87 lines
1.7 KiB
C++
87 lines
1.7 KiB
C++
#include <bits/stdc++.h> // {{{
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// https://codeforces.com/blog/entry/96344
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#pragma GCC optimize("O2,unroll-loops")
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#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
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using namespace std;
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using i32 = int32_t;
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using u32 = uint32_t;
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using i64 = int64_t;
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using u64 = uint64_t;
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using f64 = double;
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using f128 = long double;
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#if __cplusplus >= 202002L
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template <typename T> constexpr T MIN = std::numeric_limits<T>::min();
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template <typename T> constexpr T MAX = std::numeric_limits<T>::max();
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template <typename T> [[nodiscard]] static T sc(auto &&x) {
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return static_cast<T>(x);
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}
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template <typename T> [[nodiscard]] static T sz(auto &&x) {
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return static_cast<T>(x.size());
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}
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#endif
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static void NO() { std::cout << "NO\n"; }
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static void YES() { std::cout << "YES\n"; }
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#define all(x) (x).begin(), (x).end()
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#define rall(x) (x).rbegin(), (x).rend()
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#define ff first
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#define ss second
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#ifdef LOCAL
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#define db(...) std::print(__VA_ARGS__)
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#define dbln(...) std::println(__VA_ARGS__)
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#else
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#define db(...)
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#define dbln(...)
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#endif
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// }}}
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void solve() {
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u32 n, k;
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cin >> n >> k;
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vector<u64> diamonds(n);
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for (auto &e : diamonds)
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cin >> e;
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sort(all(diamonds));
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u32 r = 0;
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u32 ans = 0;
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for (u32 l = 0; l < n; ++l) {
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while (r < n && diamonds[r] - diamonds[l] <= k) {
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++r;
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}
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ans = max(ans, r - l);
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}
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cout << ans << '\n';
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}
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int main() { // {{{
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cin.tie(nullptr)->sync_with_stdio(false);
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cin.exceptions(cin.failbit);
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#define PROBLEM_NAME "diamond"
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#ifdef LOCAL
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freopen("io/" PROBLEM_NAME ".in", "r", stdin);
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freopen("io/" PROBLEM_NAME ".out", "w", stdout);
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#else
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freopen(PROBLEM_NAME ".in", "r", stdin);
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freopen(PROBLEM_NAME ".out", "w", stdout);
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#endif
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solve();
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return 0;
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}
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// }}}
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