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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 |
---|---|---|---|---|---|---|---|---|---|
#429904 | #8770. Comparator | skittles1412# | AC ✓ | 237ms | 9048kb | C++17 | 11.2kb | 2024-06-03 02:28:53 | 2024-06-03 02:28:55 |
Judging History
answer
// cf bits/extc++.h nonsense
#ifdef ONLINE_JUDGE
#define _EXT_CODECVT_SPECIALIZATIONS_H 1
#define _EXT_ENC_FILEBUF_H 1
#endif
#line 1 "c.cpp"
// 69683a8183e36171b0123a3fbef815656276c8d9
#include "bits/extc++.h"
#line 1 "/home/skittles1412/workspace/cp/library/template.hpp"
#line 5 "/home/skittles1412/workspace/cp/library/template.hpp"
using namespace std;
template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
cerr << t;
((cerr << " | " << u), ...);
cerr << endl;
}
#ifdef DEBUG
#define dbg(...) \
cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
<< ": "; \
dbgh(__VA_ARGS__)
#else
#define cerr \
if (false) \
cerr
#define dbg(...)
#endif
using u32 = uint32_t;
using u64 = uint64_t;
using ld = long double;
#define endl "\n"
#define long int64_t
#define sz(x) int(std::size(x))
#line 1 "/home/skittles1412/workspace/cp/library/utils.hpp"
#line 5 "/home/skittles1412/workspace/cp/library/utils.hpp"
template <typename T>
ostream& operator<<(ostream& out, const vector<T>& arr) {
out << "[";
for (int i = 0; i < sz(arr); i++) {
if (i) {
out << ", ";
}
out << arr[i];
}
return out << "]";
}
template <typename T, size_t N>
ostream& operator<<(ostream& out, const array<T, N>& arr) {
out << "[";
for (size_t i = 0; i < N; i++) {
if (i) {
out << ", ";
}
out << arr[i];
}
return out << "]";
}
template <typename A, typename B>
ostream& operator<<(ostream& out, const pair<A, B>& p) {
return out << "(" << p.first << ", " << p.second << ")";
}
/**
* Computes the first x in [l, r) such that cb(x) is true.
*
* If no x in that range is true, returns r
*/
template <typename T, typename Cb>
T first_true(T l, T r, const Cb& cb) {
while (l < r) {
T mid = (l + r) / 2;
if (cb(mid)) {
r = mid;
} else {
l = mid + 1;
}
}
return l;
}
/**
* Computes the last x in (l, r] such that cb(x) is true.
*
* If no x in that range is true, returns l
*/
template <typename T, typename Cb>
T last_true(T l, T r, const Cb& cb) {
while (l < r) {
T mid = (l + r + 1) / 2;
if (cb(mid)) {
l = mid;
} else {
r = mid - 1;
}
}
return l;
}
template <typename T>
T reversed(T arr) {
reverse(begin(arr), end(arr));
return arr;
}
template <typename T>
bool is_palin(const T& arr) {
return arr == reversed(arr);
}
template <typename T>
T sorted(T arr) {
sort(begin(arr), end(arr));
return arr;
}
template <typename T>
T negated(T arr) {
for (auto& a : arr) {
a = -a;
}
return arr;
}
template <typename T, bool STRICT>
vector<int> comp_prev_helper(const vector<T>& arr) {
int n = sz(arr);
vector<int> ans(n);
vector<pair<int, int>> st;
for (int i = 0; i < n; i++) {
auto cmp = [&]() -> bool {
if constexpr (STRICT) {
return st.back().first <= arr[i];
} else {
return st.back().first < arr[i];
}
};
while (sz(st) && cmp()) {
st.pop_back();
}
if (sz(st)) {
ans[i] = st.back().second;
} else {
ans[i] = -1;
}
st.emplace_back(arr[i], i);
}
return ans;
}
/**
* Computes ans[i], the closest index j to the left of i where arr[j] > arr[i]
