100 lines
2.1 KiB
C++
100 lines
2.1 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, B;
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cin >> n >> B;
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vector<pair<u32, u32>> pts(n);
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vector<u32> horiz_placements, vert_placements;
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for (u32 i = 0; i < n; ++i) {
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cin >> pts[i].ff >> pts[i].ss;
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vert_placements.emplace_back(pts[i].ff + 1);
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horiz_placements.emplace_back(pts[i].ss + 1);
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}
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u64 ans = numeric_limits<u64>::max();
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for (auto vp : vert_placements) {
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for (auto hp : horiz_placements) {
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u64 tl = 0, tr = 0, bl = 0, br = 0;
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for (auto &[x, y] : pts) {
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if (x < vp && y > hp)
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++tl;
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if (x > vp && y > hp)
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++tr;
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if (x < vp && y < hp)
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++bl;
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if (x > vp && y < hp)
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++br;
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}
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ans = min(ans, max({tl, tr, bl, br}));
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}
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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 "balancing"
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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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