結果
問題 | No.1668 Grayscale |
ユーザー | Aoxiang Cui |
提出日時 | 2021-09-03 22:28:38 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,763 bytes |
コンパイル時間 | 1,685 ms |
コンパイル使用メモリ | 127,476 KB |
実行使用メモリ | 8,448 KB |
最終ジャッジ日時 | 2024-05-09 05:08:32 |
合計ジャッジ時間 | 7,589 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | WA | - |
testcase_01 | WA | - |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | WA | - |
testcase_05 | TLE | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
コンパイルメッセージ
main.cpp: In function 'int main()': main.cpp:159:16: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions] 159 | for (auto& [v, w] : a[u]) { | ^
ソースコード
// #define LOCAL #define _USE_MATH_DEFINES #include <array> #include <cassert> #include <cstdio> #include <cstring> #include <iostream> #include <iomanip> #include <string> #include <sstream> #include <vector> #include <queue> #include <stack> #include <list> #include <set> #include <map> #include <unordered_set> #include <unordered_map> #include <algorithm> #include <complex> #include <cmath> #include <numeric> #include <bitset> #include <functional> #include <random> #include <ctime> using namespace std; template <typename A, typename B> ostream& operator <<(ostream& out, const pair<A, B>& a) { out << "(" << a.first << "," << a.second << ")"; return out; } template <typename T, size_t N> ostream& operator <<(ostream& out, const array<T, N>& a) { out << "["; bool first = true; for (auto& v : a) { out << (first ? "" : ", "); out << v; first = 0;} out << "]"; return out; } template <typename T> ostream& operator <<(ostream& out, const vector<T>& a) { out << "["; bool first = true; for (auto v : a) { out << (first ? "" : ", "); out << v; first = 0;} out << "]"; return out; } template <typename T, class Cmp> ostream& operator <<(ostream& out, const set<T, Cmp>& a) { out << "{"; bool first = true; for (auto& v : a) { out << (first ? "" : ", "); out << v; first = 0;} out << "}"; return out; } template <typename U, typename T, class Cmp> ostream& operator <<(ostream& out, const map<U, T, Cmp>& a) { out << "{"; bool first = true; for (auto& p : a) { out << (first ? "" : ", "); out << p.first << ":" << p.second; first = 0;} out << "}"; return out; } #ifdef LOCAL #define trace(...) __f(#__VA_ARGS__, __VA_ARGS__) #else #define trace(...) 42 #endif template <typename Arg1> void __f(const char* name, Arg1&& arg1){ cerr << name << ": " << arg1 << endl; } template <typename Arg1, typename... Args> void __f(const char* names, Arg1&& arg1, Args&&... args){ const char* comma = strchr(names + 1, ','); cerr.write(names, comma - names) << ": " << arg1 << " |"; __f(comma + 1, args...); } template <class T> auto vect(const T& v, int n) { return vector<T>(n, v); } template <class T, class... D> auto vect(const T& v, int n, D... m) { return vector<decltype(vect(v, m...))>(n, vect(v, m...)); } typedef long long int64; typedef pair<int, int> ii; #define SZ(x) (int)((x).size()) template <typename T> static constexpr T inf = numeric_limits<T>::max() / 2; const int MOD = 1e9 + 7; // const int MOD = 998244353; mt19937 mrand(random_device{}()); int rnd(int x) { return mrand() % x; } // mt19937_64 mrand(random_device{}()); // int64 rnd(int64 x) { return mrand() % x; } template <class T> void out(const vector<T>& a) { for (int i = 0; i < SZ(a); ++i) cout << a[i] << " \n"[i + 1 == SZ(a)]; } template <class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; } template <class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; } template <class T> void dedup(vector<T>& v) { sort(v.begin(), v.end()); v.erase(unique(v.begin(), v.end()), v.end()); } void add(int& x, int y) { x += y; if (x >= MOD) x -= MOD; } struct fast_ios { fast_ios() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(10); }; } fast_ios_; int main() { int n, m, len; cin >> n >> m >> len; auto b = vect<int>(0, n, m); for (int i = 0; i < n; ++i) { for (int j = 0; j < m; ++j) { cin >> b[i][j]; --b[i][j]; } } int nn = n * m + len; vector<vector<ii>> a(nn); auto add_edge = [&](int x, int y, int z) { // trace(x, y, z); a[x].push_back({y, z}); }; for (int k = 0; k + 1 < len; ++k) { add_edge(k, k + 1, 0); } for (int i = 0; i < n; ++i) { for (int j = 0; j < m; ++j) { int x = len + i * m + j; add_edge(x, b[i][j], 0); add_edge(b[i][j], x, 0); if (i + 1 < n) { int y = len + (i + 1) * m + j; if (b[i][j] < b[i + 1][j]) { add_edge(x, y, 1); } else if (a[i][j] > a[i + 1][j]) { add_edge(y, x, 1); } } if (j + 1 < m) { int y = len + i * m + (j + 1); if (b[i][j] < b[i][j + 1]) { add_edge(x, y, 1); } else if (b[i][j] > b[i][j + 1]) { add_edge(y, x, 1); } } } } vector<int> d(nn, -inf<int>); vector<bool> visit(nn); d[0] = 0; visit[0] = true; vector<int> Q = {0}; while (!Q.empty()) { int u = Q.back(); Q.pop_back(); visit[u] = false; for (auto& [v, w] : a[u]) { trace(u, v, w, d[u], d[v]); if (d[v] < d[u] + w) { d[v] = d[u] + w; if (!visit[v]) { visit[v] = true; Q.push_back(v); } } } } trace(d); cout << d[len - 1] + 1 << '\n'; return 0; }