*
* ans[i] = -1 if no such j exists
*/
template <typename T>
vector<int> comp_prev_gt(const vector<T>& arr) {
return comp_prev_helper<T, true>(arr);
}
/**
* Computes ans[i], the closest index j to the left of i where arr[j] >= arr[i]
*
* ans[i] = -1 if no such j exists
*/
template <typename T>
vector<int> comp_prev_ge(const vector<T>& arr) {
return comp_prev_helper<T, false>(arr);
}
/**
* reverses an array of indices
*
* specifically, it reverses the array and computes arr[i] = n - 1 - arr[i]
*/
vector<int> reverse_indices(vector<int> arr) {
int n = sz(arr);
reverse(begin(arr), end(arr));
for (auto& a : arr) {
a = n - 1 - a;
}
return arr;
}
/**
* Computes ans[i], the closest index j to the right of i where arr[j] > arr[i]
*
* ans[i] = n if no such j exists
*/
template <typename T>
vector<int> comp_next_gt(vector<T> arr) {
reverse(begin(arr), end(arr));
return reverse_indices(comp_prev_gt(arr));
}
/**
* Computes ans[i], the closest index j to the right of i where arr[j] >= arr[i]
*
* ans[i] = n if no such j exists
*/
template <typename T>
vector<int> comp_next_ge(vector<T> arr) {
reverse(begin(arr), end(arr));
return reverse_indices(comp_prev_ge(arr));
}
template <typename Cb>
struct CmpByKey {
Cb cb;
explicit CmpByKey(const Cb& cb) : cb(cb) {}
template <typename T>
bool operator()(const T& a, const T& b) const {
return cb(a) < cb(b);
}
};
/**
* outputs will be in the range [0, m), returns m
*/
int coord_comp(const vector<int*>& arr) {
vector<int> vals;
for (auto& a : arr) {
vals.push_back(*a);
}
sort(begin(vals), end(vals));
vals.erase(unique(begin(vals), end(vals)), end(vals));
for (auto& a : arr) {
*a = int(lower_bound(begin(vals), end(vals), *a) - begin(vals));
}
return sz(vals);
}
/**
* outputs will be in the range [0, m), returns {m, result}
*/
template <typename T>
pair<int, vector<int>> coord_comp(const vector<T>& arr) {
vector<T> vals = arr;
sort(begin(vals), end(vals));
vals.erase(unique(begin(vals), end(vals)), end(vals));
vector<int> ans;
for (auto& a : arr) {
ans.push_back(
int(lower_bound(begin(vals), end(vals), a) - begin(vals)));
}
return {sz(vals), ans};
}
template <typename T>
bool on(T mask, int bit) {
return (mask >> bit) & 1;
}
#line 5 "c.cpp"
struct Paren {
int n;
vector<pair<int, int>> parens;
vector<int> paren_id;
Paren(const string& s) : n(sz(s)), paren_id(n, -1) {
vector<int> st;
for (int i = 0; i < n; i++) {
if (s[i] == '(') {
st.push_back(paren_id[i] = sz(parens));
parens.emplace_back(i, -1);
} else if (s[i] == ')') {
parens[paren_id[i] = st.back()].second = i;
st.pop_back();
}
}
}
int rparen_for(int ind) const {
return parens[paren_id[ind]].second;
}
int lparen_for(int ind) const {
return parens[paren_id[ind]].first;
}
};
// ^ then | then & then = then ! then ()
struct Eval {
string s;
const Paren& p;
int x, y;
Eval(const string& s, const Paren& p, int x, int y)
: s(s), p(p), x(x), y(y) {}
int eval(int l, int r) const {
while (s[l] == '(' && p.rparen_for(l) == r) {
l++;
r--;
}
if (l == r) {
if (s[l] == 'x') {
return x;
} else if (s[l] == 'y') {
return y;
} else if (s[l] == '0') {
return 0;
} else if (s[l] == '1') {
return 1;
}
assert(false);
}
return eval_xor(l, r);
