QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#229286 | #7635. Fairy Chess | ucup-team918# | AC ✓ | 132ms | 3740kb | C++20 | 3.7kb | 2023-10-28 15:40:22 | 2023-10-28 15:40:23 |
Judging History
answer
//#pragma GCC optimize(2)
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define N 200005
#define mod 998244353
#define pii pair<int,int>
#define mp make_pair
#define pb push_back
#define ls (rt<<1)
#define rs ((rt<<1)|1)
#define fi first
#define se second
#define INF 1e9
int qpow(int a,int b){
int res=1;
for(;b;b>>=1){
if(b&1) res=res*a%mod;
a=a*a%mod;
}
return res;
}
/*int fac[N],ifac[N];
int C(int n,int m){
if(m>n||m<0||n<0) return 0;
return fac[n]*ifac[n-m]%mod*ifac[m]%mod;
}
void init(){
fac[0]=1;
for(int i=1;i<N;i++) fac[i]=fac[i-1]*i%mod;
ifac[N-1]=qpow(fac[N-1],mod-2);
for(int i=N-2;i>=0;i--) ifac[i]=ifac[i+1]*(i+1)%mod;
}*/
/*struct node{
int nxt,to;
}e[N<<1];
int cnt=1,head[N];
inline void add(int x,int y){
e[++cnt].nxt=head[x];
head[x]=cnt;
e[cnt].to=y;
}*/
inline int lowbit(int x){return x&(-x);}
inline int read(){
int x=0,t=1;char ch=getchar();
while(ch<'0'||ch>'9'){
if(ch=='-') t=-1;
ch=getchar();
}
while(ch>='0'&&ch<='9'){
x=(x<<1)+(x<<3)+(ch-'0');
ch=getchar();
}
return x*t;
}
inline void write(int x){
if(x<0) putchar('-'),x=-x;
if(x>=10) write(x/10);
putchar(x%10+'0');
}
int T,n,c[9][9],d[9][9];
string s;
const int dx[8]={1,1,-1,-1,2,2,-2,-2};
const int dy[8]={2,-2,2,-2,1,-1,1,-1};
const int tx[4]={1,-1,1,-1};
const int tY[4]={-1,1,1,-1};
int deal(char o,int ty,int x,int y){
int tot=0;
if(o=='R'||o=='Q'||o=='C'||o=='M'){
for(int j=1;j<=8;j++){
if(!c[x][j]) tot++;
c[x][j]+=ty;
}
for(int j=1;j<=8;j++){
if(!c[j][y]) tot++;
c[j][y]+=ty;
}
}
if(o=='Q'||o=='A'||o=='M'||o=='B'){
for(int k=0;k<4;k++){
int nowx=x,nowy=y;
while(nowx>=1&&nowx<=8&&nowy>=1&&nowy<=8){
if(!c[nowx][nowy]) tot++;
c[nowx][nowy]+=ty;
nowx+=tx[k];nowy+=tY[k];
}
}
}
if(o=='A'||o=='C'||o=='M'){
for(int k=0;k<8;k++){
int nx=x+dx[k],ny=y+dy[k];
if(nx>=1&&nx<=8&&ny>=1&&ny<=8){
if(!c[nx][ny]) tot++;
c[nx][ny]+=ty;
}
}
if(!c[x][y]) tot++;
c[x][y]+=ty;
}
return tot;
}
int check(int x,int y,char o){
if(o=='R'||o=='Q'||o=='C'||o=='M'){
for(int j=1;j<=8;j++)
if(d[x][j]) return 1;
for(int j=1;j<=8;j++)
if(d[j][y]) return 1;
}
if(o=='Q'||o=='A'||o=='M'||o=='B'){
for(int k=0;k<4;k++){
int nowx=x,nowy=y;
while(nowx>=1&&nowx<=8&&nowy>=1&&nowy<=8){
if(d[nowx][nowy]) return 1;
nowx+=tx[k];nowy+=tY[k];
}
}
}
if(o=='A'||o=='C'||o=='M'){
for(int k=0;k<8;k++){
int nx=x+dx[k],ny=y+dy[k];
if(nx>=1&&nx<=8&&ny>=1&&ny<=8){
if(d[nx][ny]) return 1;
}
}
}
return 0;
}
int solve(int now,int tot){
if(now==12) return 1;
int turn=now%2;
int t=8;if(now==0) t=4;
for(int i=1;i<=t;i++)
for(int j=1;j<=t;j++){
if(c[i][j]) continue;
if(check(i,j,s[now])) continue;
int rr=deal(s[now],1,i,j);
d[i][j]=1;
if(rr+tot==64){
deal(s[now],-1,i,j);
d[i][j]=0;
return turn;
}
if(rr>=10){
int w=solve(now+1,tot+rr);
if(w==turn){
deal(s[now],-1,i,j);
d[i][j]=0;
return w;
}
}
deal(s[now],-1,i,j);
d[i][j]=0;
}
for(int i=1;i<=t;i++)
for(int j=1;j<=t;j++){
if(c[i][j]) continue;
if(check(i,j,s[now])) continue;
int rr=deal(s[now],1,i,j);
d[i][j]=1;
if(rr<10){
int w=solve(now+1,tot+rr);
if(w==turn){
deal(s[now],-1,i,j);
d[i][j]=0;
return w;
}
}
deal(s[now],-1,i,j);
