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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 |
---|---|---|---|---|---|---|---|---|---|
#726649 | #8338. Quad Kingdoms Chess | beamishboys | WA | 738ms | 60412kb | C++20 | 9.6kb | 2024-11-09 05:03:56 | 2024-11-09 05:03:56 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
/* Macros {{{ */
/* A lot of this is from some of Benq's submissions
[https://codeforces.com/profile/Benq]
Ugly af to the eyes, but with vim fold its barable
Hopefully c++20 concepts can make all this stuff must cleaner */
/* Basics {{{ */
using ll = long long;
using ld = long double;
using str = string;
using pi = pair<int, int>;
using pll = pair<ll, ll>;
using pld = pair<ld, ld>;
#define mp make_pair
#define fi first
#define se second
#define arr array
#define ve vector
using vi = vector<int>;
using vll = vector<ll>;
using vld = vector<ld>;
using vpi = vector<pi>;
using vpll = vector<pll>;
using vpld = vector<pld>;
using vvi = vector<vi>;
using vvll = vector<vll>;
using vvld = vector<vld>;
using vvpi = vector<vpi>;
using vvpll = vector<vpll>;
using vvpld = vector<vpld>;
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define sz size()
#define rsz(a) resize(a)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define For(i, a, b) for (int i = a; i < b; ++i)
#define Rof(i, a, b) for (int i = (b)-1; i >= (a); --i)
#define rep(a) For(_, 0, a)
#define each(a, x) for (auto &a : x)
#define reach(a, x) for (auto a = x.rbegin(); a != x.rend(); ++a)
template <typename T, typename U>
inline void cmin(T &x, U y) {
if (y < x) x = y;
}
template <typename T, typename U>
inline void cmax(T &x, U y) {
if (x < y) x = y;
}
/*}}}*/
/* IO {{{ */
/* Template Macros {{{ */
#define tcT template <class T
#define tcTU tcT, class U
#define tcTUU tcT, class... U
/*}}}*/
inline namespace Helpers { /*{{{*/
tcT, class = void > struct is_iterable : false_type {};
tcT > struct is_iterable<
T, void_t<decltype(begin(declval<T>())), decltype(end(declval<T>()))>>
: true_type {};
tcT > constexpr bool is_iterable_v = is_iterable<T>::value;
tcT, class = void > struct is_readable : false_type {};
tcT > struct is_readable<T, typename std::enable_if_t<is_same_v<
decltype(cin >> declval<T &>()), istream &>>>
: true_type {};
tcT > constexpr bool is_readable_v = is_readable<T>::value;
tcT, class = void > struct is_printable : false_type {};
tcT > struct is_printable<T, typename std::enable_if_t<is_same_v<
decltype(cout << declval<T>()), ostream &>>>
: true_type {};
tcT > constexpr bool is_printable_v = is_printable<T>::value;
} /* namespace Helpers */
/*}}}*/
inline namespace Input { /*{{{*/
tcT > constexpr bool needs_input_v = !is_readable_v<T> && is_iterable_v<T>;
tcTUU > void re(T &t, U &...u);
tcTU > void re(pair<T, U> &p); /* pairs */
/* re: read{{{ */
tcT > typename enable_if<is_readable_v<T>, void>::type re(T &x) {
cin >> x;
} /* default */
tcT > typename enable_if<needs_input_v<T>, void>::type re(
T &i); // vectors, arrays, etc...
