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test_atcoder/abc256ex.test.cpp
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- Last update: 2024-04-27 11:55:26+09:00
- Problem: https://atcoder.jp/contests/abc256/tasks/abc256_Ex
Depends on
- alg/acted_monoid/sum_assign.hpp
- alg/monoid/add.hpp
- alg/monoid/assign.hpp
- ds/fastset.hpp
- ds/intervals.hpp
- ds/segtree/lazy_segtree.hpp
- my_template.hpp
- other/io.hpp
Code
#define PROBLEM "https://atcoder.jp/contests/abc256/tasks/abc256_Ex"
#include "my_template.hpp"
#include "other/io.hpp"
#include "ds/intervals.hpp"
#include "ds/segtree/lazy_segtree.hpp"
#include "alg/acted_monoid/sum_assign.hpp"
void solve() {
LL(N, Q);
VEC(ll, A, N);
Intervals_Fast<int> I(N, 0);
FOR(i, N) I.set(i, i + 1, A[i]);
Lazy_SegTree<ActedMonoid_Sum_Assign<ll, -1>> seg(A);
FOR(Q) {
INT(t, L, R);
--L;
if (t == 2) {
LL(y);
I.set(L, R, y);
seg.apply(L, R, y);
}
if (t == 3) { print(seg.prod(L, R)); }
if (t == 1) {
INT(d);
vc<tuple<int, int, int>> tmp;
I.enumerate_range(
L, R, [&](int l, int r, int x) -> void { tmp.eb(l, r, x / d); },
true);
for (auto&& [l, r, x]: tmp) {
seg.apply(l, r, x);
I.set(l, r, x);
}
}
}
}
signed main() {
solve();
return 0;
}#line 1 "test_atcoder/abc256ex.test.cpp"
#define PROBLEM "https://atcoder.jp/contests/abc256/tasks/abc256_Ex"
#line 1 "my_template.hpp"
#if defined(LOCAL)
#include <my_template_compiled.hpp>
#else
// https://codeforces.com/blog/entry/96344
#pragma GCC optimize("Ofast,unroll-loops")
// いまの CF だとこれ入れると動かない？
// #pragma GCC target("avx2,popcnt")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using u32 = unsigned int;
using u64 = unsigned long long;
using i128 = __int128;
using u128 = unsigned __int128;
using f128 = __float128;
template <class T>
constexpr T infty = 0;
template <>
constexpr int infty<int> = 1'000'000'000;
template <>
constexpr ll infty<ll> = ll(infty<int>) * infty<int> * 2;
template <>
constexpr u32 infty<u32> = infty<int>;
template <>
constexpr u64 infty<u64> = infty<ll>;
template <>
constexpr i128 infty<i128> = i128(infty<ll>) * infty<ll>;
template <>
constexpr double infty<double> = infty<ll>;
template <>
constexpr long double infty<long double> = infty<ll>;
using pi = pair<ll, ll>;
using vi = vector<ll>;
template <class T>
using vc = vector<T>;
template <class T>
using vvc = vector<vc<T>>;
template <class T>
using vvvc = vector<vvc<T>>;
template <class T>
using vvvvc = vector<vvvc<T>>;
template <class T>
using vvvvvc = vector<vvvvc<T>>;
template <class T>
using pq = priority_queue<T>;
template <class T>
using pqg = priority_queue<T, vector<T>, greater<T>>;
#define vv(type, name, h, ...) \
vector<vector<type>> name(h, vector<type>(__VA_ARGS__))
#define vvv(type, name, h, w, ...) \
vector<vector<vector<type>>> name( \
h, vector<vector<type>>(w, vector<type>(__VA_ARGS__)))
#define vvvv(type, name, a, b, c, ...) \
vector<vector<vector<vector<type>>>> name( \
a, vector<vector<vector<type>>>( \
b, vector<vector<type>>(c, vector<type>(__VA_ARGS__))))
// https://trap.jp/post/1224/
#define FOR1(a) for (ll _ = 0; _ < ll(a); ++_)
#define FOR2(i, a) for (ll i = 0; i < ll(a); ++i)
#define FOR3(i, a, b) for (ll i = a; i < ll(b); ++i)
#define FOR4(i, a, b, c) for (ll i = a; i < ll(b); i += (c))
#define FOR1_R(a) for (ll i = (a)-1; i >= ll(0); --i)
#define FOR2_R(i, a) for (ll i = (a)-1; i >= ll(0); --i)
#define FOR3_R(i, a, b) for (ll i = (b)-1; i >= ll(a); --i)
#define overload4(a, b, c, d, e, ...) e
#define overload3(a, b, c, d, ...) d
#define FOR(...) overload4(__VA_ARGS__, FOR4, FOR3, FOR2, FOR1)(__VA_ARGS__)