d[i][j]=0;
}
// cout<<now<<" "<<turn<<endl;
return (turn^1);
}
signed main(){
ios::sync_with_stdio(false);
cin.tie(0);cout.tie(0);
cin>>s;
int res=solve(0,0);
if(res==0) cout<<"Alice"<<endl;
else cout<<"Bob"<<endl;
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 19ms
memory: 3736kb
input:
BBAARRCCQQMM
output:
Bob
result:
ok single line: 'Bob'
Test #2:
score: 0
Accepted
time: 8ms
memory: 3640kb
input:
BAMBAMQQRCCR
output:
Alice
result:
ok single line: 'Alice'
Test #3:
score: 0
Accepted
time: 6ms
memory: 3584kb
input:
QQRAACMRMCBB
output:
Alice
result:
ok single line: 'Alice'
Test #4:
score: 0
Accepted
time: 13ms
memory: 3676kb
input:
MBBARQRMACQC
output:
Alice
result:
ok single line: 'Alice'
Test #5:
score: 0
Accepted
time: 4ms
memory: 3648kb
input:
ACQCMQRBBRMA
output:
Alice
result:
ok single line: 'Alice'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3612kb
input:
MRCMABRQCQAB
output:
Alice
result:
ok single line: 'Alice'
Test #7:
score: 0
Accepted
time: 5ms
memory: 3576kb
input:
BBRCMMQAAQRC
output:
Alice
result:
ok single line: 'Alice'
Test #8:
score: 0
Accepted
time: 12ms
memory: 3712kb
input:
RRMCQMACABQB
output:
Alice
result:
ok single line: 'Alice'
Test #9:
score: 0
Accepted
time: 12ms
memory: 3644kb
input:
QMQBMRBACACR
output:
Alice
result:
ok single line: 'Alice'
Test #10:
score: 0
Accepted
time: 5ms
memory: 3676kb
input:
CMRQAQCBBRAM
output:
Alice
result:
ok single line: 'Alice'
Test #11:
score: 0
Accepted
time: 28ms
memory: 3740kb
input:
CABCRQMMRQAB
output:
Alice
result:
ok single line: 'Alice'
Test #12:
score: 0
Accepted
time: 49ms
memory: 3740kb
input:
ARCBBCMQRAQM
output:
Alice
result:
ok single line: 'Alice'
Test #13:
score: 0
Accepted
time: 3ms
memory: 3736kb
input:
ARCMCARMQBBQ
output:
Alice
result:
ok single line: 'Alice'
Test #14:
score: 0
Accepted
time: 10ms
memory: 3648kb
input:
AQABMCQCMRRB
output:
Bob
result:
ok single line: 'Bob'
Test #15:
score: 0
Accepted
time: 10ms
memory: 3604kb
input:
ACMRABRQMCBQ
output:
Alice
result:
ok single line: 'Alice'
Test #16:
score: 0
Accepted
time: 7ms
memory: 3584kb
input:
CBARMBCQMQAR
output:
Bob
result:
ok single line: 'Bob'
Test #17:
score: 0
Accepted
time: 11ms
memory: 3736kb
input:
RBABRQMCAMQC
output:
Bob
result:
ok single line: 'Bob'
Test #18:
score: 0
Accepted
time: 4ms
memory: 3740kb
input:
MBCQBQARRMCA
output:
Alice
result:
ok single line: 'Alice'
Test #19:
score: 0
Accepted
time: 6ms
memory: 3648kb
input:
AMBQRBCQACMR
output:
Bob
result:
ok single line: 'Bob'
Test #20:
score: 0
Accepted
time: 1ms
memory: 3740kb
input:
QRAMQMBBCRAC
output:
Alice
result:
ok single line: 'Alice'
Test #21:
score: 0
Accepted
time: 2ms
memory: 3732kb
input:
ARBCQMMBARQC
output:
Alice
result:
ok single line: 'Alice'
Test #22:
score: 0
Accepted
time: 10ms
memory: 3588kb
input:
CACAMBRQQRBM
output:
Bob
result:
ok single line: 'Bob'
Test #23:
score: 0
Accepted
time: 17ms
memory: 3584kb
input:
CQRRMMBQABCA
output:
Bob
result:
ok single line: 'Bob'
Test #24:
score: 0
Accepted
time: 40ms
memory: 3652kb
input:
ABABCQRMMCRQ
output:
Alice
result:
ok single line: 'Alice'
Test #25:
score: 0
Accepted
time: 9ms
memory: 3660kb
input:
CMBRAAQRQMBC
output:
Bob
result:
ok single line: 'Bob'
Test #26:
score: 0
Accepted
time: 3ms
memory: 3640kb
input:
AQBMRMQRBACC
