結果
問題 | No.1557 Binary Variable |
ユーザー | scol_kp |
提出日時 | 2021-06-25 21:40:51 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 64 ms / 2,000 ms |
コード長 | 3,539 bytes |
コンパイル時間 | 2,297 ms |
コンパイル使用メモリ | 209,336 KB |
実行使用メモリ | 6,528 KB |
最終ジャッジ日時 | 2024-06-25 08:18:43 |
合計ジャッジ時間 | 5,728 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(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 | 40 ms
6,528 KB |
testcase_01 | AC | 44 ms
6,400 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 41 ms
6,400 KB |
testcase_05 | AC | 39 ms
6,400 KB |
testcase_06 | AC | 39 ms
6,272 KB |
testcase_07 | AC | 39 ms
6,272 KB |
testcase_08 | AC | 45 ms
6,400 KB |
testcase_09 | AC | 46 ms
6,400 KB |
testcase_10 | AC | 52 ms
6,400 KB |
testcase_11 | AC | 49 ms
6,400 KB |
testcase_12 | AC | 44 ms
6,528 KB |
testcase_13 | AC | 53 ms
6,400 KB |
testcase_14 | AC | 55 ms
6,272 KB |
testcase_15 | AC | 51 ms
6,272 KB |
testcase_16 | AC | 55 ms
6,400 KB |
testcase_17 | AC | 54 ms
6,400 KB |
testcase_18 | AC | 55 ms
6,272 KB |
testcase_19 | AC | 58 ms
6,400 KB |
testcase_20 | AC | 58 ms
6,400 KB |
testcase_21 | AC | 58 ms
6,400 KB |
testcase_22 | AC | 59 ms
6,400 KB |
testcase_23 | AC | 59 ms
6,400 KB |
testcase_24 | AC | 60 ms
6,400 KB |
testcase_25 | AC | 60 ms
6,400 KB |
testcase_26 | AC | 60 ms
6,400 KB |
testcase_27 | AC | 61 ms
6,400 KB |
testcase_28 | AC | 62 ms
6,272 KB |
testcase_29 | AC | 64 ms
6,400 KB |
testcase_30 | AC | 63 ms
6,400 KB |
testcase_31 | AC | 62 ms
6,400 KB |
testcase_32 | AC | 63 ms
6,272 KB |
testcase_33 | AC | 59 ms
6,400 KB |
testcase_34 | AC | 2 ms
5,376 KB |
testcase_35 | AC | 2 ms
5,376 KB |
testcase_36 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> #define FASTIO using namespace std; using ll = long long; using Vi = std::vector<int>; using Vl = std::vector<ll>; using Pii = std::pair<int, int>; using Pll = std::pair<ll, ll>; constexpr int I_INF = std::numeric_limits<int>::max(); constexpr ll L_INF = std::numeric_limits<ll>::max(); template <typename T1, typename T2> inline bool chmin(T1& a, const T2& b) { if (a > b) { a = b; return true; } return false; } template <typename T1, typename T2> inline bool chmax(T1& a, const T2& b) { if (a < b) { a = b; return true; } return false; } template <std::ostream& os = std::cout> class Prints { private: class __Prints { public: __Prints(const char* sep, const char* term) : sep(sep), term(term) {} template <class... Args> #if __cplusplus >= 201703L auto operator()(const Args&... args) const -> decltype((os << ... << std::declval<Args>()), void()) { #else void operator()(const Args&... args) const { #endif print(args...); } template <typename T> #if __cplusplus >= 201703L auto pvec(const T& vec, size_t sz) const -> decltype(os << std::declval<decltype(std::declval<T>()[0])>(), void()) { #else void pvec(const T& vec, size_t sz) const { #endif for (size_t i = 0; i < sz; i++) os << vec[i] << (i == sz - 1 ? term : sep); } template <typename T> #if __cplusplus >= 201703L auto pmat(const T& mat, size_t h, size_t w) const -> decltype(os << std::declval<decltype(std::declval<T>()[0][0])>(), void()) { #else void pmat(const T& mat, size_t h, size_t w) const { #endif for (size_t i = 0; i < h; i++) for (size_t j = 0; j < w; j++) os << mat[i][j] << (j == w - 1 ? term : sep); } private: const char *sep, *term; void print() const { os << term; } void print_rest() const { os << term; } template <class T, class... Tail> void print(const T& head, const Tail&... tail) const { os << head, print_rest(tail...); } template <class T, class... Tail> void print_rest(const T& head, const Tail&... tail) const { os << sep << head, print_rest(tail...); } }; public: Prints() {} __Prints operator()(const char* sep = " ", const char* term = "\n") const { return __Prints(sep, term); } }; Prints<> prints; Prints<std::cerr> prints_err; //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% void solve() { ll N, M; cin >> N >> M; vector<Pll> LR(M); for (ll i = 0; i < M; i++) { ll l, r; cin >> l >> r; LR[i] = {l, r}; } sort(LR.begin(), LR.end(), [](Pll& l, Pll& r) { return l.second < r.second; }); ll cnt = 0; ll cur = -1; for (ll i = 0; i < M; i++) { auto [l, r] = LR[i]; if (l > cur) { ++cnt; cur = r; } } prints()(N - cnt); } //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% int main() { #ifdef FASTIO std::cin.tie(nullptr), std::cout.tie(nullptr); std::ios::sync_with_stdio(false); #endif #ifdef FILEINPUT std::ifstream ifs("./in_out/input.txt"); std::cin.rdbuf(ifs.rdbuf()); #endif #ifdef FILEOUTPUT std::ofstream ofs("./in_out/output.txt"); std::cout.rdbuf(ofs.rdbuf()); #endif std::cout << std::setprecision(18) << std::fixed; solve(); std::cout << std::flush; return 0; }