QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#353318 | #7635. Fairy Chess | Misuki | AC ✓ | 991ms | 3964kb | C++20 | 2.5kb | 2024-03-14 02:30:12 | 2024-03-14 02:30:12 |
Judging History
answer
#pragma GCC optimize("O2")
#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
bool OUT(int x, int y) { return !(0 <= x and x < 8 and 0 <= y and y < 8); }
vector<pii> attackSet(int msk, int x, int y) {
vector<pii> res;
if (msk & 1) {
for(int i = 1; i < 8; i++) for(int r1 : {-1, 1}) for(int r2 : {-1, 1})
if (!OUT(x + r1 * i, y + r2 * i))
res.emplace_back(x + r1 * i, y + r2 * i);
}
if (msk & 2) {
for(int i = -7; i < 8; i++) {
if (i != 0 and !OUT(x + i, y))
res.emplace_back(x + i, y);
if (i != 0 and !OUT(x, y + i))
res.emplace_back(x, y + i);
}
}
if (msk & 4) {
for(int i : {-2, -1, 1, 2})
for(int j : {-2, -1, 1, 2})
if (abs(i) != abs(j) and !OUT(x + i, y + j))
res.emplace_back(x + i, y + j);
}
return res;
}
using board = array<array<bool, 8>, 8>;
vector<pii> pre[8][8][8];
int main() {
cin.tie(0)->sync_with_stdio(0);
cin.exceptions(cin.failbit);
for(int i = 1; i < 8; i++)
for(int j = 0; j < 8; j++)
for(int k = 0; k < 8; k++)
pre[i][j][k] = attackSet(i, j, k);
string s; cin >> s;
array<int, 12> id;
for(int i = 0; i < 12; i++) {
char c = s[i];
if (c == 'B') id[i] = 1;
if (c == 'R') id[i] = 2;
if (c == 'Q') id[i] = 3;
if (c == 'A') id[i] = 5;
if (c == 'C') id[i] = 6;
if (c == 'M') id[i] = 7;
}
auto dfs = [&](int cnt, board pos, board attacked, auto self) -> bool {
if (cnt == 12) return false;
for(int i = 0; i < 8; i++) for(int j = 0; j < 8; j++) if (!attacked[i][j] and !pos[i][j]) {
bool valid = true;
for(auto [x, y] : pre[id[cnt]][i][j])
valid = valid and !pos[x][y];
if (valid) {
auto tmp = attacked;
pos[i][j] = true;
for(auto [x, y] : pre[id[cnt]][i][j])
tmp[x][y] = true;
if (!self(cnt + 1, pos, tmp, self)) return true;
pos[i][j] = false;
}
}
return false;
};
board init = {};
cout << (dfs(0, init, init, dfs) ? "Alice\n" : "Bob\n");
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 83ms
memory: 3908kb
input:
BBAARRCCQQMM
output:
Bob
result:
ok single line: 'Bob'
Test #2:
score: 0
Accepted
time: 6ms
memory: 3708kb
input:
BAMBAMQQRCCR
output:
Alice
result:
ok single line: 'Alice'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3704kb
input:
QQRAACMRMCBB
output:
Alice
result:
ok single line: 'Alice'
Test #4:
score: 0
Accepted
time: 13ms
memory: 3936kb
input:
MBBARQRMACQC
output:
Alice
result:
ok single line: 'Alice'
Test #5:
score: 0
Accepted
time: 3ms
memory: 3712kb
input:
ACQCMQRBBRMA
output:
Alice
result:
ok single line: 'Alice'
Test #6:
score: 0
Accepted
time: 2ms
memory: 3700kb
input:
MRCMABRQCQAB
output:
Alice
result:
ok single line: 'Alice'
Test #7:
score: 0
Accepted
time: 13ms
memory: 3600kb
input:
