結果
問題 | No.2731 Two Colors |
ユーザー | torisasami4 |
提出日時 | 2024-04-19 21:32:50 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 270 ms / 3,000 ms |
コード長 | 6,513 bytes |
コンパイル時間 | 2,466 ms |
コンパイル使用メモリ | 214,308 KB |
実行使用メモリ | 11,532 KB |
最終ジャッジ日時 | 2024-10-11 14:11:04 |
合計ジャッジ時間 | 6,871 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 269 ms
11,136 KB |
testcase_01 | AC | 270 ms
11,008 KB |
testcase_02 | AC | 270 ms
11,008 KB |
testcase_03 | AC | 4 ms
5,248 KB |
testcase_04 | AC | 10 ms
5,248 KB |
testcase_05 | AC | 9 ms
5,248 KB |
testcase_06 | AC | 28 ms
5,248 KB |
testcase_07 | AC | 29 ms
5,248 KB |
testcase_08 | AC | 6 ms
5,248 KB |
testcase_09 | AC | 104 ms
9,592 KB |
testcase_10 | AC | 4 ms
5,248 KB |
testcase_11 | AC | 126 ms
11,532 KB |
testcase_12 | AC | 103 ms
9,324 KB |
testcase_13 | AC | 102 ms
9,140 KB |
testcase_14 | AC | 49 ms
6,108 KB |
testcase_15 | AC | 6 ms
5,248 KB |
testcase_16 | AC | 49 ms
6,080 KB |
testcase_17 | AC | 66 ms
7,148 KB |
testcase_18 | AC | 14 ms
5,248 KB |
testcase_19 | AC | 51 ms
6,260 KB |
testcase_20 | AC | 65 ms
7,484 KB |
testcase_21 | AC | 15 ms
5,248 KB |
testcase_22 | AC | 115 ms
10,276 KB |
testcase_23 | AC | 30 ms
5,248 KB |
testcase_24 | AC | 16 ms
5,248 KB |
testcase_25 | AC | 3 ms
5,248 KB |
testcase_26 | AC | 87 ms
8,580 KB |
testcase_27 | AC | 111 ms
10,360 KB |
testcase_28 | AC | 77 ms
8,192 KB |
testcase_29 | AC | 25 ms
5,248 KB |
testcase_30 | AC | 42 ms
6,284 KB |
testcase_31 | AC | 31 ms
5,288 KB |
testcase_32 | AC | 143 ms
11,508 KB |
testcase_33 | AC | 2 ms
5,248 KB |
testcase_34 | AC | 2 ms
5,248 KB |
testcase_35 | AC | 2 ms
5,248 KB |
ソースコード
// #define _GLIBCXX_DEBUG // #pragma GCC optimize("O2,unroll-loops") #include <bits/stdc++.h> using namespace std; #define rep(i, n) for (int i = 0; i < int(n); i++) #define per(i, n) for (int i = (n)-1; 0 <= i; i--) #define rep2(i, l, r) for (int i = (l); i < int(r); i++) #define per2(i, l, r) for (int i = (r)-1; int(l) <= i; i--) #define each(e, v) for (auto &e : v) #define MM << " " << #define pb push_back #define eb emplace_back #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) #define sz(x) (int)x.size() template <typename T> void print(const vector<T> &v, T x = 0) { int n = v.size(); for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' '); if (v.empty()) cout << '\n'; } using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; template <typename T> bool chmax(T &x, const T &y) { return (x < y) ? (x = y, true) : false; } template <typename T> bool chmin(T &x, const T &y) { return (x > y) ? (x = y, true) : false; } template <class T> using minheap = std::priority_queue<T, std::vector<T>, std::greater<T>>; template <class T> using maxheap = std::priority_queue<T>; template <typename T> int lb(const vector<T> &v, T x) { return lower_bound(begin(v), end(v), x) - begin(v); } template <typename T> int ub(const vector<T> &v, T x) { return upper_bound(begin(v), end(v), x) - begin(v); } template <typename T> void rearrange(vector<T> &v) { sort(begin(v), end(v)); v.erase(unique(begin(v), end(v)), end(v)); } // __int128_t gcd(__int128_t a, __int128_t b) { // if (a == 0) // return b; // if (b == 0) // return a; // __int128_t cnt = a % b; // while (cnt != 0) { // a = b; // b = cnt; // cnt = a % b; // } // return b; // } struct Union_Find_Tree { vector<int> data; const int n; int cnt; Union_Find_Tree(int n) : data(n, -1), n(n), cnt(n) {} int root(int x) { if (data[x] < 0) return x; return data[x] = root(data[x]); } int operator[](int i) { return