結果

問題 No.1099 Range Square Sum
ユーザー kcvlex
提出日時 2020-06-26 23:07:34
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 491 ms / 2,000 ms
コード長 10,134 bytes
コンパイル時間 1,763 ms
コンパイル使用メモリ 148,548 KB
最終ジャッジ日時 2025-01-11 12:06:56
ジャッジサーバーID
(参考情報)
judge4 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 30
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <limits>
#include <initializer_list>
#include <utility>
#include <bitset>
#include <tuple>
#include <type_traits>
#include <functional>
#include <string>
#include <array>
#include <deque>
#include <list>
#include <queue>
#include <stack>
#include <vector>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <iterator>
#include <algorithm>
#include <complex>
#include <random>
#include <numeric>
#include <iostream>
#include <iomanip>
#include <sstream>
#include <regex>
#include <cassert>
#include <cstddef>
#ifdef CPP17
#include <variant>
#endif
#define endl codeforces
#define ALL(v) std::begin(v), std::end(v)
#define ALLR(v) std::rbegin(v), std::rend(v)
using ll = std::int64_t;
using ull = std::uint64_t;
using pii = std::pair<int, int>;
using tii = std::tuple<int, int, int>;
using pll = std::pair<ll, ll>;
using tll = std::tuple<ll, ll, ll>;
using size_type = ssize_t;
template <typename T> using vec = std::vector<T>;
template <typename T> using vvec = vec<vec<T>>;
template <typename T> const T& var_min(const T &t) { return t; }
template <typename T> const T& var_max(const T &t) { return t; }
template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return std::min(t, var_min(tail...)); }
template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return std::max(t, var_max(tail...)); }
template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); }
template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); }
template <typename T, std::size_t Head, std::size_t... Tail>
struct multi_dim_array { using type = std::array<typename multi_dim_array<T, Tail...>::type, Head>; };
template <typename T, std::size_t Head>
struct multi_dim_array<T, Head> { using type = std::array<T, Head>; };
template <typename T, std::size_t... Args> using mdarray = typename multi_dim_array<T, Args...>::type;
#ifdef CPP17
template <typename T, typename F, typename... Args>
void fill_seq(T &t, F f, Args... args) {
if constexpr (std::is_invocable<F, Args...>::value) {
t = f(args...);
} else {
for (size_type i = 0; i < t.size(); i++) fill_seq(t[i], f, args..., i);
}
}
#endif
template <typename T> vec<T> make_v(size_type sz) { return vec<T>(sz); }
template <typename T, typename... Tail>
auto make_v(size_type hs, Tail&&... ts) {
auto v = std::move(make_v<T>(std::forward<Tail>(ts)...));
return vec<decltype(v)>(hs, v);
}
namespace init__ {
struct InitIO {
InitIO() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(30); }
} init_io;
}
namespace utility {
template <typename T>
using validate_integer = typename std::enable_if<std::is_integral<T>::value, ll>::type;
template <typename T>
auto popcount(T n) -> validate_integer<T> {
return __builtin_popcount(n);
}
// 0 indexed
template <typename T>
auto msb(T n) -> validate_integer<T> {
return 64 - __builtin_clzll(n) - 1;
}
template <typename T>
constexpr auto ceil_pow2(T s) -> validate_integer<T> {
ll ret = 1;
while (ret < s) ret *= 2;
return ret;
}
}
namespace utility {
struct has_id_ele {
template <typename T>
auto operator ()(T &&t) -> decltype(T(), std::true_type()) { return std::true_type(); }
std::false_type operator ()(...) { return std::false_type(); }
};
struct has_merge {
template <typename T>
auto operator ()(T &&t) -> decltype(T::merge(std::declval<T>(), std::declval<T>()), std::true_type()) { return std::true_type(); }
std::false_type operator ()(...) { return std::false_type(); }
};
struct has_apply {
template <typename M, typename Op>
auto operator ()(M &&m, Op &&op) -> decltype(m.apply(op), std::true_type()) { return std::true_type(); }
std::false_type operator ()(...) { return std::false_type(); }
};
template <typename F, typename... Args>
using callable = std::is_same<typename std::invoke_result<F, Args...>::type, std::true_type>;
template <typename M>
using is_monoid = std::conjunction<
callable<has_id_ele, M>, callable<has_merge, M>>;
template <typename M, typename Op>
using enable_apply = callable<has_apply, M, Op>;
}
namespace segtree {