tcTU > void re(pair<T, U> &p) { re(p.fi, p.se); } // pairs
tcT > typename enable_if<needs_input_v<T>, void>::type re(T &i) {
each(x, i) re(x);
}
tcTUU > void re(T &t, U &...u) {
re(t);
re(u...);
} /* read multiple}}} */
/* rv: resize and read vectors{{{ */
void rv(size_t) {}
tcTUU > void rv(size_t N, ve<T> &t, U &...u);
template <class... U>
void rv(size_t, size_t N2, U &...u);
tcTUU > void rv(size_t N, ve<T> &t, U &...u) {
t.rsz(N);
re(t);
rv(N, u...);
}
template <class... U>
void rv(size_t, size_t N2, U &...u) {
rv(N2, u...);
} /*}}}*/
/* dumb shortcuts to read in ints{{{ */
void decrement() {} /* subtract one from each */
tcTUU > void decrement(T &t, U &...u) {
--t;
decrement(u...);
}
#define ints(...) \
int __VA_ARGS__; \
re(__VA_ARGS__);
#define int1(...) \
ints(__VA_ARGS__); \
decrement(__VA_ARGS__); /*}}}*/
} /* namespace Input */
/*}}}*/
inline namespace ToString { /*{{{*/
tcT > constexpr bool needs_output_v = !is_printable_v<T> && is_iterable_v<T>;
/* ts: string representation to print */
tcT > typename enable_if<is_printable_v<T>, str>::type ts(T v) {
stringstream ss;
ss << fixed << setprecision(15) << v;
return ss.str();
} /* default */
tcT > str bit_vec(T t) { /* bit vector to string */
str res = "{";
For(i, 0, t.sz) res += ts(t[i]);
res += "}";
return res;
}
str ts(ve<bool> v) { return bit_vec(v); }
template <size_t SZ>
str ts(bitset<SZ> b) {
return bit_vec(b);
} /* bit vector */
tcTU > str ts(pair<T, U> p); /* pairs */
tcT > typename enable_if<needs_output_v<T>, str>::type ts(
T v); /* vectors, arrays */
tcTU > str ts(pair<T, U> p) { return "(" + ts(p.fi) + ", " + ts(p.se) + ")"; }
tcT > typename enable_if<is_iterable_v<T>, str>::type ts_sep(T v, str sep) {
/* convert container to string w/ separator sep */
bool fst = 1;
str res = "";
for (const auto &x : v) {
if (!fst) res += sep;
fst = 0;
res += ts(x);
}
return res;
}
tcT > typename enable_if<needs_output_v<T>, str>::type ts(T v) {
return "{" + ts_sep(v, ", ") + "}";
}
/* for nested DS */
template <int, class T>
typename enable_if<!needs_output_v<T>, ve<str>>::type ts_lev(const T &v) {
return {ts(v)};
}
template <int lev, class T>
typename enable_if<needs_output_v<T>, ve<str>>::type ts_lev(const T &v) {
if (lev == 0 || !v.sz) return {ts(v)};
ve<str> res;
for (const auto &t : v) {
if (res.sz) res.back() += ",";
ve<str> tmp = ts_lev<lev - 1>(t);
res.insert(end(res), all(tmp));
}
For(i, 0, res.sz) {
str bef = " ";
if (i == 0) bef = "{";
res[i] = bef + res[i];
}
res.back() += "}";
return res;
}
} /* namespace ToString */
/*}}}*/
inline namespace Output { /*{{{*/
template <class T>
void pr_sep(ostream &os, str, const T &t) {
os << ts(t);
}
template <class T, class... U>
void pr_sep(ostream &os, str sep, const T &t, const U &...u) {
pr_sep(os, sep, t);
os << sep;
pr_sep(os, sep, u...);
}
/* print w/ no spaces */
template <class... T>
void pr(const T &...t) {
pr_sep(cout, "", t...);
}
/* print w/ spaces, end with newline */
void ps() { cout << "\n"; }
template <class... T>
void ps(const T &...t) {
pr_sep(cout, " ", t...);
ps();
}
/* debug to cerr */
template <class... T>
void dbg_out(const T &...t) {
pr_sep(cerr, " | ", t...);
cerr << endl;
}
void loc_info(int line, str names) {