root(i); } bool unite(int x, int y) { x = root(x), y = root(y); if (x == y) return false; // if (data[x] > data[y]) swap(x, y); data[x] += data[y], data[y] = x; cnt--; return true; } int size(int x) { return -data[root(x)]; } int count() { return cnt; }; bool same(int x, int y) { return root(x) == root(y); } void clear() { cnt = n; fill(begin(data), end(data), -1); } }; template <int mod> struct Mod_Int { int x; Mod_Int() : x(0) {} Mod_Int(long long y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} static int get_mod() { return mod; } Mod_Int &operator+=(const Mod_Int &p) { if ((x += p.x) >= mod) x -= mod; return *this; } Mod_Int &operator-=(const Mod_Int &p) { if ((x += mod - p.x) >= mod) x -= mod; return *this; } Mod_Int &operator*=(const Mod_Int &p) { x = (int)(1LL * x * p.x % mod); return *this; } Mod_Int &operator/=(const Mod_Int &p) { *this *= p.inverse(); return *this; } Mod_Int &operator++() { return *this += Mod_Int(1); } Mod_Int operator++(int) { Mod_Int tmp = *this; ++*this; return tmp; } Mod_Int &operator--() { return *this -= Mod_Int(1); } Mod_Int operator--(int) { Mod_Int tmp = *this; --*this; return tmp; } Mod_Int operator-() const { return Mod_Int(-x); } Mod_Int operator+(const Mod_Int &p) const { return Mod_Int(*this) += p; } Mod_Int operator-(const Mod_Int &p) const { return Mod_Int(*this) -= p; } Mod_Int operator*(const Mod_Int &p) const { return Mod_Int(*this) *= p; } Mod_Int operator/(const Mod_Int &p) const { return Mod_Int(*this) /= p; } bool operator==(const Mod_Int &p) const { return x == p.x; } bool operator!=(const Mod_Int &p) const { return x != p.x; } Mod_Int inverse() const { assert(*this != Mod_Int(0)); return pow(mod - 2); } Mod_Int pow(long long k) const { Mod_Int now = *this, ret = 1; for (; k > 0; k >>= 1, now *= now) { if (k & 1) ret *= now; } return ret; } friend ostream &operator<<(ostream &os, const Mod_Int &p) { return os << p.x; } friend istream &operator>>(istream &is, Mod_Int &p) { long long a; is >> a; p = Mod_Int<mod>(a); return is; } }; ll mpow(ll x, ll n, ll mod) { ll ans = 1; x %= mod; while (n != 0) { if (n & 1) ans = ans * x % mod; x = x * x % mod; n = n >> 1; } ans %= mod; return ans; } template <typename T> T modinv(T a, const T &m) { T b = m, u = 1, v = 0; while (b > 0) { T t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return u >= 0 ? u % m : (m - (-u) % m) % m; } ll divide_int(ll a, ll b) { if (b < 0) a = -a, b = -b; return (a >= 0 ? a / b : (a - b + 1) / b); } // const int MOD = 1000000007; const int MOD = 998244353; using mint = Mod_Int<MOD>; // ----- library ------- // ----- library ------- int main() { ios::sync_with_stdio(false); std::cin.tie(nullptr); cout << fixed << setprecision(15); int h, w; cin >> h >> w; vector<vector<int>> a(h, vector<int>(w)); rep(i, h) rep(j, w) cin >> a[i][j]; vector<minheap<pair<int, pii>>> que(2); int dx[] = {1, -1, 0, 0}, dy[] = {0, 0, 1, -1}; vector<vector<int>> b = a; rep(i, h) rep(j, w) b[i][j] = -1; b[0][0] = 0, b[h - 1][w - 1] = 1; bool f = false; auto upd = [&](int i, int j) { rep(dir, 4) { int ni = i + dx[dir], nj = j + dy[dir]; if (ni < 0 || h <= ni || nj < 0 || w <= nj) continue; if (b[ni][nj] == -1) que[b[i][j]].emplace(a[ni][nj], pair(ni, nj)); else if (b[ni][nj] != b[i][j]) f = true; } }; upd(0, 0), upd(h - 1, w - 1); int ans = 0; rep(t, h * w) { if (f) break; int m = t % 2; while (sz(que[m])) { auto [val, ij] = que[m].top(); auto [i, j] = ij; que[m].pop(); if (b[i][j] != -1) continue; b[i][j] = m; upd(i, j); ans++; break; } } cout << ans << endl; }