QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#724772 | #7733. Cool, It’s Yesterday Four Times More | yangtb2024 | ML | 11ms | 6064kb | C++14 | 2.1kb | 2024-11-08 15:00:40 | 2024-11-08 15:00:40 |
Judging History
answer
#include <bits/stdc++.h>
#define rep(i, l, r) for(int i = l; i <= r; i++)
#define per(i, l, r) for(int i = r; i >= l; i--)
using namespace std;
const int N = 1005;
int n, m, a[N][N];
int col[N][N], bel;
bitset<N * 10> c;
int get(int x, int y) {
return (x + n + 1) * 3 * m + y;
}
void dfs(int x, int y) {
if(col[x][y]) {
return;
}
col[x][y] = bel;
if(x != 1 && !a[x - 1][y]) {
dfs(x - 1, y);
}
if(x != n && !a[x + 1][y]) {
dfs(x + 1, y);
}
if(y != 1 && !a[x][y - 1]) {
dfs(x, y - 1);
}
if(y != m && !a[x][y + 1]) {
dfs(x, y + 1);
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int T;
cin >> T;
while(T--) {
cin >> n >> m;
rep(i, 1, n) {
rep(j, 1, m) {
char x;
cin >> x;
a[i][j] = (x == 'O');
}
}
vector<bitset<N * 10>> s[N];
bitset<N * 10> kk;
rep(i, 1, n) {
rep(j, 0, m) {
s[i].push_back(kk);
}
}
rep(i, -n, n * 2) {
rep(j, -m + 1, m * 2) {
c[get(i, j)] = (i >= n + 1 || i <= 0 ? 1 : (j <= m && j >= 1 ? a[i][j] : 1));
}
}
rep(i, 1, n) {
rep(j, 1, m) {
col[i][j] = 0;
}
}
rep(i, 1, n) {
rep(j, 1, m) {
if(!a[i][j]) {
s[i][j] = c;
}
}
}
rep(i, 1, n) {
rep(j, 1, m) {
if(!a[i][j]) {
bel++;
dfs(i, j);
}
}
}
rep(i, 1, n) {
rep(j, 1, m) {
if(!a[i][j]) {
rep(k, 1, n) {
rep(t, 1, m) {
if(col[i][j] == col[k][t]) {
s[i][j] |= (i <= k ?
((j <= t ? (c >> (t - j)) : (c << (j - t))) >> ((k - i) * m * 3)) :
((j <= t ? (c >> (t - j)) : (c << (j - t))) << ((i - k) * m * 3)));
}
}
}
}
}
}
int ans = 0;
rep(i, 1, n) {
rep(j, 1, m) {
if(!a[i][j]) {
int sum = 0;
rep(k, 1, n) {
rep(t, 1, m) {
if(k == i && t == j) {
continue;
}
sum += s[i][j][get(k, t)];
}
}
if(sum == n * m - 1) {
ans++;
}
}
}
}
cout << ans << '\n';
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 5716kb
input:
4 2 5 .OO.. O..O. 1 3 O.O 1 3 .O. 2 3 OOO OOO
output:
3 1 0 0
result:
ok 4 lines
Test #2:
score: 0
Accepted
time: 2ms
memory: 5944kb
input:
200 2 4 OOO. OO.. 2 3 OOO .O. 3 3 O.O OOO OO. 4 1 . . O O 1 2 .O 1 1 . 2 5 .OO.. .O.O. 2 1 O O 1 1 O 1 3 .OO 5 1 O O . O . 5 2 O. .. O. .O .. 5 3 ... ... .OO ..O OOO 3 5 ..O.O .O.O. .OO.O 5 2 .O OO O. O. .. 2 1 O O 3 5 .O.OO O...O ..OO. 1 5 ..... 5 1 O . O . . 5 3 OOO OO. .OO OO. O.O 2 1 O . 5 2 O. ...
output:
3 0 0 2 1 1 3 0 0 1 0 7 9 4 4 0 6 5 2 0 1 6 4 5 2 0 0 5 3 3 1 4 1 0 7 5 2 3 7 3 0 6 2 2 2 0 4 6 6 3 3 2 3 5 2 1 0 3 3 4 4 2 2 0 7 6 4 8 5 3 2 5 2 1 2 1 4 0 0 2 5 1 4 6 6 1 6 2 2 3 4 5 2 1 0 1 9 3 4 11 0 3 2 1 0 0 4 3 1 4 3 8 3 0 3 6 2 5 1 3 3 4 0 2 11 2 2 4 0 4 4 6 2 1 2 3 0 5 0 16 4 3 2 6 0 8 3 3 1...
result:
ok 200 lines
Test #3:
score: 0
Accepted
time: 11ms
memory: 6064kb
input:
50 10 9 OOOO.O... O...O.OOO .....O... ..OO..O.O ...O..O.O ..OOO..O. ..OOO...O .OO.O..OO .O.O.OO.. .O..O.O.O 10 10 .O.OOO.OO. ...OOOOOOO ...O.O..O. .O.O..O... .O.O.OO..O ..OO.O..OO O....O..OO OO...OOOOO OO.OO.O..O .O.O.OOOOO 10 8 O..OOO.O O.OOOO.. O..OO.OO OO..OO.. .OOO..O. .OO.OO.O OOO..OO. ..O..OO....
output:
31 40 13 25 40 37 27 29 20 26 25 29 21 29 21 31 32 31 33 34 25 31 18 25 41 28 20 45 20 29 18 21 27 28 35 13 20 17 32 29 28 23 23 23 24 18 28 17 35 24
result:
ok 50 lines
Test #4:
score: -100
Memory Limit Exceeded
input:
5 1 1000 ....O..OO..O..O..OO...OOO.OOOO.O...O....OOOOO.....OO..OOOO.O..O....OOOO..OO..OOOO......O.O.O..O..OO.OO.OO.O....O.O.O.O.O.OO..O.O.OO..O..OO..O.OOO...O...O.O.O..O....O.OO...O..O...O.OOO..OO.O..O.OO.O.O..OOOO..O.OO.O.O....O.OO.......OOOO....O.O.O.O..OOO.O.OO.OOO..O...O.O.O.O.OO.O.OOOO...O.OO.....