#define FOR_R(...) overload3(__VA_ARGS__, FOR3_R, FOR2_R, FOR1_R)(__VA_ARGS__)
#define FOR_subset(t, s) \
for (ll t = (s); t >= 0; t = (t == 0 ? -1 : (t - 1) & (s)))
#define all(x) x.begin(), x.end()
#define len(x) ll(x.size())
#define elif else if
#define eb emplace_back
#define mp make_pair
#define mt make_tuple
#define fi first
#define se second
#define stoi stoll
int popcnt(int x) { return __builtin_popcount(x); }
int popcnt(u32 x) { return __builtin_popcount(x); }
int popcnt(ll x) { return __builtin_popcountll(x); }
int popcnt(u64 x) { return __builtin_popcountll(x); }
int popcnt_mod_2(int x) { return __builtin_parity(x); }
int popcnt_mod_2(u32 x) { return __builtin_parity(x); }
int popcnt_mod_2(ll x) { return __builtin_parityll(x); }
int popcnt_mod_2(u64 x) { return __builtin_parityll(x); }
// (0, 1, 2, 3, 4) -> (-1, 0, 1, 1, 2)
int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(u32 x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
int topbit(u64 x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
// (0, 1, 2, 3, 4) -> (-1, 0, 1, 0, 2)
int lowbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int lowbit(u32 x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int lowbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }
int lowbit(u64 x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }
template <typename T>
T floor(T a, T b) {
return a / b - (a % b && (a ^ b) < 0);
}
template <typename T>
T ceil(T x, T y) {
return floor(x + y - 1, y);
}
template <typename T>
T bmod(T x, T y) {
return x - y * floor(x, y);
}
template <typename T>
pair<T, T> divmod(T x, T y) {
T q = floor(x, y);
return {q, x - q * y};
}
template <typename T, typename U>
T SUM(const vector<U> &A) {
T sm = 0;
for (auto &&a: A) sm += a;
return sm;
}
#define MIN(v) *min_element(all(v))
#define MAX(v) *max_element(all(v))
#define LB(c, x) distance((c).begin(), lower_bound(all(c), (x)))
#define UB(c, x) distance((c).begin(), upper_bound(all(c), (x)))
#define UNIQUE(x) \
sort(all(x)), x.erase(unique(all(x)), x.end()), x.shrink_to_fit()
template <typename T>
T POP(deque<T> &que) {
T a = que.front();
que.pop_front();
return a;
}
template <typename T>
T POP(pq<T> &que) {
T a = que.top();
que.pop();
return a;
}
template <typename T>
T POP(pqg<T> &que) {
T a = que.top();
que.pop();
return a;
}
template <typename T>
T POP(vc<T> &que) {
T a = que.back();
que.pop_back();
return a;
}
template <typename F>
ll binary_search(F check, ll ok, ll ng, bool check_ok = true) {
if (check_ok) assert(check(ok));
while (abs(ok - ng) > 1) {
auto x = (ng + ok) / 2;
(check(x) ? ok : ng) = x;
}
return ok;
}
template <typename F>
double binary_search_real(F check, double ok, double ng, int iter = 100) {
FOR(iter) {
double x = (ok + ng) / 2;
(check(x) ? ok : ng) = x;
}
return (ok + ng) / 2;
}
template <class T, class S>
inline bool chmax(T &a, const S &b) {
return (a < b ? a = b, 1 : 0);
}
template <class T, class S>
inline bool chmin(T &a, const S &b) {
return (a > b ? a = b, 1 : 0);
}
// ? は -1
vc<int> s_to_vi(const string &S, char first_char) {
vc<int> A(S.size());
FOR(i, S.size()) { A[i] = (S[i] != '?' ? S[i] - first_char : -1); }
return A;
}
template <typename T, typename U>
vector<T> cumsum(vector<U> &A, int off = 1) {
int N = A.size();
vector<T> B(N + 1);
FOR(i, N) { B[i + 1] = B[i] + A[i]; }
if (off == 0) B.erase(B.begin());
return B;
}
// stable sort
template <typename T>
vector<int> argsort(const vector<T> &A) {
vector<int> ids(len(A));
iota(all(ids), 0);
sort(all(ids),
[&](int i, int j) { return (A[i] == A[j] ? i < j : A[i] < A[j]); });
return ids;
}
// A[I[0]], A[I[1]], ...