BBRCMMQAAQRC
output:
Alice
result:
ok single line: 'Alice'
Test #8:
score: 0
Accepted
time: 8ms
memory: 3904kb
input:
RRMCQMACABQB
output:
Alice
result:
ok single line: 'Alice'
Test #9:
score: 0
Accepted
time: 7ms
memory: 3868kb
input:
QMQBMRBACACR
output:
Alice
result:
ok single line: 'Alice'
Test #10:
score: 0
Accepted
time: 4ms
memory: 3704kb
input:
CMRQAQCBBRAM
output:
Alice
result:
ok single line: 'Alice'
Test #11:
score: 0
Accepted
time: 11ms
memory: 3608kb
input:
CABCRQMMRQAB
output:
Alice
result:
ok single line: 'Alice'
Test #12:
score: 0
Accepted
time: 41ms
memory: 3660kb
input:
ARCBBCMQRAQM
output:
Alice
result:
ok single line: 'Alice'
Test #13:
score: 0
Accepted
time: 2ms
memory: 3708kb
input:
ARCMCARMQBBQ
output:
Alice
result:
ok single line: 'Alice'
Test #14:
score: 0
Accepted
time: 26ms
memory: 3884kb
input:
AQABMCQCMRRB
output:
Bob
result:
ok single line: 'Bob'
Test #15:
score: 0
Accepted
time: 5ms
memory: 3696kb
input:
ACMRABRQMCBQ
output:
Alice
result:
ok single line: 'Alice'
Test #16:
score: 0
Accepted
time: 23ms
memory: 3644kb
input:
CBARMBCQMQAR
output:
Bob
result:
ok single line: 'Bob'
Test #17:
score: 0
Accepted
time: 42ms
memory: 3656kb
input:
RBABRQMCAMQC
output:
Bob
result:
ok single line: 'Bob'
Test #18:
score: 0
Accepted
time: 0ms
memory: 3708kb
input:
MBCQBQARRMCA
output:
Alice
result:
ok single line: 'Alice'
Test #19:
score: 0
Accepted
time: 17ms
memory: 3580kb
input:
AMBQRBCQACMR
output:
Bob
result:
ok single line: 'Bob'
Test #20:
score: 0
Accepted
time: 1ms
memory: 3676kb
input:
QRAMQMBBCRAC
output:
Alice
result:
ok single line: 'Alice'
Test #21:
score: 0
Accepted
time: 2ms
memory: 3648kb
input:
ARBCQMMBARQC
output:
Alice
result:
ok single line: 'Alice'
Test #22:
score: 0
Accepted
time: 62ms
memory: 3940kb
input:
CACAMBRQQRBM
output:
Bob
result:
ok single line: 'Bob'
Test #23:
score: 0
Accepted
time: 19ms
memory: 3736kb
input:
CQRRMMBQABCA
output:
Bob
result:
ok single line: 'Bob'
Test #24:
score: 0
Accepted
time: 26ms
memory: 3704kb
input:
ABABCQRMMCRQ
output:
Alice
result:
ok single line: 'Alice'
Test #25:
score: 0
Accepted
time: 10ms
memory: 3744kb
input:
CMBRAAQRQMBC
output:
Bob
result:
ok single line: 'Bob'
Test #26:
score: 0
Accepted
time: 2ms
memory: 3708kb
input:
AQBMRMQRBACC
output:
Alice
result:
ok single line: 'Alice'
Test #27:
score: 0
Accepted
time: 16ms
memory: 3648kb
input:
BRACQQMCAMBR
output:
Bob
result:
ok single line: 'Bob'
Test #28:
score: 0
Accepted
time: 4ms
memory: 3636kb
input:
MCCAQBMQRABR
output:
Bob
result:
ok single line: 'Bob'
Test #29:
score: 0
Accepted
time: 27ms
memory: 3600kb
input:
RBQBCRAACMQM
output:
Bob
result:
ok single line: 'Bob'
Test #30:
score: 0
Accepted
time: 7ms
memory: 3744kb
input:
ACRQARMBBQMC
output:
Bob
result:
ok single line: 'Bob'
