제출 #1181376

#제출 시각아이디문제언어결과실행 시간메모리
1181376TudorMaRoom Temperature (JOI24_ho_t1)C++20
50 / 100
0 ms328 KiB
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define fi first #define sc second #define pb push_back #define int long long using namespace std; using namespace __gnu_pbds; typedef long long ll; typedef double db; typedef pair<int, int> pii; template<typename type> using ordered_set = tree<type, null_type, less<type>, rb_tree_tag, tree_order_statistics_node_update>; const int N = 5e5 + 5, mod = 1e9 + 7, inf = 2e9; const int dl[] = {-1, 0, 1, 0}, dc[] = {0, 1, 0, -1}; const int ddl[] = {-1, -1, -1, 0, 1, 1, 1, 0}, ddc[] = {-1, 0, 1, 1, 1, 0, -1, -1}; mt19937 gen(chrono::steady_clock::now().time_since_epoch().count()); int rng(int lo = 1, int hi = INT_MAX) { uniform_int_distribution<int> rnd(lo, hi); return rnd(gen); } struct mint { int val; mint(int32_t x = 0) { val = x % mod; } mint(long long x) { val = x % mod; } mint operator+(mint x) { return val + x.val; } mint operator-(mint x) { return val - x.val + mod; } mint operator*(mint x) { return 1LL * val * x.val; } void operator+=(mint x) { val = (*this + x).val; } void operator-=(mint x) { val = (*this - x).val; } void operator*=(mint x) { val = (*this * x).val; } friend auto operator>>(istream& in, mint &x) -> istream& { in >> x.val; x.val %= mod; return in; } friend auto operator<<(ostream& out, mint const &x) -> ostream& { out << x.val; return out; } }; int n, m, a[N]; int32_t main() { cin.tie(nullptr)->sync_with_stdio(0); cin >> n >> m; for(int i=1; i<=n; i++) cin >> a[i], a[i] %= m; sort(a+1, a+n+1); if(abs(a[1] - a[n]) > abs(a[1] - a[n] + m)) a[n] -= m; int med = (a[1] + a[n]) / 2, ans = 0; for(int i=1; i<=n; i++) ans = max(ans, min(abs(a[i]-med), abs(a[i]-m-med))); cout << ans; return 0; }
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