template <typename T>
vc<T> rearrange(const vc<T> &A, const vc<int> &I) {
vc<T> B(len(I));
FOR(i, len(I)) B[i] = A[I[i]];
return B;
}
#endif
#line 1 "other/io.hpp"
#define FASTIO
#include <unistd.h>
// https://judge.yosupo.jp/submission/21623
namespace fastio {
static constexpr uint32_t SZ = 1 << 17;
char ibuf[SZ];
char obuf[SZ];
char out[100];
// pointer of ibuf, obuf
uint32_t pil = 0, pir = 0, por = 0;
struct Pre {
char num[10000][4];
constexpr Pre() : num() {
for (int i = 0; i < 10000; i++) {
int n = i;
for (int j = 3; j >= 0; j--) {
num[i][j] = n % 10 | '0';
n /= 10;
}
}
}
} constexpr pre;
inline void load() {
memcpy(ibuf, ibuf + pil, pir - pil);
pir = pir - pil + fread(ibuf + pir - pil, 1, SZ - pir + pil, stdin);
pil = 0;
if (pir < SZ) ibuf[pir++] = '\n';
}
inline void flush() {
fwrite(obuf, 1, por, stdout);
por = 0;
}
void rd(char &c) {
do {
if (pil + 1 > pir) load();
c = ibuf[pil++];
} while (isspace(c));
}
void rd(string &x) {
x.clear();
char c;
do {
if (pil + 1 > pir) load();
c = ibuf[pil++];
} while (isspace(c));
do {
x += c;
if (pil == pir) load();
c = ibuf[pil++];
} while (!isspace(c));
}
template <typename T>
void rd_real(T &x) {
string s;
rd(s);
x = stod(s);
}
template <typename T>
void rd_integer(T &x) {
if (pil + 100 > pir) load();
char c;
do
c = ibuf[pil++];
while (c < '-');
bool minus = 0;
if constexpr (is_signed<T>::value || is_same_v<T, i128>) {
if (c == '-') { minus = 1, c = ibuf[pil++]; }
}
x = 0;
while ('0' <= c) { x = x * 10 + (c & 15), c = ibuf[pil++]; }
if constexpr (is_signed<T>::value || is_same_v<T, i128>) {
if (minus) x = -x;
}
}
void rd(int &x) { rd_integer(x); }
void rd(ll &x) { rd_integer(x); }
void rd(i128 &x) { rd_integer(x); }
void rd(u32 &x) { rd_integer(x); }
void rd(u64 &x) { rd_integer(x); }
void rd(u128 &x) { rd_integer(x); }
void rd(double &x) { rd_real(x); }
void rd(long double &x) { rd_real(x); }
void rd(f128 &x) { rd_real(x); }
template <class T, class U>
void rd(pair<T, U> &p) {
return rd(p.first), rd(p.second);
}
template <size_t N = 0, typename T>
void rd_tuple(T &t) {
if constexpr (N < std::tuple_size<T>::value) {
auto &x = std::get<N>(t);
rd(x);
rd_tuple<N + 1>(t);
}
}
template <class... T>
void rd(tuple<T...> &tpl) {
rd_tuple(tpl);
}
template <size_t N = 0, typename T>
void rd(array<T, N> &x) {