Test #31:
score: 0
Accepted
time: 1ms
memory: 3948kb
input:
MRCQBCBQRMAA
output:
Alice
result:
ok single line: 'Alice'
Test #32:
score: 0
Accepted
time: 10ms
memory: 3600kb
input:
ACRQQCMMBBAR
output:
Bob
result:
ok single line: 'Bob'
Test #33:
score: 0
Accepted
time: 2ms
memory: 3660kb
input:
MMACQBRQABRC
output:
Bob
result:
ok single line: 'Bob'
Test #34:
score: 0
Accepted
time: 2ms
memory: 3648kb
input:
QACMQABRMCBR
output:
Alice
result:
ok single line: 'Alice'
Test #35:
score: 0
Accepted
time: 10ms
memory: 3704kb
input:
ACAQRCMRMBQB
output:
Alice
result:
ok single line: 'Alice'
Test #36:
score: 0
Accepted
time: 17ms
memory: 3676kb
input:
RABQCQMCABMR
output:
Bob
result:
ok single line: 'Bob'
Test #37:
score: 0
Accepted
time: 7ms
memory: 3704kb
input:
QQBARCRBMMAC
output:
Alice
result:
ok single line: 'Alice'
Test #38:
score: 0
Accepted
time: 1ms
memory: 3712kb
input:
RQMRQABCABCM
output:
Alice
result:
ok single line: 'Alice'
Test #39:
score: 0
Accepted
time: 3ms
memory: 3644kb
input:
RQAMBRQCCBMA
output:
Alice
result:
ok single line: 'Alice'
Test #40:
score: 0
Accepted
time: 2ms
memory: 3652kb
input:
QQBACMARMRBC
output:
Alice
result:
ok single line: 'Alice'
Test #41:
score: 0
Accepted
time: 8ms
memory: 3884kb
input:
QAQCRRAMMCBB
output:
Alice
result:
ok single line: 'Alice'
Test #42:
score: 0
Accepted
time: 7ms
memory: 3744kb
input:
QQBMCBRARMAC
output:
Bob
result:
ok single line: 'Bob'
Test #43:
score: 0
Accepted
time: 113ms
memory: 3644kb
input:
BABARRCCQQMM
output:
Bob
result:
ok single line: 'Bob'
Test #44:
score: 0
Accepted
time: 570ms
memory: 3648kb
input:
BBARARCCQQMM
output:
Alice
result:
ok single line: 'Alice'
Test #45:
score: 0
Accepted
time: 46ms
memory: 3708kb
input:
BBAARCRCQQMM
output:
Alice
result:
ok single line: 'Alice'
Test #46:
score: 0
Accepted
time: 146ms
memory: 3744kb
input:
BBAARRCQCQMM
output:
Bob
result:
ok single line: 'Bob'
Test #47:
score: 0
Accepted
time: 87ms
memory: 3940kb
input:
BBAARRCCQMQM
output:
Bob
result:
ok single line: 'Bob'
Test #48:
score: 0
Accepted
time: 349ms
memory: 3596kb
input:
BBAACCRQMQRM
output:
Bob
result:
ok single line: 'Bob'
Test #49:
score: 0
Accepted
time: 335ms
memory: 3648kb
input:
BACBACQRRQMM
output:
Bob
result:
ok single line: 'Bob'
Test #50:
score: 0
Accepted
time: 991ms
memory: 3720kb
input:
RAABBRCCQQMM
output:
Bob
result:
ok single line: 'Bob'
Test #51:
score: 0
Accepted
time: 68ms
memory: 3964kb
input:
RABRBQMCACQM
output:
Bob
result:
ok single line: 'Bob'
Test #52:
score: 0
Accepted
time: 1ms
memory: 3740kb
input:
CMMQQABCRABR
output:
Alice
result:
ok single line: 'Alice'
Test #53:
score: 0
Accepted
time: 191ms
memory: 3952kb
input:
RBAABRCCQQMM
output:
Alice
result:
ok single line: 'Alice'
Extra Test:
score: 0
Extra Test Passed