector seen(H, vector(W, vector<int>(4, -1)));
vector<tuple<int, int, int>> v;
// 0 -> 下,右 1 -> 上,左
int x = 0, y = 0, dir = 0;
v.emplace_back(x, y, dir);
seen[x][y][dir] = 0;
int start = -1;
while(1) {
debug(x, y, dir);
int nx = x + ((dir & 1) ? -1 : 1);
int ny = y + ((dir >> 1 & 1) ? -1 : 1);
int ndir = 0;
if(nx < 0 or nx >= H) {
nx = x;
if(!(dir & 1)) ndir |= (1 << 0);
} else {
if(dir & 1) ndir |= (1 << 0);
}
if(ny < 0 or ny >= W) {
ny = y;
if(!(dir >> 1 & 1)) ndir |= (1 << 1);
} else {
if(dir >> 1 & 1) ndir |= (1 << 1);
}
if(seen[nx][ny][ndir] != -1) {
start = seen[nx][ny][ndir];
break;
}
seen[nx][ny][ndir] = SZ(v);
v.emplace_back(nx, ny, ndir);
x = nx;
y = ny;
dir = ndir;
}
debug(start, SZ(v));
int loop_len = SZ(v) - start;
vector<string> S(H, string(W, '.'));
REP(i, min(K, (ll)start)) {
auto [x, y, _] = v[i];
S[x][y] = (S[x][y] == '.' ? '#' : '.');
}
if(K <= start) {
REP(i, H) cout << S[i] << '\n';
return;
}
K -= start;
if(K / loop_len > 0) {
REP(_, (((K / loop_len) & 1) ? 1 : 2)) {
REP(i, start, SZ(v)) {
auto [x, y, _] = v[i];
S[x][y] = (S[x][y] == '.' ? '#' : '.');
}
}
}
REP(i, start, SZ(v)) {
auto [x, y, _] = v[i];
if(i - start < K % loop_len) {
S[x][y] = (S[x][y] == '.' ? '#' : '.');
} else break;
}
REP(i, H) cout << S[i] << '\n';
}
int main() {
int T = 1;
// cin >> T;
while(T--) solve();
}