for (auto &d: x) rd(d);
}
template <class T>
void rd(vc<T> &x) {
for (auto &d: x) rd(d);
}
void read() {}
template <class H, class... T>
void read(H &h, T &... t) {
rd(h), read(t...);
}
void wt(const char c) {
if (por == SZ) flush();
obuf[por++] = c;
}
void wt(const string s) {
for (char c: s) wt(c);
}
void wt(const char *s) {
size_t len = strlen(s);
for (size_t i = 0; i < len; i++) wt(s[i]);
}
template <typename T>
void wt_integer(T x) {
if (por > SZ - 100) flush();
if (x < 0) { obuf[por++] = '-', x = -x; }
int outi;
for (outi = 96; x >= 10000; outi -= 4) {
memcpy(out + outi, pre.num[x % 10000], 4);
x /= 10000;
}
if (x >= 1000) {
memcpy(obuf + por, pre.num[x], 4);
por += 4;
} else if (x >= 100) {
memcpy(obuf + por, pre.num[x] + 1, 3);
por += 3;
} else if (x >= 10) {
int q = (x * 103) >> 10;
obuf[por] = q | '0';
obuf[por + 1] = (x - q * 10) | '0';
por += 2;
} else
obuf[por++] = x | '0';
memcpy(obuf + por, out + outi + 4, 96 - outi);
por += 96 - outi;
}
template <typename T>
void wt_real(T x) {
ostringstream oss;
oss << fixed << setprecision(15) << double(x);
string s = oss.str();
wt(s);
}
void wt(int x) { wt_integer(x); }
void wt(ll x) { wt_integer(x); }
void wt(i128 x) { wt_integer(x); }
void wt(u32 x) { wt_integer(x); }
void wt(u64 x) { wt_integer(x); }
void wt(u128 x) { wt_integer(x); }
void wt(double x) { wt_real(x); }
void wt(long double x) { wt_real(x); }
void wt(f128 x) { wt_real(x); }
template <class T, class U>
void wt(const pair<T, U> val) {
wt(val.first);
wt(' ');
wt(val.second);
}
template <size_t N = 0, typename T>
void wt_tuple(const T t) {
if constexpr (N < std::tuple_size<T>::value) {
if constexpr (N > 0) { wt(' '); }
const auto x = std::get<N>(t);
wt(x);
wt_tuple<N + 1>(t);
}
}
template <class... T>
void wt(tuple<T...> tpl) {
wt_tuple(tpl);
}
template <class T, size_t S>
void wt(const array<T, S> val) {
auto n = val.size();
for (size_t i = 0; i < n; i++) {
if (i) wt(' ');
wt(val[i]);
}
}
template <class T>
void wt(const vector<T> val) {
auto n = val.size();
for (size_t i = 0; i < n; i++) {
if (i) wt(' ');
wt(val[i]);
}
}
void print() { wt('\n'); }
template <class Head, class... Tail>
void print(Head &&head, Tail &&... tail) {
wt(head);
if (sizeof...(Tail)) wt(' ');
print(forward<Tail>(tail)...);
}
// gcc expansion. called automaticall after main.