output:
Alice
result:
ok single line: 'Alice'
Test #27:
score: 0
Accepted
time: 8ms
memory: 3648kb
input:
BRACQQMCAMBR
output:
Bob
result:
ok single line: 'Bob'
Test #28:
score: 0
Accepted
time: 3ms
memory: 3608kb
input:
MCCAQBMQRABR
output:
Bob
result:
ok single line: 'Bob'
Test #29:
score: 0
Accepted
time: 11ms
memory: 3672kb
input:
RBQBCRAACMQM
output:
Bob
result:
ok single line: 'Bob'
Test #30:
score: 0
Accepted
time: 5ms
memory: 3604kb
input:
ACRQARMBBQMC
output:
Bob
result:
ok single line: 'Bob'
Test #31:
score: 0
Accepted
time: 2ms
memory: 3640kb
input:
MRCQBCBQRMAA
output:
Alice
result:
ok single line: 'Alice'
Test #32:
score: 0
Accepted
time: 4ms
memory: 3644kb
input:
ACRQQCMMBBAR
output:
Bob
result:
ok single line: 'Bob'
Test #33:
score: 0
Accepted
time: 2ms
memory: 3584kb
input:
MMACQBRQABRC
output:
Bob
result:
ok single line: 'Bob'
Test #34:
score: 0
Accepted
time: 3ms
memory: 3648kb
input:
QACMQABRMCBR
output:
Alice
result:
ok single line: 'Alice'
Test #35:
score: 0
Accepted
time: 5ms
memory: 3652kb
input:
ACAQRCMRMBQB
output:
Alice
result:
ok single line: 'Alice'
Test #36:
score: 0
Accepted
time: 7ms
memory: 3608kb
input:
RABQCQMCABMR
output:
Bob
result:
ok single line: 'Bob'
Test #37:
score: 0
Accepted
time: 11ms
memory: 3648kb
input:
QQBARCRBMMAC
output:
Alice
result:
ok single line: 'Alice'
Test #38:
score: 0
Accepted
time: 2ms
memory: 3648kb
input:
RQMRQABCABCM
output:
Alice
result:
ok single line: 'Alice'
Test #39:
score: 0
Accepted
time: 4ms
memory: 3612kb
input:
RQAMBRQCCBMA
output:
Alice
result:
ok single line: 'Alice'
Test #40:
score: 0
Accepted
time: 0ms
memory: 3668kb
input:
QQBACMARMRBC
output:
Alice
result:
ok single line: 'Alice'
Test #41:
score: 0
Accepted
time: 6ms
memory: 3576kb
input:
QAQCRRAMMCBB
output:
Alice
result:
ok single line: 'Alice'
Test #42:
score: 0
Accepted
time: 0ms
memory: 3736kb
input:
QQBMCBRARMAC
output:
Bob
result:
ok single line: 'Bob'
Test #43:
score: 0
Accepted
time: 30ms
memory: 3580kb
input:
BABARRCCQQMM
output:
Bob
result:
ok single line: 'Bob'
Test #44:
score: 0
Accepted
time: 97ms
memory: 3668kb
input:
BBARARCCQQMM
output:
Alice
result:
ok single line: 'Alice'
Test #45:
score: 0
Accepted
time: 23ms
memory: 3648kb
input:
BBAARCRCQQMM
output:
Alice
result:
ok single line: 'Alice'
Test #46:
score: 0
Accepted
time: 23ms
memory: 3664kb
input:
BBAARRCQCQMM
output:
Bob
result:
ok single line: 'Bob'
Test #47:
score: 0
Accepted
time: 19ms
memory: 3640kb
input:
BBAARRCCQMQM
output:
Bob
result:
ok single line: 'Bob'
Test #48:
score: 0
Accepted
time: 63ms
memory: 3712kb
input:
BBAACCRQMQRM
output:
Bob
result:
ok single line: 'Bob'
Test #49:
score: 0
Accepted
time: 60ms
memory: 3676kb
input:
BACBACQRRQMM
output:
Bob
result:
ok single line: 'Bob'
Test #50:
score: 0
Accepted
time: 132ms
memory: 3644kb
input:
RAABBRCCQQMM
output:
Bob
result:
ok single line: 'Bob'
Test #51:
score: 0
Accepted
time: 19ms
memory: 3604kb
input:
RABRBQMCACQM
output:
Bob
result:
ok single line: 'Bob'
Test #52:
score: 0
Accepted
time: 1ms
memory: 3660kb
input:
CMMQQABCRABR
output:
Alice
result:
ok single line: 'Alice'
Test #53:
score: 0
Accepted
time: 54ms
memory: 3648kb
input:
RBAABRCCQQMM
output:
Alice
result:
ok single line: 'Alice'
Extra Test:
score: 0
Extra Test Passed