結果
| 問題 |
No.2762 Counting and Deleting
|
| コンテスト | |
| ユーザー |
 tokusakurai
|
| 提出日時 | 2024-05-17 22:21:53 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 658 ms / 4,000 ms |
| コード長 | 11,175 bytes |
| コンパイル時間 | 2,545 ms |
| コンパイル使用メモリ | 219,264 KB |
| 最終ジャッジ日時 | 2025-02-21 15:00:03 |
|
ジャッジサーバーID （参考情報） |
judge5 / judge5 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 15 |
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;
}
int pct(int x) { return __builtin_popcount(x); }
int pct(ll x) { return __builtin_popcountll(x); }
int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
int botbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int botbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }
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>
void err_print(const vector<T> &v, T x = 0) {
int n = v.size();
for (int i = 0; i < n; i++) cerr << v[i] + x << ' ';
cerr << endl;
}
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 T>
void reorder(vector<T> &a, const vector<int> &ord) {
int n = a.size();
vector<T> b(n);
for (int i = 0; i < n; i++) b[i] = a[ord[i]];
swap(a, b);
}
template <typename T>
T floor(T x, T y) {
assert(y != 0);
if (y < 0) x = -x, y = -y;
return (x >= 0 ? x / y : (x - y + 1) / y);
}
template <typename T>
T ceil(T x, T y) {
assert(y != 0);
if (y < 0) x = -x, y = -y;
return (x >= 0 ? (x + y - 1) / y : x / y);
}
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);
cerr << fixed << setprecision(15);
}
} io_setup;
constexpr int inf = (1 << 30) - 1;
constexpr ll INF = (1LL << 60) - 1;
// constexpr int MOD = 1000000007;
constexpr int MOD = 998244353;
template <int mod>
struct Mod_Int {
int x;
Mod_Int() : x(0) {}
Mod_Int(long long y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}
static int get_mod() { return mod; }
Mod_Int &operator+=(const Mod_Int &p) {
if ((x += p.x) >= mod) x -= mod;
return *this;
}
Mod_Int &operator-=(const Mod_Int &p) {
if ((x += mod - p.x) >= mod) x -= mod;
return *this;
}
Mod_Int &operator*=(const Mod_Int &p) {
x = (int)(1LL * x * p.x % mod);
return *this;
}
Mod_Int &operator/=(const Mod_Int &p) {
*this *= p.inverse();
return *this;
}
Mod_Int &operator++() { return *this += Mod_Int(1); }
Mod_Int operator++(int) {
Mod_Int tmp = *this;
++*this;
return tmp;
}
Mod_Int &operator--() { return *this -= Mod_Int(1); }
Mod_Int operator--(int) {
Mod_Int tmp = *this;
--*this;
return tmp;
}
Mod_Int operator-() const { return Mod_Int(-x); }
Mod_Int operator+(const Mod_Int &p) const { return Mod_Int(*this) += p; }
Mod_Int operator-(const Mod_Int &p) const { return Mod_Int(*this) -= p; }
Mod_Int operator*(const Mod_Int &p) const { return Mod_Int(*this) *= p; }
Mod_Int operator/(const Mod_Int &p) const { return Mod_Int(*this) /= p; }
bool operator==(const Mod_Int &p) const { return x == p.x; }
bool operator!=(const Mod_Int &p) const { return x != p.x; }
Mod_Int inverse() const {
assert(*this != Mod_Int(0));
return pow(mod - 2);
}
Mod_Int pow(long long k) const {
Mod_Int now = *this, ret = 1;
for (; k > 0; k >>= 1, now *= now) {
if (k & 1) ret *= now;
}
return ret;
}
friend ostream &operator<<(ostream &os, const Mod_Int &p) { return os << p.x; }
friend istream &operator>>(istream &is, Mod_Int &p) {
long long a;
is >> a;
p = Mod_Int<mod>(a);
return is;
}
};
using mint = Mod_Int<MOD>;
template <typename Monoid>
struct Segment_Tree {
using M = typename Monoid::V;
int n, m;
vector<M> seg;
// f(f(a,b),c) = f(a,f(b,c)), f(e1,a) = f(a,e1) = a
Segment_Tree(const vector<M> &v) : n(v.size()) {
m = 1;