void __attribute__((destructor)) _d() { flush(); }
} // namespace fastio
using fastio::read;
using fastio::print;
using fastio::flush;
#define INT(...) \
int __VA_ARGS__; \
read(__VA_ARGS__)
#define LL(...) \
ll __VA_ARGS__; \
read(__VA_ARGS__)
#define U32(...) \
u32 __VA_ARGS__; \
read(__VA_ARGS__)
#define U64(...) \
u64 __VA_ARGS__; \
read(__VA_ARGS__)
#define STR(...) \
string __VA_ARGS__; \
read(__VA_ARGS__)
#define CHAR(...) \
char __VA_ARGS__; \
read(__VA_ARGS__)
#define DBL(...) \
double __VA_ARGS__; \
read(__VA_ARGS__)
#define VEC(type, name, size) \
vector<type> name(size); \
read(name)
#define VV(type, name, h, w) \
vector<vector<type>> name(h, vector<type>(w)); \
read(name)
void YES(bool t = 1) { print(t ? "YES" : "NO"); }
void NO(bool t = 1) { YES(!t); }
void Yes(bool t = 1) { print(t ? "Yes" : "No"); }
void No(bool t = 1) { Yes(!t); }
void yes(bool t = 1) { print(t ? "yes" : "no"); }
void no(bool t = 1) { yes(!t); }
#line 4 "test_atcoder/abc256ex.test.cpp"
#line 2 "ds/fastset.hpp"
// 64-ary tree
// space: (N/63) * u64
struct FastSet {
static constexpr u32 B = 64;
int n, log;
vvc<u64> seg;
FastSet() {}
FastSet(int n) { build(n); }
int size() { return n; }
template <typename F>
FastSet(int n, F f) {
build(n, f);
}
void build(int m) {
seg.clear();
n = m;
do {
seg.push_back(vc<u64>((m + B - 1) / B));
m = (m + B - 1) / B;
} while (m > 1);
log = len(seg);
}
template <typename F>
void build(int n, F f) {
build(n);
FOR(i, n) { seg[0][i / B] |= u64(f(i)) << (i % B); }
FOR(h, log - 1) {
FOR(i, len(seg[h])) {
seg[h + 1][i / B] |= u64(bool(seg[h][i])) << (i % B);
}
}
}
bool operator[](int i) const { return seg[0][i / B] >> (i % B) & 1; }
void insert(int i) {
for (int h = 0; h < log; h++) {
seg[h][i / B] |= u64(1) << (i % B), i /= B;
}
}
void add(int i) { insert(i); }
void erase(int i) {
u64 x = 0;
for (int h = 0; h < log; h++) {
seg[h][i / B] &= ~(u64(1) << (i % B));
seg[h][i / B] |= x << (i % B);
x = bool(seg[h][i / B]);
i /= B;
}
}
void remove(int i) { erase(i); }
// min[x,n) or n
int next(int i) {
assert(i <= n);
chmax(i, 0);
for (int h = 0; h < log; h++) {
if (i / B == seg[h].size()) break;
u64 d = seg[h][i / B] >> (i % B);
if (!d) {
i = i / B + 1;
continue;
}
i += lowbit(d);
for (int g = h - 1; g >= 0; g--) {
i *= B;
i += lowbit(seg[g][i / B]);
}
return i;
}
return n;
}
// max [0,x], or -1
int prev(int i) {
assert(i >= -1);
if (i >= n) i = n - 1;
for (int h = 0; h < log; h++) {
if (i == -1) break;
u64 d = seg[h][i / B] << (63 - i % B);
if (!d) {
i = i / B - 1;
continue;
}
i -= __builtin_clzll(d);
for (int g = h - 1; g >= 0; g--) {
i *= B;
i += topbit(seg[g][i / B]);
}
return i;
}
return -1;
}
bool any(int l, int r) { return next(l) < r; }
// [l, r)
template <typename F>
void enumerate(int l, int r, F f) {
for (int x = next(l); x < r; x = next(x + 1)) f(x);
}
string to_string() {
string s(n, '?');
for (int i = 0; i < n; ++i) s[i] = ((*this)[i] ? '1' : '0');
return s;
}
};
#line 2 "ds/intervals.hpp"
// FastSet で高速化したもの
template <typename T>
