QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#429307 | #8770. Comparator | james1BadCreeper | AC ✓ | 965ms | 20348kb | C++17 | 5.0kb | 2024-06-02 11:12:03 | 2024-06-02 11:12:03 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
class Solution {
public:
inline bool delim(char c) { return c == ' '; }
inline bool is_op(char c) { return c == '&' || c == '|' || c == '^' || c == '=' || c == '!'; }
inline bool is_unary(char c) { return c == '!'; }
inline int priority(char op) {
if (op < 0) return 5;
if (op == '=') return 4;
if (op == '&') return 3;
if (op == '|') return 2;
if (op == '^') return 1;
return -1;
}
void process_op(stack<int> &st, char op) {
if (op < 0) {
int l = st.top();
st.pop();
st.push(l ^ 1);
} else {
int r = st.top(); st.pop();
int l = st.top(); st.pop();
switch (op) {
case '&':
st.push(l & r);
break;
case '|':
st.push(l | r);
break;
case '^':
st.push(l ^ r);
break;
case '=':
st.push(l == r);
break;
}
}
}
int evaluate(string &s, int xval, int yval) {
stack<int> st;
stack<char> op;
bool may_be_unary = true;
for (int i = 0; i < int(s.size()); ++i) {
if (delim(s[i])) continue;
if (s[i] == '(') {
op.push('('); // 2. 如果遇到左括号,那么将其放在运算符栈上
may_be_unary = true;
} else if (s[i] == ')') { // 3. 如果遇到右括号,执行一对括号内的所有运算符
while (op.top() != '(') {
process_op(st, op.top());
op.pop(); // 不断输出栈顶元素,直至遇到左括号
}
op.pop(); // 左括号出栈
may_be_unary = false;
} else if (is_op(s[i])) { // 4. 如果遇到其他运算符
char cur_op = s[i];
if (may_be_unary && is_unary(cur_op))
cur_op = -cur_op;
while (!op.empty() &&
((cur_op >= 0 && priority(op.top()) >= priority(cur_op)) ||
(cur_op < 0 && priority(op.top()) > priority(cur_op)))) {
process_op(st, op.top());
op.pop(); // 不断输出所有运算优先级大于等于当前运算符的运算符
}
op.push(cur_op); // 新的运算符入运算符栈
may_be_unary = true;
} else { // 1. 如果遇到数字,直接输出该数字
int number = 0;
if (s[i] == 'x') number = xval;
else if (s[i] == 'y') number = yval;
else assert(isdigit(s[i])), number = s[i] - '0';
st.push(number);
may_be_unary = false;
}
}
while (!op.empty()) {
process_op(st, op.top());
op.pop();
}
return st.top();
}
} whiteqwq;
int n, m, k;
int ans[1024][1024];
struct Node {
int x, y, val;
set<pair<int, int>> st;
} a[200005];
int atval;
vector<Node> t;
inline int calc(int x, int y) {
for (int i = 1; i <= m; ++i)
if (a[i].st.find({x >> a[i].x & 1, y >> a[i].y & 1}) != a[i].st.end())
return a[i].val;
return atval;
}
set<tuple<int, int, int, int>> clc;
int main(void) {
ios::sync_with_stdio(0);
cin >> n >> k;
for (int i = 1; i <= n; ++i) {
Node t; cin >> t.x >> t.y; --t.x; --t.y;
string s; cin >> s;
cin >> t.val;
if (whiteqwq.evaluate(s, 0, 0) && clc.find({t.x, t.y, 0, 0}) == clc.end()) t.st.emplace(0, 0), clc.emplace(t.x, t.y, 0, 0);
if (whiteqwq.evaluate(s, 0, 1) && clc.find({t.x, t.y, 0, 1}) == clc.end()) t.st.emplace(0, 1), clc.emplace(t.x, t.y, 0, 1);
if (whiteqwq.evaluate(s, 1, 0) && clc.find({t.x, t.y, 1, 0}) == clc.end()) t.st.emplace(1, 0), clc.emplace(t.x, t.y, 1, 0);
if (whiteqwq.evaluate(s, 1, 1) && clc.find({t.x, t.y, 1, 1}) == clc.end()) t.st.emplace(1, 1), clc.emplace(t.x, t.y, 1, 1);
if (t.st.size()) a[++m] = t;
cerr << i << "\n";
for (auto [x, y] : t.st) cerr << x << " " << y << "\n";
cerr << "----------\n";
}
cin >> atval;
for (int i = 0; i < 1 << k; ++i)
for (int j = 0; j < 1 << k; ++j)
ans[i][j] = calc(i, j);
cerr << calc(2, 2) << "\n";
int ans1 = 0, ans2 = 0, ans3 = 0;
for (int i = 0; i < 1 << k; ++i)
if (ans[i][i] != 0) ++ans1;
for (int x = 0; x < 1 << k; ++x)
for (int y = 0; y < 1 << k; ++y) {
if (ans[x][y] == 1 && ans[y][x] != 0) ++ans2;
if (ans[x][y])
for (int z = 0; z < 1 << k; ++z)
if (ans[y][z] && ans[x][z] == 0) ++ans3;
}
cout << ans1 << " " << ans2 << " " << ans3 << "\n";
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 4ms
memory: 16436kb
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: 16680kb
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: 43ms
memory: 17156kb
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: 965ms
memory: 20308kb
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: 29ms
memory: 19208kb
input:
1 3 1 1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...
output:
4 16 0
result:
ok single line: '4 16 0'
Test #6:
score: 0
Accepted
time: 2ms
memory: 17568kb
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: 17856kb
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: 16616kb
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: 4ms
memory: 16640kb
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: 16ms
memory: 20348kb
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: 4ms
memory: 18012kb
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: 3ms
memory: 16732kb
input:
1 1 1 1 ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((...
output:
1 1 0
result:
ok single line: '1 1 0'
Test #13:
score: 0
Accepted
time: 544ms
memory: 20216kb
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: 16968kb
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: 16572kb
input:
0 3 1
output:
8 64 0
result:
ok single line: '8 64 0'