while (m < n) m <<= 1;
seg.assign(2 * m, Monoid::id);
copy(begin(v), end(v), begin(seg) + m);
build();
}
Segment_Tree(int n, M x = Monoid::id) : Segment_Tree(vector<M>(n, x)) {}
void set(int i, const M &x) { seg[m + i] = x; }
void build() {
for (int i = m - 1; i > 0; i--) seg[i] = Monoid::merge(seg[2 * i], seg[2 * i + 1]);
}
void update(int i, const M &x, bool apply = false) {
seg[i + m] = apply ? Monoid::merge(seg[i + m], x) : x;
i += m;
while (i >>= 1) seg[i] = Monoid::merge(seg[2 * i], seg[2 * i + 1]);
}
M query(int l, int r) const {
l = max(l, 0), r = min(r, n);
M L = Monoid::id, R = Monoid::id;
l += m, r += m;
while (l < r) {
if (l & 1) L = Monoid::merge(L, seg[l++]);
if (r & 1) R = Monoid::merge(seg[--r], R);
l >>= 1, r >>= 1;
}
return Monoid::merge(L, R);
}
M operator[](int i) const { return seg[m + i]; }
template <typename C>
int find_subtree(int i, const C &check, M &x, int type) const {
while (i < m) {
M nxt = type ? Monoid::merge(seg[2 * i + type], x) : Monoid::merge(x, seg[2 * i + type]);
if (check(nxt)) {
i = 2 * i + type;
} else {
x = nxt;
i = 2 * i + (type ^ 1);
}
}
return i - m;
}
// check(区間 [l,r] での演算結果) を満たす最小の r (存在しなければ n)
template <typename C>
int find_first(int l, const C &check) const {
M L = Monoid::id;
int a = l + m, b = 2 * m;
while (a < b) {
if (a & 1) {
M nxt = Monoid::merge(L, seg[a]);
if (check(nxt)) return find_subtree(a, check, L, 0);
L = nxt;
a++;
}
a >>= 1, b >>= 1;
}
return n;
}
// check((区間 [l,r) での演算結果)) 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 {
M R = Monoid::id;
int a = m, b = r + m;
while (a < b) {
if ((b & 1) || a == 1) {
M nxt = Monoid::merge(seg[--b], R);
if (check(nxt)) return find_subtree(b, check, R, 1);
R = nxt;
}
a >>= 1, b >>= 1;
}
return -1;
}
};
struct Data_1 {
vector<int> c;
vector<mint> x;
Data_1() : c(2, 0), x(8, 0) {}
Data_1(char a) : c(2, 0), x(8, 0) {
if (a == '0') {
c[0]++;
x[6]++;
} else {
c[1]++;
x[7]++;
}
}
};
struct Monoid_1 {
using V = Data_1;
static V merge(V a, V b) {
V c;
rep(i, 2) c.c[i] = a.c[i] + b.c[i];
rep(i, 8) rep(j, 8) {
int x = flg(j, 0);
if (!flg(i, x + 1)) continue;
int ni = (i & 1) | (j & 6);
c.x[ni] += a.x[i] * b.x[j];
}
rep(i, 8) {
int ni = i;
rep(t, 2) {
if (b.c[t] > 0) ni &= ~(1 << (t + 1));
}
c.x[ni] += a.x[i];
}
rep(j, 8) {
int f = flg(j, 0);
if (a.c[f] > 0) continue;
c.x[j] += b.x[j];
}
return c;
}
static V id;
};
Monoid_1::V Monoid_1::id = Data_1();
struct Func_1 {
constexpr Func_1() {}
};
struct Operator_1 {
using V = Func_1;
static V merge(V a, V b) { return a; }
static const V id;
};
constexpr Operator_1::V Operator_1::id = Func_1();
struct Acted_Monoid_1 {
using Monoid = Monoid_1;
using Operator = Operator_1;
using M = typename Monoid::V;
using O = typename Operator::V;
static M merge(M a, O b) { return a; }
};
void solve() {
int N, Q;
cin >> N >> Q;
string S;
cin >> S;
vector<Data_1> v(N);
rep(i, N) v[i] = Data_1(S[i]);
Segment_Tree<Monoid_1> seg(v);
set<int> s;
rep(i, N) s.emplace(i);
while (Q--) {
int t, l, r;
cin >> t >> l >> r;
l--;
// rep(i, N - 1) cout << seg.query(i, i + 2).x1 << ' ';
// rep(i, N - 2) cout << seg.query(i, i + 3).x1 << ' ';
// cout << '\n';
if (t == 1) {
for (auto it = s.lower_bound(l); it != end(s) && *it < r; it = s.erase(it)) {
int x = *it;
seg.update(x, Data_1());
}
} else {
auto unko = seg.query(l, r);
mint ans = 0;
rep(i, 8) {
if (flg(i, 0)) ans += unko.x[i];
}
cout << ans << '\n';
// cout << seg.query(l, r).x0 << ' ';
// cout << seg.query(l, r).x1 << '\n';
}
}
}
int main() {
int T = 1;
// cin >> T;
while (T--) solve();
}