struct Intervals_Fast {
const int LLIM, RLIM;
const T none_val;
// none_val でない区間の個数と長さ合計
int total_num;
int total_len;
vc<T> dat;
FastSet ss;
Intervals_Fast(int N, T none_val)
: LLIM(0),
RLIM(N),
none_val(none_val),
total_num(0),
total_len(0),
dat(N, none_val),
ss(N) {
ss.insert(0);
}
// x を含む区間の情報の取得 l, r, t
tuple<int, int, T> get(int x, bool ERASE) {
int l = ss.prev(x);
int r = ss.next(x + 1);
T t = dat[l];
if (t != none_val && ERASE) {
--total_num, total_len -= r - l;
dat[l] = none_val;
merge_at(l);
merge_at(r);
}
return {l, r, t};
}
// [L, R) 内の全データの取得
// f(l,r,x)
template <typename F>
void enumerate_range(int L, int R, F f, bool ERASE) {
assert(LLIM <= L && L <= R && R <= RLIM);
if (L == R) return;
if (!ERASE) {
int l = ss.prev(L);
while (l < R) {
int r = ss.next(l + 1);
f(max(l, L), min(r, R), dat[l]);
l = r;
}
return;
}
// 半端なところの分割
int p = ss.prev(L);
if (p < L) {
ss.insert(L);
dat[L] = dat[p];
if (dat[L] != none_val) ++total_num;
}
p = ss.next(R);
if (R < p) {
dat[R] = dat[ss.prev(R)];
ss.insert(R);
if (dat[R] != none_val) ++total_num;
}
p = L;
while (p < R) {
int q = ss.next(p + 1);
T x = dat[p];
f(p, q, x);
if (dat[p] != none_val) --total_num, total_len -= q - p;
ss.erase(p);
p = q;
}
ss.insert(L);
dat[L] = none_val;
}
void set(int L, int R, T t) {
if (L == R) return;
enumerate_range(
L, R, [](int l, int r, T x) -> void {}, true);
ss.insert(L);
dat[L] = t;
if (t != none_val) total_num++, total_len += R - L;
merge_at(L);
merge_at(R);
}
template <typename F>
void enumerate_all(F f) {
enumerate_range(0, RLIM, f, false);
}
void merge_at(int p) {
if (p <= 0 || RLIM <= p) return;
int q = ss.prev(p - 1);
if (dat[p] == dat[q]) {
if (dat[p] != none_val) --total_num;
ss.erase(p);
}
}
};
// https://codeforces.com/contest/1638/problem/E
// 持つ値のタイプ T、座標タイプ X
// コンストラクタでは T none_val を指定する
template <typename T, typename X = ll>
struct Intervals {
static constexpr X LLIM = -infty<X>;
static constexpr X RLIM = infty<X>;
const T none_val;
// none_val でない区間の個数と長さ合計
int total_num;
X total_len;
map<X, T> dat;
Intervals(T none_val) : none_val(none_val), total_num(0), total_len(0) {
dat[LLIM] = none_val;
dat[RLIM] = none_val;
}
// x を含む区間の情報の取得 l, r, t
tuple<X, X, T> get(X x, bool ERASE) {
auto it2 = dat.upper_bound(x);
auto it1 = prev(it2);
auto [l, tl] = *it1;
auto [r, tr] = *it2;
if (tl != none_val && ERASE) {
--total_num, total_len -= r - l;
dat[l] = none_val;
merge_at(l);
merge_at(r);
}
return {l, r, tl};
}
// [L, R) 内の全データの取得 f(l, r, t)
template <typename F>
void enumerate_range(X L, X R, F f, bool ERASE) {
assert(LLIM <= L && L <= R && R <= RLIM);
if (!ERASE) {
auto it = prev(dat.upper_bound(L));
while ((*it).fi < R) {
auto it2 = next(it);
f(max((*it).fi, L), min((*it2).fi, R), (*it).se);
it = it2;
}
return;
}
// 半端なところの分割
auto p = prev(dat.upper_bound(L));
if ((*p).fi < L) {
dat[L] = (*p).se;
if (dat[L] != none_val) ++total_num;
}
p = dat.lower_bound(R);
if (R < (*p).fi) {
T t = (*prev(p)).se;
dat[R] = t;
if (t != none_val) ++total_num;
}
p = dat.lower_bound(L);
