結果
| 問題 |
No.2498 OX Operations
|
| コンテスト | |
| ユーザー |
Kude
|
| 提出日時 | 2023-10-07 00:49:34 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 1,543 ms / 4,000 ms |
| コード長 | 4,048 bytes |
| コンパイル時間 | 4,702 ms |
| コンパイル使用メモリ | 303,012 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-07-26 17:38:47 |
| 合計ジャッジ時間 | 21,290 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 23 |
コンパイルメッセージ
In file included from /usr/include/atcoder/modint:1,
from /usr/include/atcoder/convolution.hpp:11,
from /usr/include/atcoder/convolution:1,
from /usr/include/atcoder/all:1,
from main.cpp:8:
In member function '{anonymous}::atcoder::static_modint<m, <anonymous> >::mint& {anonymous}::atcoder::static_modint<m, <anonymous> >::operator+=(const mint&) [with int m = 998244353; std::enable_if_t<(1 <= m)>* <anonymous> = 0]',
inlined from 'int main()' at main.cpp:146:41:
/usr/include/atcoder/modint.hpp:75:9: warning: iteration 30 invokes undefined behavior [-Waggressive-loop-optimizations]
75 | _v += rhs._v;
| ^~
main.cpp: In function 'int main()':
main.cpp:12:35: note: within this loop
12 | #define rep(i,n) for(int i = 0; i < (int)(n); i++)
| ^
main.cpp:145:17: note: in expansion of macro 'rep'
145 | rep(i, 2) rep(j, 31) rep(p, 2) rep(q, 2) {
| ^~~
ソースコード
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic warning "-Wunused-function"
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;
using mint = modint998244353;
template <class F, F (*composition)(F, F), F (*id)()> struct dual_segtree {
public:
dual_segtree() : dual_segtree(0) {}
explicit dual_segtree(int n) : dual_segtree(std::vector<F>(n, id())) {}
explicit dual_segtree(const std::vector<F>& v) : _n(int(v.size())) {
auto ceil_log2 = [](int n) {
int x = 0;
while ((1U << x) < (unsigned int)(n)) x++;
return x;
};
log = ceil_log2(_n);
size = 1 << log;
lz = std::vector<F>(2 * size, id());
for (int i = 0; i < _n; i++) lz[size + i] = v[i];
}
void set(int p, F x) {
assert(0 <= p && p < _n);
p += size;
for (int i = log; i >= 1; i--) push(p >> i);
lz[p] = x;
}
F get(int p) {
assert(0 <= p && p < _n);
p += size;
for (int i = log; i >= 1; i--) push(p >> i);
return lz[p];
}
void apply(int p, F f) {
assert(0 <= p && p < _n);
p += size;
for (int i = log; i >= 1; i--) push(p >> i);
lz[p] = composition(f, lz[p]);
}
void apply(int l, int r, F f) {
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);
}
while (l < r) {
if (l & 1) all_apply(l++, f);
if (r & 1) all_apply(--r, f);
l >>= 1;
r >>= 1;
}
}
void push_all() {
for (int i = 1; i < size; i++) push(i);
}
F get_raw(int p) {
assert(0 <= p && p < _n);
return lz[size + p];
}
private:
int _n, size, log;
std::vector<F> lz;
void all_apply(int k, F f) {
lz[k] = composition(f, lz[k]);
}
void push(int k) {
all_apply(2 * k, lz[k]);
all_apply(2 * k + 1, lz[k]);
lz[k] = id();
}
};
struct F {
int a, b;
};
F compositon(F f, F g) {
// fa(gax + gb) + fb
return {f.a & g.a, (f.a & g.b) ^ f.b};
}
F id() {
return {~0, 0};
}
} int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n, q;
cin >> n >> q;
VI m(n);
rep(i, n) cin >> m[i];
dual_segtree<F, compositon, id> seg(n);
rep(_, q) {
char c;
int l, r, x;
cin >> c >> l >> r >> x;
l--;
if (c == 'o') seg.apply(l, r, {~x, x});
else seg.apply(l, r, {~0, x});
}
vector<mint> cnt(31, 1);
rep(i, n) {
auto [a, b] = seg.get(i);
int x = b, y = a ^ b;
mint f[2][31];
f[0][0] = 1;
int k = m[i];
rep(_, 31) {
mint g[2][2];
g[0][x & 1] = 1;
g[1][y & 1] = 1;
mint nf[4][31];
rep(i, 2) rep(j, 31) rep(p, 2) rep(q, 2) {
nf[i+p][j+q] += f[i][j] * g[p][q];
}
rrep(i, 3) rep(j, 31) nf[i+1][j] += nf[i][j];
rep(i, 4) if ((i & 1) == (k & 1)) rep(j, 31) {
f[i >> 1][j] = nf[i][j];
}
x >>= 1, y >>= 1, k >>= 1;
}
rep(j, 30) f[0][j+1] += f[0][j];
rep(j, 31) cnt[j] *= f[0][j];
}
rrep(j, 30) cnt[j+1] -= cnt[j];
mint ans;
rep(j, 31) ans += j * cnt[j];
cout << ans.val() << '\n';
}
Kude