結果
問題 | No.1668 Grayscale |
ユーザー | keijak |
提出日時 | 2021-09-04 01:12:56 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 369 ms / 4,000 ms |
コード長 | 3,517 bytes |
コンパイル時間 | 2,264 ms |
コンパイル使用メモリ | 215,412 KB |
実行使用メモリ | 31,420 KB |
最終ジャッジ日時 | 2024-05-09 09:54:57 |
合計ジャッジ時間 | 5,098 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 271 ms
31,420 KB |
testcase_07 | AC | 280 ms
31,420 KB |
testcase_08 | AC | 69 ms
14,976 KB |
testcase_09 | AC | 367 ms
31,420 KB |
testcase_10 | AC | 369 ms
31,252 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 20 ms
5,376 KB |
testcase_14 | AC | 69 ms
9,568 KB |
testcase_15 | AC | 53 ms
8,924 KB |
testcase_16 | AC | 42 ms
6,540 KB |
testcase_17 | AC | 16 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 3 ms
5,376 KB |
testcase_21 | AC | 3 ms
5,376 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> #define REP_(i, a_, b_, a, b, ...) \ for (int i = (a), END_##i = (b); i < END_##i; ++i) #define REP(i, ...) REP_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define ALL(x) std::begin(x), std::end(x) using i64 = long long; template<typename T, typename U> inline bool chmax(T &a, U b) { return a < b and ((a = std::move(b)), true); } template<typename T, typename U> inline bool chmin(T &a, U b) { return a > b and ((a = std::move(b)), true); } template<typename T> inline int ssize(const T &a) { return (int) std::size(a); } template<typename T> std::istream &operator>>(std::istream &is, std::vector<T> &a) { for (auto &x: a) is >> x; return is; } template<typename T, typename U> std::ostream &operator<<(std::ostream &os, const std::pair<T, U> &a) { return os << "(" << a.first << ", " << a.second << ")"; } template<typename Container> std::ostream &print_seq(const Container &a, std::string_view sep = " ", std::string_view ends = "\n", std::ostream &os = std::cout) { auto b = std::begin(a), e = std::end(a); for (auto it = std::begin(a); it != e; ++it) { if (it != b) os << sep; os << *it; } return os << ends; } template<typename T, typename = void> struct is_iterable : std::false_type {}; template<typename T> struct is_iterable<T, std::void_t<decltype(std::begin(std::declval<T>())), decltype(std::end(std::declval<T>()))>> : std::true_type { }; template<typename T, typename = std::enable_if_t< is_iterable<T>::value && !std::is_same<T, std::string_view>::value && !std::is_same<T, std::string>::value>> std::ostream &operator<<(std::ostream &os, const T &a) { return print_seq(a, ", ", "", (os << "{")) << "}"; } void print() { std::cout << "\n"; } template<class T> void print(const T &x) { std::cout << x << "\n"; } template<typename Head, typename... Tail> void print(const Head &head, Tail... tail) { std::cout << head << " "; print(tail...); } struct Input { template<typename T> operator T() const { T x; std::cin >> x; return x; } } in; #ifdef MY_DEBUG #include "debug_dump.hpp" #else #define DUMP(...) #endif using namespace std; template<typename T> void rotate90(vector<vector<T>> &grid, int &H, int &W) { assert((int) grid.size() == H); auto tmp = vector(W, vector(H, T())); for (int i = 0; i < H; ++i) { assert((int) grid[i].size() == W); for (int j = 0; j < W; ++j) { tmp[W - 1 - j][i] = grid[i][j]; } } grid = std::move(tmp); std::swap(H, W); } auto solve() { int H = in, W = in, N = in; vector C(H, vector(W, 0)); REP(i, H) { REP(j, W) { int c = in; C[i][j] = c; } } vector<pair<int, int>> intervals; auto grid = C; REP(trans, 2) { REP(i, H - 1) REP(j, W) { int l = grid[i][j]; int r = grid[i + 1][j]; if (l == r) continue; if (l > r) swap(l, r); intervals.push_back({r, l}); } rotate90(grid, H, W); } sort(ALL(intervals)); intervals.erase(unique(ALL(intervals)), intervals.end()); DUMP(intervals); int last = -100; int cnt = 1; for (auto[r, l]: intervals) { if (l <= last) continue; cnt++; last = r - 1; } assert(cnt <= N); return cnt; } int main() { ios_base::sync_with_stdio(false), cin.tie(nullptr); cout << std::fixed << std::setprecision(18); const int t = 1; REP(test_case, t) { auto ans = solve(); print(ans); } }