結果
問題 | No.2517 Right Triangles on Circle |
ユーザー | siro53 |
提出日時 | 2023-10-27 22:12:28 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 182 ms / 2,000 ms |
コード長 | 4,673 bytes |
コンパイル時間 | 2,629 ms |
コンパイル使用メモリ | 211,956 KB |
実行使用メモリ | 10,836 KB |
最終ジャッジ日時 | 2024-09-25 14:16:23 |
合計ジャッジ時間 | 5,507 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
6,812 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 3 ms
6,944 KB |
testcase_11 | AC | 3 ms
6,944 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 182 ms
10,240 KB |
testcase_14 | AC | 175 ms
10,360 KB |
testcase_15 | AC | 182 ms
10,616 KB |
testcase_16 | AC | 134 ms
10,836 KB |
testcase_17 | AC | 143 ms
9,060 KB |
testcase_18 | AC | 132 ms
8,552 KB |
testcase_19 | AC | 115 ms
7,964 KB |
testcase_20 | AC | 118 ms
8,112 KB |
testcase_21 | AC | 178 ms
10,320 KB |
testcase_22 | AC | 43 ms
6,944 KB |
testcase_23 | AC | 124 ms
8,312 KB |
testcase_24 | AC | 54 ms
6,944 KB |
testcase_25 | AC | 37 ms
6,940 KB |
testcase_26 | AC | 151 ms
9,116 KB |
testcase_27 | AC | 41 ms
6,944 KB |
testcase_28 | AC | 23 ms
6,944 KB |
testcase_29 | AC | 52 ms
6,940 KB |
testcase_30 | AC | 31 ms
6,940 KB |
testcase_31 | AC | 125 ms
8,300 KB |
ソースコード
#line 1 "combined.cpp" #pragma region Macros #include <bits/stdc++.h> using namespace std; template <class T> inline bool chmax(T &a, T b) { if(a < b) { a = b; return 1; } return 0; } template <class T> inline bool chmin(T &a, T b) { if(a > b) { a = b; return 1; } return 0; } #ifdef DEBUG template <class T, class U> ostream &operator<<(ostream &os, const pair<T, U> &p) { os << '(' << p.first << ',' << p.second << ')'; return os; } template <class T> ostream &operator<<(ostream &os, const vector<T> &v) { os << '{'; for(int i = 0; i < (int)v.size(); i++) { if(i) { os << ','; } os << v[i]; } os << '}'; return os; } void debugg() { cerr << endl; } template <class T, class... Args> void debugg(const T &x, const Args &... args) { cerr << " " << x; debugg(args...); } #define debug(...) \ cerr << __LINE__ << " [" << #__VA_ARGS__ << "]: ", debugg(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif struct Setup { Setup() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(15); } } __Setup; using ll = long long; #define OVERLOAD3(_1, _2, _3, name, ...) name #define ALL(v) (v).begin(), (v).end() #define RALL(v) (v).rbegin(), (v).rend() #define REP1(i, n) for(int i = 0; i < int(n); i++) #define REP2(i, a, b) for(int i = (a); i < int(b); i++) #define REP(...) OVERLOAD3(__VA_ARGS__, REP2, REP1)(__VA_ARGS__) #define UNIQUE(v) sort(ALL(v)), (v).erase(unique(ALL(v)), (v).end()) #define REVERSE(v) reverse(ALL(v)) #define SZ(v) ((int)(v).size()) const int INF = 1 << 30; const ll LLINF = 1LL << 60; constexpr int MOD = 1000000007; constexpr int MOD2 = 998244353; const int dx[4] = {1, 0, -1, 0}; const int dy[4] = {0, 1, 0, -1}; void Case(int i) { cout << "Case #" << i << ": "; } int popcount(int x) { return __builtin_popcount(x); } ll popcount(ll x) { return __builtin_popcountll(x); } #pragma endregion Macros #line 2 "/Users/siro53/kyo-pro/compro_library/misc/compress.hpp" #line 5 "/Users/siro53/kyo-pro/compro_library/misc/compress.hpp" template <typename T> class Compress { public: Compress() = default; explicit Compress(const std::vector<T> &v) : dat(v) { build(); } void push_back(T val) { dat.push_back(val); } void build() { std::sort(dat.begin(), dat.end()); dat.erase(std::unique(dat.begin(), dat.end()), dat.end()); } int get(T val) const { int pos = std::lower_bound(dat.begin(), dat.end(), val) - dat.begin(); return pos; } T operator[](int i) const { return dat[i]; } size_t size() const { return dat.size(); } private: std::vector<T> dat; }; #line 2 "/Users/siro53/kyo-pro/compro_library/data-structure/BIT.hpp" #line 5 "/Users/siro53/kyo-pro/compro_library/data-structure/BIT.hpp" template <typename T> class BIT { public: BIT() = default; explicit BIT(int N) : N(N), dat(N + 1, 0) {} T sum(int r) { T ret = 0; for(; r >= 1; r -= lsb(r)) ret += dat[r]; return ret; } T sum(int l, int r) { assert(l <= r); if(l == r) return T(0); return (sum(r) - sum(l)); } void add(int pos, T val) { for(int i = pos + 1; i <= N; i += lsb(i)) dat[i] += val; } int lower_bound(T val) { int pos = 0; int k = 1; while(2 * k <= N) k <<= 1; for(; k >= 1; k >>= 1) { if(pos + k <= N and dat[pos + k] < val) { pos += k; val -= dat[pos]; } } return pos + 1; } private: int N; std::vector<T> dat; inline int lsb(int i) { return i & (-i); } }; #line 79 "combined.cpp" void solve() { int N; ll M; cin >> N >> M; vector<ll> A(N); Compress<ll> comp; REP(i, N) { cin >> A[i]; comp.push_back((A[i] * 2) % (M * 2)); } comp.build(); int sz = SZ(comp); vector<int> rev(sz); REP(i, N) rev[comp.get((A[i] * 2) % (M * 2))] = i; BIT<int> bt(N); ll ans = 0; REP(i, N) { int p = comp.get((A[i] * 2 + M) % (M * 2)); if(comp[p] != (A[i] * 2 + M) % (M * 2)) { // bt.add(i, 1); continue; } int l = rev[p], r = i; if(l > r) { // bt.add(i, 1); continue; } ans += N-2; bt.add(i, 1); } cout << ans << endl; } int main() { int T{1}; // cin >> T; while(T--) solve(); }