template <typename M, typename Op>
class LazySegmentTree {
static_assert(utility::is_monoid<M>::value, "M must be monoid.");
static_assert(utility::is_monoid<Op>::value, "Op must be monoid.");
static_assert(utility::enable_apply<M, Op>::value, "Op is not operator of M.");
struct segment {
M m;
Op op;
bool has_lazy;
segment(M m = M()) : m(m), op(Op()), has_lazy(false) { }
void update_op(Op o) {
m.apply(o);
op = Op::merge(op, o);
has_lazy = true;
}
void init_op() {
op = Op();
has_lazy = false;
}
};
size_type height;
void push(size_type idx) {
auto &s = segs[idx];
if (!s.has_lazy) return;
for (int i = 0; i < 2; i++) {
auto cidx = 2 * idx + i;
if (segs.size() <= cidx) break;
auto &cs = segs[cidx];
cs.update_op(s.op);
}
s.init_op();
}
void propagate_from_top(size_type idx) {
for (int i = height; 1 <= i; i--) push(idx >> i);
}
void update_from_bottom(size_type idx) {
while (true) {
auto pidx = idx / 2;
if (pidx == 0) break;
size_type c0 = 2 * pidx + 0,
c1 = 2 * pidx + 1;
push(c0); push(c1);
segs[pidx].m = M::merge(segs[c0].m, segs[c1].m);
idx = pidx;
}
}
size_type get_endpoint_seg(size_type i) {
i += size();
return i / (i & -i);
}
public:
vec<segment> segs;
template <typename F>
LazySegmentTree(F f, size_type sz) {
size_type sz2 = utility::ceil_pow2(sz);
segs.resize(sz2 * 2);
height = utility::msb(sz2);
for (size_type i = 0; i < sz; i++) segs[i + sz2] = f(i);
for (size_type i = sz2 - 1; 1 <= i; i--) segs[i] = M::merge(segs[2 * i].m, segs[2 * i + 1].m);
}
template <typename T>
LazySegmentTree(const vec<T> &v)
: LazySegmentTree([&](size_type i) { return v[i]; }, v.size()) { }
size_type size() const {
return segs.size() / 2;
}
template <typename T>
void update_query(size_type ql, size_type qr, const T &t) {
Op op(t);
auto l0 = get_endpoint_seg(ql);
auto r0 = get_endpoint_seg(qr);
propagate_from_top(l0);
propagate_from_top(r0);
size_type lnode = ql + size(), rnode = qr + size();
while (lnode < rnode) {
if (lnode & 1) {
segs[lnode].update_op(op);
push(lnode);
lnode++;
}
if (rnode & 1) {
rnode--;
segs[rnode].update_op(op);
push(rnode);
}
lnode /= 2;
rnode /= 2;
}
update_from_bottom(l0);
update_from_bottom(r0);
}
M get_query(ll ql, ll qr) {
auto ret = M();
auto l0 = get_endpoint_seg(ql);
auto r0 = get_endpoint_seg(qr);
propagate_from_top(l0);
propagate_from_top(r0);
size_type lnode = ql + size(), rnode = qr + size();
while (lnode < rnode) {
if (lnode & 1) {
push(lnode);
ret = M::merge(segs[lnode].m, ret);
lnode++;
}
if (rnode & 1) {
rnode--;
push(rnode);
ret = M::merge(ret, segs[rnode].m);
}
lnode /= 2;
rnode /= 2;
}
return ret;
}
};
}
using i128 = __int128_t;
std::istream& operator >>(std::istream &is, i128 &n) {
std::string s;
std::cin >> s;
n = 0;
bool minus = false;
for (char c : s) {
if (c == '-') {
minus = true;
continue;
}
n = n * 10 + (c - '0');
}
if (minus) n *= -1;
return is;
}
std::ostream& operator <<(std::ostream &os, i128 n) {
char buf[50] = { };
int idx = 0;
bool minus = false;
if (n < 0) {
minus = true;
buf[idx++] = '-';
n *= -1;
}
for (; n; n /= 10, idx++) buf[idx] = static_cast<char>('0' + (n % 10));
std::reverse(buf + minus, buf + idx);
std::cout << buf;
return os;
}
const i128 inf = 5e15;
struct Op {
i128 v;
Op(i128 v) : v(v) { }
Op() : Op(0) { }
static Op merge(Op a, Op b) {
return Op(a.v + b.v);
}
};
struct M {
i128 sum, msum, l, r;
M(i128 sum, i128 msum, i128 l, i128 r) : sum(sum), msum(msum), l(l), r(r) { }
M() : M(0, 0, inf, -inf) { }
static M merge(M a, M b) {
i128 sum = a.sum + b.sum;
i128 msum = a.sum * b.sum * 2 + a.msum + b.msum;
i128 l = std::min(a.l, b.l);
i128 r = std::max(a.r, b.r);
return M(sum, msum, l, r);
}
void apply(Op o) {
if (l == inf) return;
i128 cnt = r - l;
msum += o.v * o.v * cnt * (cnt - 1);
msum += sum * (cnt - 1) * 2 * o.v;
sum += cnt * o.v;
}
};
int main() {
i128 n;
std::cin >> n;
vec<i128> av(n);
for (i128 &e : av) std::cin >> e;
i128 q;
std::cin >> q;
segtree::LazySegmentTree<M, Op> segs([&](i128 i) { return M(av[i], 0, i, i + 1); }, n);
while (q--) {
i128 t, l, r;
std::cin >> t >> l >> r;
l--;
if (t == 1) {
i128 x;
std::cin >> x;
segs.update_query(l, r, Op(x));
} else {
auto m = segs.get_query(l, r);
i128 sum = m.sum, msum = m.msum;
std::cout << sum * sum - msum << "\n";
}
#if 0
{
for(i128 i=0;i<n;i++)segs.get_query(i,i+1);
auto &tmp = segs.segs;
}
#endif
}
return 0;
}
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