}
template <typename Cb>
void parse_binop(int l, int r, char op, const Cb& cb) const {
int i = l, cl = i;
while (i <= r) {
if (s[i] == '(') {
i = p.rparen_for(i) + 1;
} else if (s[i] == op) {
cb(cl, i - 1);
i++;
cl = i;
} else {
i++;
}
}
cb(cl, r);
}
int eval_xor(int l, int r) const {
int ans = 0;
parse_binop(l, r, '^', [&](int ql, int qr) -> void {
ans ^= eval_or(ql, qr);
});
return ans;
}
int eval_or(int l, int r) const {
int ans = 0;
parse_binop(l, r, '|', [&](int ql, int qr) -> void {
ans |= eval_and(ql, qr);
});
return ans;
}
int eval_and(int l, int r) const {
int ans = 1;
parse_binop(l, r, '&', [&](int ql, int qr) -> void {
ans &= eval_eq(ql, qr);
});
return ans;
}
int eval_eq(int l, int r) const {
int ans = 1;
parse_binop(l, r, '=', [&](int ql, int qr) -> void {
ans = ans == eval_neg(ql, qr);
});
return ans;
}
int eval_neg(int l, int r) const {
int neg = 0, i = l;
while (s[i] == '!') {
neg ^= 1;
i++;
}
return neg ^ eval(i, r);
}
int eval() const {
return eval(0, sz(s) - 1);
}
};
using B = bitset<1024>;
void solve() {
int n, m;
cin >> n >> m;
int ret_val[n], arr[m][m][2][2];
memset(arr, 0x3f, sizeof(arr));
for (int i = 0; i < n; i++) {
int ind1, ind2;
string expr;
cin >> ind1 >> ind2 >> expr >> ret_val[i];
ind1--;
ind2--;
Paren p(expr);
for (int x : {0, 1}) {
for (int y : {0, 1}) {
if (Eval(expr, p, x, y).eval()) {
arr[ind1][ind2][x][y] = min(arr[ind1][ind2][x][y], i);
}
}
}
}
int def_return;
cin >> def_return;
B graph[1 << m] {};
for (int m1 = 0; m1 < (1 << m); m1++) {
for (int m2 = 0; m2 < (1 << m); m2++) {
int res = n;
for (int i = 0; i < m; i++) {
for (int j = 0; j < m; j++) {
res = min(res, arr[i][j][on(m1, i)][on(m2, j)]);
}
}
if (res == n) {
graph[m1][m2] = def_return;
} else {
graph[m1][m2] = ret_val[res];
}
}
}
int ans1 = 0, ans2 = 0, ans3 = 0;
for (int mask = 0; mask < (1 << m); mask++) {
if (graph[mask][mask]) {
ans1++;
}
}
for (int m1 = 0; m1 < (1 << m); m1++) {
for (int m2 = 0; m2 < (1 << m); m2++) {
if (graph[m1][m2] && graph[m2][m1]) {
ans2++;
}
}
}
for (int m1 = 0; m1 < (1 << m); m1++) {
auto ng = ~graph[m1];
for (int m2 = 0; m2 < (1 << m); m2++) {
if (graph[m1][m2]) {
ans3 += (graph[m2] & ng).count();
}
// for (int m3 = 0; m3 < (1 << m); m3++) {
// if (graph[m1][m2] && graph[m2][m3] && !graph[m1][m3]) {
// ans3++;
// }
// }
}
}
cout << ans1 << " " << ans2 << " " << ans3 << endl;
}
int main() {
cin.tie(nullptr);
cin.exceptions(ios::failbit);
ios_base::sync_with_stdio(false);
solve();
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3596kb
input:
3 2 1 1 (x=0)&(y=1) 1 1 1 (x=1)&(y=(x^x)) 0 2 2 (x=1)|(y=0) 0 1
output:
0 0 0
result:
ok single line: '0 0 0'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3600kb
input:
4 3 2 1 x=0&(y=1) 1 1 2 !x^!!y 0 2 3 ((x|1)=y)&1&1 1 3 1 !x&!x&!x 0 1
output:
3 25 52
result:
ok single line: '3 25 52'
Test #3:
score: 0
Accepted
time: 38ms
memory: 3692kb
input:
1413 3 1 3 0 0 3 3 !x 0 2 2 x=0 1 1 2 !y^0 1 2 3 (x^1) 0 3 2 ((!0)) 1 1 1 !!1=(y) 0 2 2 !(1^x)&y 1 3 2 (y)&1|!!1 0 3 1 !x=(y&y=y) 0 2 1 (((!1)^!x)) 1 2 3 !0=(0&y)=1&y 0 1 2 ((((!0)))|!1) 0 3 1 !(y=!1=x|(!x)) 0 1 1 ((((y=!y)))&!0) 0 2 3 ((y=1)^!1^!!1|0) 1 2 3 1|(!x)&!x|1|(x=1) 1 2 3 !0^!!!!y&0=(!1&!0...