while (1) {
if ((*p).fi >= R) break;
auto q = next(p);
T t = (*p).se;
f((*p).fi, (*q).fi, t);
if (t != none_val) --total_num, total_len -= (*q).fi - (*p).fi;
p = dat.erase(p);
}
dat[L] = none_val;
}
void set(X L, X R, T t) {
assert(L <= R);
if (L == R) return;
enumerate_range(
L, R, [](int l, int r, T x) -> void {}, true);
dat[L] = t;
if (t != none_val) total_num++, total_len += R - L;
merge_at(L);
merge_at(R);
}
template <typename F>
void enumerate_all(F f) {
enumerate_range(LLIM, RLIM, f, false);
}
void merge_at(X p) {
if (p == LLIM || RLIM == p) return;
auto itp = dat.lower_bound(p);
assert((*itp).fi == p);
auto itq = prev(itp);
if ((*itp).se == (*itq).se) {
if ((*itp).se != none_val) --total_num;
dat.erase(itp);
}
}
};
#line 2 "ds/segtree/lazy_segtree.hpp"
template <typename ActedMonoid>
struct Lazy_SegTree {
using AM = ActedMonoid;
using MX = typename AM::Monoid_X;
using MA = typename AM::Monoid_A;
using X = typename MX::value_type;
using A = typename MA::value_type;
int n, log, size;
vc<X> dat;
vc<A> laz;
Lazy_SegTree() {}
Lazy_SegTree(int n) { build(n); }
template <typename F>
Lazy_SegTree(int n, F f) {
build(n, f);
}
Lazy_SegTree(const vc<X>& v) { build(v); }
void build(int m) {
build(m, [](int i) -> X { return MX::unit(); });
}
void build(const vc<X>& v) {
build(len(v), [&](int i) -> X { return v[i]; });
}
template <typename F>
void build(int m, F f) {
n = m, log = 1;
while ((1 << log) < n) ++log;
size = 1 << log;
dat.assign(size << 1, MX::unit());
laz.assign(size, MA::unit());
FOR(i, n) dat[size + i] = f(i);
FOR_R(i, 1, size) update(i);
}
void update(int k) { dat[k] = MX::op(dat[2 * k], dat[2 * k + 1]); }
void set(int p, X x) {
assert(0 <= p && p < n);
p += size;
for (int i = log; i >= 1; i--) push(p >> i);
dat[p] = x;
for (int i = 1; i <= log; i++) update(p >> i);
}
void multiply(int p, const X& x) {
assert(0 <= p && p < n);
p += size;
for (int i = log; i >= 1; i--) push(p >> i);
dat[p] = MX::op(dat[p], x);
for (int i = 1; i <= log; i++) update(p >> i);
}
X get(int p) {
assert(0 <= p && p < n);
p += size;
for (int i = log; i >= 1; i--) push(p >> i);
return dat[p];
}
vc<X> get_all() {
FOR(k, 1, size) { push(k); }
return {dat.begin() + size, dat.begin() + size + n};
}
X prod(int l, int r) {
assert(0 <= l && l <= r && r <= n);
if (l == r) return MX::unit();
l += size, r += size;
for (int i = log; i >= 1; i--) {
if (((l >> i) << i) != l) push(l >> i);
if (((r >> i) << i) != r) push((r - 1) >> i);
}
X xl = MX::unit(), xr = MX::unit();
while (l < r) {
if (l & 1) xl = MX::op(xl, dat[l++]);
if (r & 1) xr = MX::op(dat[--r], xr);
l >>= 1, r >>= 1;
}
return MX::op(xl, xr);
}
X prod_all() { return dat[1]; }
void apply(int l, int r, A a) {
assert(0 <= l && l <= r && r <= n);
if (l == r) return;
l += size, r += size;
for (int i = log; i >= 1; i--) {
if (((l >> i) << i) != l) push(l >> i);
if (((r >> i) << i) != r) push((r - 1) >> i);
}
int l2 = l, r2 = r;
while (l < r) {
if (l & 1) apply_at(l++, a);
if (r & 1) apply_at(--r, a);
l >>= 1, r >>= 1;
}
