結果
問題 | No.2080 Simple Nim Query |
ユーザー | tokusakurai |
提出日時 | 2022-09-25 21:23:00 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 124 ms / 3,000 ms |
コード長 | 6,703 bytes |
コンパイル時間 | 2,007 ms |
コンパイル使用メモリ | 208,476 KB |
実行使用メモリ | 8,968 KB |
最終ジャッジ日時 | 2024-06-12 07:21:41 |
合計ジャッジ時間 | 3,764 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 1 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 46 ms
6,940 KB |
testcase_04 | AC | 50 ms
6,944 KB |
testcase_05 | AC | 124 ms
8,856 KB |
testcase_06 | AC | 116 ms
8,852 KB |
testcase_07 | AC | 113 ms
8,848 KB |
testcase_08 | AC | 106 ms
8,920 KB |
testcase_09 | AC | 107 ms
8,968 KB |
testcase_10 | AC | 72 ms
8,860 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for (int i = 0; i < (n); i++) #define per(i, n) for (int i = (n)-1; i >= 0; i--) #define rep2(i, l, r) for (int i = (l); i < (r); i++) #define per2(i, l, r) for (int i = (r)-1; i >= (l); i--) #define each(e, v) for (auto &e : v) #define MM << " " << #define pb push_back #define eb emplace_back #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) #define sz(x) (int)x.size() using ll = long long; using pii = pair<int, int>; using pil = pair<int, ll>; using pli = pair<ll, int>; using pll = pair<ll, ll>; template <typename T> using minheap = priority_queue<T, vector<T>, greater<T>>; template <typename T> using maxheap = priority_queue<T>; template <typename T> bool chmax(T &x, const T &y) { return (x < y) ? (x = y, true) : false; } template <typename T> bool chmin(T &x, const T &y) { return (x > y) ? (x = y, true) : false; } template <typename T> int flg(T x, int i) { return (x >> i) & 1; } template <typename T> void print(const vector<T> &v, T x = 0) { int n = v.size(); for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' '); if (v.empty()) cout << '\n'; } template <typename T> void printn(const vector<T> &v, T x = 0) { int n = v.size(); for (int i = 0; i < n; i++) cout << v[i] + x << '\n'; } template <typename T> int lb(const vector<T> &v, T x) { return lower_bound(begin(v), end(v), x) - begin(v); } template <typename T> int ub(const vector<T> &v, T x) { return upper_bound(begin(v), end(v), x) - begin(v); } template <typename T> void rearrange(vector<T> &v) { sort(begin(v), end(v)); v.erase(unique(begin(v), end(v)), end(v)); } template <typename T> vector<int> id_sort(const vector<T> &v, bool greater = false) { int n = v.size(); vector<int> ret(n); iota(begin(ret), end(ret), 0); sort(begin(ret), end(ret), [&](int i, int j) { return greater ? v[i] > v[j] : v[i] < v[j]; }); return ret; } template <typename S, typename T> pair<S, T> operator+(const pair<S, T> &p, const pair<S, T> &q) { return make_pair(p.first + q.first, p.second + q.second); } template <typename S, typename T> pair<S, T> operator-(const pair<S, T> &p, const pair<S, T> &q) { return make_pair(p.first - q.first, p.second - q.second); } template <typename S, typename T> istream &operator>>(istream &is, pair<S, T> &p) { S a; T b; is >> a >> b; p = make_pair(a, b); return is; } template <typename S, typename T> ostream &operator<<(ostream &os, const pair<S, T> &p) { return os << p.first << ' ' << p.second; } struct io_setup { io_setup() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout << fixed << setprecision(15); } } io_setup; const int inf = (1 << 30) - 1; const ll INF = (1LL << 60) - 1; // const int MOD = 1000000007; const int MOD = 998244353; template <typename Monoid> struct Segment_Tree { using F = function<Monoid(Monoid, Monoid)>; int n; vector<Monoid> seg; const F f; const Monoid e1; // f(f(a,b),c) = f(a,f(b,c)), f(e1,a) = f(a,e1) = a Segment_Tree(const vector<Monoid> &v, const F &f, const Monoid &e1) : f(f), e1(e1) { int m = v.size(); n = 1; while (n < m) n <<= 1; seg.assign(2 * n, e1); copy(begin(v), end(v), seg.begin() + n); for (int i = n - 1; i > 0; i--) seg[i] = f(seg[2 * i], seg[2 * i + 1]); } Segment_Tree(int m, const Monoid &x, const F &f, const Monoid &e1) : Segment_Tree(vector<Monoid>(m, x), f, e1) {} void change(int i, const Monoid &x, bool update = true) { if (update) { seg[i + n] = x; } else { seg[i + n] = f(seg[i + n], x); } i += n; while (i >>= 1) seg[i] = f(seg[2 * i], seg[2 * i + 1]); } Monoid query(int l, int r) const { l = max(l, 0), r = min(r, n); Monoid L = e1, R = e1; l += n, r += n; while (l < r) { if (l & 1) L = f(L, seg[l++]); if (r & 1) R = f(seg[--r], R); l >>= 1, r >>= 1; } return f(L, R); } Monoid operator[](int i) const { return seg[n + i]; } template <typename C> int find_subtree(int i, const C &check, const Monoid &x, Monoid &M, int type) const { while (i < n) { Monoid nxt = type ? f(seg[2 * i + type], M) : f(M, seg[2 * i + type]); if (check(nxt, x)) { i = 2 * i + type; } else { M = nxt; i = 2 * i + (type ^ 1); } } return i - n; } // check((区間 [l,r] での演算結果), x) を満たす最小の r (存在しなければ n 以上の値) template <typename C> int find_first(int l, const C &check, const Monoid &x) const { Monoid L = e1; int a = l + n, b = n + n; while (a < b) { if (a & 1) { Monoid nxt = f(L, seg[a]); if (check(nxt, x)) return find_subtree(a, check, x, L, 0); L = nxt, a++; } a >>= 1, b >>= 1; } return n; } // check((区間 [l,r) での演算結果), x) を満たす最大の l (存在しなければ -1) template <typename C> int find_last(int r, const C &check, const Monoid &x) const { Monoid R = e1; int a = n, b = r + n; while (a < b) { if ((b & 1) || a == 1) { Monoid nxt = f(seg[--b], R); if (check(nxt, x)) return find_subtree(b, check, x, R, 1); R = nxt; } a >>= 1, b >>= 1; } return -1; } }; int main() { int N, Q; cin >> N >> Q; auto f = [](pii p, pii q) { if (p == pii(-1, -1)) return q; if (q == pii(-1, -1)) return p; auto [a, b] = p; auto [c, d] = q; pii r; if (a == 0) { r.first = d; } else { r.first = c; } if (b == 0) { r.second = d; } else { r.second = c; } return r; }; vector<pii> v(N); rep(i, N) { int a; cin >> a; v[i].first = 0; v[i].second = (a == 1 ? 1 : 0); } Segment_Tree<pii> seg(v, f, pii(-1, -1)); while (Q--) { int t, x, y; cin >> t >> x >> y; x--; if (t == 1) { pii p; p.first = 0; p.second = (y == 1 ? 1 : 0); seg.change(x, p); } else { auto p = seg.query(x, y); cout << (p.first == 0 ? "F\n" : "S\n"); } } }