output:
4 16 0
result:
ok single line: '4 16 0'
Test #4:
score: 0
Accepted
time: 237ms
memory: 4440kb
input:
181737 10 5 2 1 1 1 10 !1=!x 0 10 1 (1^x) 0 2 4 !1 1 10 8 y=(!1)^1 1 6 2 !((x&!x)) 1 1 10 !!((!x)|x) 1 7 10 (((0))) 0 7 3 !(1)^!x 0 10 4 (!1)&x 0 7 7 !y&!0 1 8 8 !1=(x)|1^1 1 2 6 ((!!!x)) 0 7 2 1 1 2 2 y=1=0 0 6 3 (!0) 0 6 4 0 0 1 1 (!1) 1 1 8 y 1 3 5 !x|!x^!1 0 4 7 (!0) 0 3 4 !1&1&!1|!0 1 2 7 ((0|1...
output:
1024 1048576 0
result:
ok single line: '1024 1048576 0'
Test #5:
score: 0
Accepted
time: 16ms
memory: 9048kb
input:
1 3 1 1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...
output:
4 16 0
result:
ok single line: '4 16 0'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3476kb
input:
1 1 1 1 x^y|1 0 1
output:
1 1 0
result:
ok single line: '1 1 0'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3812kb
input:
1 1 1 1 x&y|1 0 1
output:
0 0 0
result:
ok single line: '0 0 0'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3592kb
input:
1 1 1 1 x=y|1 0 1
output:
0 0 0
result:
ok single line: '0 0 0'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
2 2 1 2 !x&!y 1 1 1 !x&y 0 1
output:
4 12 2
result:
ok single line: '4 12 2'
Test #10:
score: 0
Accepted
time: 115ms
memory: 3844kb
input:
2 10 9 8 ((((!((!x=1))^(!1&(x|x|!y))&((!y&!x=(x=y)))&!((((x=1))&(0=(y))^(!!(!!x^1=x)&(x)^y&1=!x&1=(((!0^(1)^1))^!(((((y))|x|!y))))^!!0=!y&(0)|(y=x&!y&y=x)))=((((!!y&!!0|!0^!0)=!x))))^0&(((!1=!(!x)))|(((((x=1|!y|y)=(!1^1^0^(0)))=!0^1)))=(!(!1^(((((!1)^!x^0))))=(1)^((((y=((x))|(0)|(!1^1)))|(!!!y))=((!...
output:
0 0 0
result:
ok single line: '0 0 0'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
4 3 1 1 !!!!!!x 0 2 1 !!y 1 1 2 !!!!!x 1 2 2 !!!x 0 1
output:
4 16 0
result:
ok single line: '4 16 0'
Test #12:
score: 0
Accepted
time: 0ms
memory: 5440kb
input:
1 1 1 1 ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((...
output:
1 1 0
result:
ok single line: '1 1 0'
Test #13:
score: 0
Accepted
time: 183ms
memory: 4432kb
input:
200000 10 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10 !x^!y 1 3 10...
output:
512 262144 134217728
result:
ok single line: '512 262144 134217728'
Test #14:
score: 0
Accepted
time: 0ms
memory: 3592kb
input:
10 3 3 1 (!x) 1 3 2 !1&x&1&!y 1 2 1 ((x)&y) 1 1 3 0 0 2 2 !1&0=y&0 1 3 3 (!y)^y 1 2 1 0|((!y)) 0 3 2 x 0 2 2 (y|1^x) 0 2 1 ((!0)|y) 0 1
output:
8 64 0
result:
ok single line: '8 64 0'
Test #15:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
0 3 1
output:
8 64 0
result:
ok single line: '8 64 0'