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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#118752 | #1913. Non-Decreasing Subsequences | pandapythoner# | Compile Error | / | / | C++20 | 3.3kb | 2023-07-04 00:13:13 | 2024-05-31 18:55:44 |
Judging History
你现在查看的是最新测评结果
- [2024-05-31 18:55:44]
- 评测
- 测评结果:Compile Error
- 用时:0ms
- 内存:0kb
- [2023-08-10 23:21:45]
- System Update: QOJ starts to keep a history of the judgings of all the submissions.
- [2023-07-04 00:13:13]
- 提交
answer
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx,avx2,fma")
// #define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ll long long
#define flt double
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
mt19937 rnd(234);
const ll inf = 1e18;
const ll mod = 1e9 + 7;
struct query {
int l, r;
int i;
};
int n, k;
vector<int> a;
int q;
vector<query> t;
vector<ll> rs;
vector<vector<ll>> b;
void solve(int tl, int tr, vector<query> &t) {
if (t.empty()) {
return;
}
if (tl == tr) {
for (auto [l, r, i] : t) {
rs[i] = 2;
}
return;
}
bool interesting_asks = false;
int tm = (tl + tr) / 2;
for (auto [l, r, i] : t) {
if (r <= tm) {
} else if (tm + 1 <= l) {
} else {
interesting_asks = true;
}
}
if (interesting_asks) {
vector<vector<ll>> dp(k, vector<ll>(k, 0));
vector<ll> aboba(k);
for (int i = tm; i >= tl; i -= 1) {
ll f = a[i];
for (int x = f; x < k; x += 1) {
for (int y = f; y <= x; y += 1) {
dp[x][f] += dp[x][y];
}
dp[x][f] %= mod;
}
dp[f][f] = (dp[f][f] + 1) % mod;
for (ll x = 0; x < k; x += 1) {
aboba[x] = 0;
for (ll y = 0; y < k; y += 1) {
aboba[x] += dp[x][y];
}
aboba[x] %= mod;
}
b[i] = aboba;
}
dp.assign(k, vector<ll>(k));
for (int i = tm + 1; i <= tr; i += 1) {
ll f = a[i];
for (int x = f; x >= 0; x -= 1) {
for (int y = f; y >= x; y -= 1) {
dp[x][f] = (dp[x][f] + dp[x][y]) % mod;
}
}
dp[f][f] = (dp[f][f] + 1) % mod;
for (ll x = 0; x < k; x += 1) {
aboba[x] = 0;
for (ll y = 0; y < k; y += 1) {
aboba[x] += dp[x][y];
}
aboba[x] %= mod;
}
b[i] = aboba;
}
}
vector<query> tlft, trght;
for (auto [l, r, i] : t) {
if (r <= tm) {
tlft.push_back(query{l, r, i});
} else if (tm + 1 <= l) {
trght.push_back(query{l, r, i});
} else {
ll ans = 1;
ll sm = 0;
for (int j = 0; j < k; j += 1) {
sm = (sm + b[l][j]) % mod;
ans = (ans + sm * b[r][j] + b[l][j] + b[r][j]) % mod;
}
rs[i] = ans;
}
}
solve(tl, tm, tlft);
solve(tm + 1, tr, trght);
}
int32_t main() {
if (1) {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
}
cin >> n >> k;
a.resize(n);
for (int i = 0; i < n; i += 1) {
cin >> a[i];
--a[i];
}
cin >> q;
t.resize(q);
for (int i = 0; i < q; i += 1) {
int l, r;
cin >> l >> r;
--l;
--r;
t[i] = query{l, r, i};
}
rs.assign(q, 0);
b.resize(n);
solve(0, n - 1, t);
for (auto x : rs) {
cout << x << "\n";
}
return 0;
}
详细
In file included from /usr/include/c++/13/string:43, from /usr/include/c++/13/bitset:52, from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:52, from answer.code:6: /usr/include/c++/13/bits/allocator.h: In destructor ‘constexpr std::_Vector_base<long long int, std::allocator<long long int> >::_Vector_impl::~_Vector_impl()’: /usr/include/c++/13/bits/allocator.h:184:7: error: inlining failed in call to ‘always_inline’ ‘constexpr std::allocator< <template-parameter-1-1> >::~allocator() noexcept [with _Tp = long long int]’: target specific option mismatch 184 | ~allocator() _GLIBCXX_NOTHROW { } | ^ In file included from /usr/include/c++/13/vector:66, from /usr/include/c++/13/functional:64, from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:53: /usr/include/c++/13/bits/stl_vector.h:133:14: note: called from here 133 | struct _Vector_impl | ^~~~~~~~~~~~