l = l2, r = r2;
for (int i = 1; i <= log; i++) {
if (((l >> i) << i) != l) update(l >> i);
if (((r >> i) << i) != r) update((r - 1) >> i);
}
}
template <typename F>
int max_right(const F check, int l) {
assert(0 <= l && l <= n);
assert(check(MX::unit()));
if (l == n) return n;
l += size;
for (int i = log; i >= 1; i--) push(l >> i);
X sm = MX::unit();
do {
while (l % 2 == 0) l >>= 1;
if (!check(MX::op(sm, dat[l]))) {
while (l < size) {
push(l);
l = (2 * l);
if (check(MX::op(sm, dat[l]))) { sm = MX::op(sm, dat[l++]); }
}
return l - size;
}
sm = MX::op(sm, dat[l++]);
} while ((l & -l) != l);
return n;
}
template <typename F>
int min_left(const F check, int r) {
assert(0 <= r && r <= n);
assert(check(MX::unit()));
if (r == 0) return 0;
r += size;
for (int i = log; i >= 1; i--) push((r - 1) >> i);
X sm = MX::unit();
do {
r--;
while (r > 1 && (r % 2)) r >>= 1;
if (!check(MX::op(dat[r], sm))) {
while (r < size) {
push(r);
r = (2 * r + 1);
if (check(MX::op(dat[r], sm))) { sm = MX::op(dat[r--], sm); }
}
return r + 1 - size;
}
sm = MX::op(dat[r], sm);
} while ((r & -r) != r);
return 0;
}
private:
void apply_at(int k, A a) {
ll sz = 1 << (log - topbit(k));
dat[k] = AM::act(dat[k], a, sz);
if (k < size) laz[k] = MA::op(laz[k], a);
}
void push(int k) {
if (laz[k] == MA::unit()) return;
apply_at(2 * k, laz[k]), apply_at(2 * k + 1, laz[k]);
laz[k] = MA::unit();
}
};
#line 2 "alg/monoid/add.hpp"
template <typename E>
struct Monoid_Add {
using X = E;
using value_type = X;
static constexpr X op(const X &x, const X &y) noexcept { return x + y; }
static constexpr X inverse(const X &x) noexcept { return -x; }
static constexpr X power(const X &x, ll n) noexcept { return X(n) * x; }
static constexpr X unit() { return X(0); }
static constexpr bool commute = true;
};
#line 2 "alg/monoid/assign.hpp"
template <typename X, int none_val>
struct Monoid_Assign {
using value_type = X;
static X op(X x, X y) { return (y == X(none_val) ? x : y); }
static constexpr X unit() { return X(none_val); }
static constexpr bool commute = false;
};
#line 3 "alg/acted_monoid/sum_assign.hpp"
template <typename E, E none_val>
struct ActedMonoid_Sum_Assign {
using Monoid_X = Monoid_Add<E>;
using Monoid_A = Monoid_Assign<E, none_val>;
using X = typename Monoid_X::value_type;
using A = typename Monoid_A::value_type;
static constexpr X act(const X &x, const A &a, const ll &size) {
if (a == Monoid_A::unit()) return x;
return a * E(size);
}
};
#line 8 "test_atcoder/abc256ex.test.cpp"
void solve() {
LL(N, Q);
VEC(ll, A, N);
Intervals_Fast<int> I(N, 0);
FOR(i, N) I.set(i, i + 1, A[i]);
Lazy_SegTree<ActedMonoid_Sum_Assign<ll, -1>> seg(A);
FOR(Q) {
INT(t, L, R);
--L;
if (t == 2) {
LL(y);
I.set(L, R, y);
seg.apply(L, R, y);
}
if (t == 3) { print(seg.prod(L, R)); }
if (t == 1) {
INT(d);
vc<tuple<int, int, int>> tmp;
I.enumerate_range(
L, R, [&](int l, int r, int x) -> void { tmp.eb(l, r, x / d); },
true);
for (auto&& [l, r, x]: tmp) {
seg.apply(l, r, x);
I.set(l, r, x);
}
}
}
}
signed main() {
solve();
return 0;
}