cerr << "Line(" << line << ") -> [" << names << "]: ";
}
template <int lev, class T>
void dbgl_out(const T &t) {
cerr << "\n\n" << ts_sep(ts_lev<lev>(t), "\n") << "\n" << endl;
}
} /* namespace Output */
/*}}}}}}}}}*/
int n1, n2, m;
vi a, b;
ve<arr<int, 3>> upd;
int const Mod = 1e9+7;
vll rands;
struct SQRT {
int n;
int num_bkt;
int bkt_sz;
vvi buckets;
vvll hvs;
vvi sfx_mx;
void init_hv(int bkt) {
hvs[bkt].clear();
stack<pair<int, ll>> stak;
stak.push({ INT_MAX, 1 });
for(int i=0; i<buckets[bkt].size(); ++i) {
int v = buckets[bkt][i];
while(stak.top().fi < v) stak.pop();
hvs[bkt].pb(stak.top().se * rands[v] % Mod);
}
sfx_mx[bkt].assign(all(buckets[bkt]));
for(int i=(sfx_mx[bkt].sz-2); i>=0; --i) cmax(sfx_mx[bkt][i],sfx_mx[bkt][i+1]);
}
SQRT(vi vals) {
n = vals.sz;
bkt_sz = ceil(sqrt(n));
num_bkt = (n+bkt_sz-1)/bkt_sz;
buckets = vvi();
hvs.assign(num_bkt, vll());
sfx_mx.assign(num_bkt, vi());
for( int i=0; i < n; i+=bkt_sz ) {
buckets.pb(vi());
for(int j=0; j < bkt_sz && j+i < n; ++j) buckets.back().pb(vals[i+j]);
}
for(int i=0; i<buckets.sz;++i) init_hv(i);
}
void make_update(int index, int nv) {
int bkt = index/bkt_sz;
int i = index%bkt_sz;
buckets[bkt][i] = nv;
init_hv(bkt);
}
ll query_hsh() {
int cur_mx = -1;
ll cur_hsh = 1;
for(int bkt=num_bkt-1; bkt>=0; --bkt) {
if(cur_mx > sfx_mx[bkt][0]) continue;
int l = 0, r = sfx_mx[bkt].sz-1;
while(l < r) {
int m = (l+r+1)/2;
if(sfx_mx[bkt][m] < cur_mx) r = m-1;
else l = m;
}
cur_hsh = cur_hsh * hvs[bkt][l] % Mod;
cmax(cur_mx, sfx_mx[bkt][0]);
}
return cur_hsh;
}
};
void solve() {
re(n1), rv(n1, a), re(n2), rv(n2, b), re(m), rv(m, upd);
rands.assign(1e6, 0);
srand(time(NULL));
set<ll> seen;
for(auto &v : rands) {
v = (rand() % Mod) + 1;
while( seen.count(v) ) v = (rand() % Mod) + 1;
seen.insert(v);
}
SQRT sqa = SQRT(a);
SQRT sqb = SQRT(b);
for(auto [a, b, c] : upd) {
if(a == 1) sqa.make_update(b-1, c);
if(a == 2) sqb.make_update(b-1, c);
if(sqa.query_hsh() == sqb.query_hsh()) {
ps("YES");
} else {
ps("NO");
}
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
/* cout << fixed << setprecision(6); */
int t = 1;
// cin >> t;
for (int i = 0; i < t; i++) solve();
return 0;
// you should actually read the stuff at the bottom
}
/* stuff you should look for
* int overflow, array bounds
* special cases (n=1?)
* do smth instead of nothing and stay organized
* WRITE STUFF DOWN
* DON'T GET STUCK ON ONE APPROACH
*/
详细
Test #1:
score: 100
Accepted
time: 707ms
memory: 57876kb
input:
5 1 2 3 4 5 5 5 4 3 2 1 8 1 1 5 1 4 2 1 2 4 1 5 1 1 5 5 2 1 4 2 3 5 2 5 5
output:
NO NO NO YES NO NO NO YES
result:
ok 8 tokens
Test #2:
score: -100
Wrong Answer
time: 738ms
memory: 60412kb
input:
1 2 6 2 1 1 1 1 1 200000 2 6 2 1 1 1 1 1 1 1 1 2 2 1 1 1 1 2 1 1 1 2 4 1 2 1 2 1 1 1 1 1 2 2 5 1 1 1 1 1 1 2 1 1 1 2 6 1 1 1 2 1 1 2 1 1 2 2 3 1 1 1 1 2 1 1 2 6 2 1 1 2 2 4 1 1 1 2 2 6 1 1 1 2 1 1 1 2 5 2 2 6 2 1 1 1 2 4 2 2 5 2 2 6 2 1 1 1 2 5 1 2 6 2 1 1 2 1 1 1 1 1 1 2 4 1 1 1 2 1 1 2 1 1 2 2 3 2...
output:
NO NO NO NO YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES NO NO NO YES NO NO NO NO NO NO NO NO YES NO NO NO YES YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO...
result:
wrong answer 30th words differ - expected: 'NO', found: 'YES'