QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#17932 | #2213. Knight | qingyu_orz | AC ✓ | 778ms | 130796kb | C++14 | 1.4kb | 2022-01-15 12:57:47 | 2022-05-04 16:26:59 |
Judging History
answer
#include<bits/stdc++.h>
#define mk(x,y) ((x-1)*m+y)
using namespace std;
char s[1005][1005];
vector<int>g[1000005];
int mb[8][2];
int col[1000005];
void dfs(int x){
for(auto cu:g[x]){
if(col[cu]){
continue;
}
col[cu]=-col[x];
dfs(cu);
}
}
int main(){
int n,m,x,y;
cin>>n>>m>>x>>y;
int f1=0,f2=0;
for(int i=1;i<=n;++i){
scanf("%s",s[i]+1);
for(int j=1;j<=m;++j){
f1|=s[i][j]=='A';
f2|=s[i][j]=='B';
}
}
if(!(f1&f2)){
puts("yangxiaorui");
puts("hacked");
puts("qingyu.blog");
return 0;
}
mb[0][0]=x,mb[0][1]=y;
mb[1][0]=-x,mb[1][1]=y;
mb[2][0]=x,mb[2][1]=-y;
mb[3][0]=-x,mb[3][1]=-y;
mb[4][0]=y,mb[4][1]=x;
mb[5][0]=-y,mb[5][1]=x;
mb[6][0]=y,mb[6][1]=-x;
mb[7][0]=-y,mb[7][1]=-x;
for(int i=1;i<=n;++i)for(int j=1;j<=m;++j)
if(s[i][j]!='@'){
for(int k=0;k<8;++k){
int dx=i+mb[k][0],dy=j+mb[k][1];
if(dx<1||dy<1||dx>n||dy>m)continue;
if(s[dx][dy]=='@')continue;
int u=mk(i,j),v=mk(dx,dy);
g[u].emplace_back(v);
g[v].emplace_back(u);
}
}
int A=-1,B=-1;
for(int i=1;i<=n;++i)for(int j=1;j<=m;++j){
if(s[i][j]=='A')A=mk(i,j);
else if(s[i][j]=='B')B=mk(i,j);
}
if(!g[A].size()||g[A][0]==B){
puts("Bob");
return 0;
}
int N=mk(n,m);
for(int i=1;i<=N;++i)if(!col[i]){
col[i]=i;
dfs(i);
}
if(abs(col[A])!=abs(col[B]))puts("Alice");
else if(col[A]==col[B])puts("Alice");
else puts("Bob");
return 0;
}
Details
Test #1:
score: 100
Accepted
time: 73ms
memory: 43932kb
Test #2:
score: 0
Accepted
time: 0ms
memory: 29108kb
Test #3:
score: 0
Accepted
time: 285ms
memory: 60060kb
Test #4:
score: 0
Accepted
time: 131ms
memory: 42880kb
Test #5:
score: 0
Accepted
time: 1ms
memory: 27088kb
Test #6:
score: 0
Accepted
time: 17ms
memory: 32728kb
Test #7:
score: 0
Accepted
time: 4ms
memory: 28468kb
Test #8:
score: 0
Accepted
time: 6ms
memory: 29080kb
Test #9:
score: 0
Accepted
time: 46ms
memory: 37516kb
Test #10:
score: 0
Accepted
time: 24ms
memory: 32648kb
Test #11:
score: 0
Accepted
time: 7ms
memory: 29172kb
Test #12:
score: 0
Accepted
time: 150ms
memory: 50008kb
Test #13:
score: 0
Accepted
time: 33ms
memory: 35188kb
Test #14:
score: 0
Accepted
time: 55ms
memory: 42684kb
Test #15:
score: 0
Accepted
time: 12ms
memory: 31460kb
Test #16:
score: 0
Accepted
time: 16ms
memory: 29408kb
Test #17:
score: 0
Accepted
time: 2ms
memory: 28720kb
Test #18:
score: 0
Accepted
time: 28ms
memory: 31508kb
Test #19:
score: 0
Accepted
time: 17ms
memory: 30072kb
Test #20:
score: 0
Accepted
time: 38ms
memory: 39256kb
Test #21:
score: 0
Accepted
time: 4ms
memory: 28900kb
Test #22:
score: 0
Accepted
time: 11ms
memory: 29756kb
Test #23:
score: 0
Accepted
time: 2ms
memory: 28616kb
Test #24:
score: 0
Accepted
time: 12ms
memory: 30072kb
Test #25:
score: 0
Accepted
time: 11ms
memory: 29620kb
Test #26:
score: 0
Accepted
time: 10ms
memory: 27488kb
Test #27:
score: 0
Accepted
time: 6ms
memory: 28152kb
Test #28:
score: 0
Accepted
time: 187ms
memory: 61304kb
Test #29:
score: 0
Accepted
time: 10ms
memory: 29040kb
Test #30:
score: 0
Accepted
time: 19ms
memory: 33364kb
Test #31:
score: 0
Accepted
time: 25ms
memory: 31272kb
Test #32:
score: 0
Accepted
time: 4ms
memory: 29364kb
Test #33:
score: 0
Accepted
time: 223ms
memory: 55572kb
Test #34:
score: 0
Accepted
time: 21ms
memory: 29900kb
Test #35:
score: 0
Accepted
time: 197ms
memory: 52428kb
Test #36:
score: 0
Accepted
time: 273ms
memory: 54928kb
Test #37:
score: 0
Accepted
time: 13ms
memory: 30692kb
Test #38:
score: 0
Accepted
time: 50ms
memory: 34168kb
Test #39:
score: 0
Accepted
time: 4ms
memory: 28608kb
Test #40:
score: 0
Accepted
time: 8ms
memory: 27948kb
Test #41:
score: 0
Accepted
time: 17ms
memory: 31416kb
Test #42:
score: 0
Accepted
time: 40ms
memory: 32152kb
Test #43:
score: 0
Accepted
time: 20ms
memory: 34368kb
Test #44:
score: 0
Accepted
time: 5ms
memory: 28328kb
Test #45:
score: 0
Accepted
time: 3ms
memory: 29312kb
Test #46:
score: 0
Accepted
time: 7ms
memory: 27904kb
Test #47:
score: 0
Accepted
time: 4ms
memory: 29704kb
Test #48:
score: 0
Accepted
time: 231ms
memory: 49184kb
Test #49:
score: 0
Accepted
time: 49ms
memory: 40156kb
Test #50:
score: 0
Accepted
time: 22ms
memory: 34512kb
Test #51:
score: 0
Accepted
time: 481ms
memory: 76824kb
Test #52:
score: 0
Accepted
time: 526ms
memory: 80348kb
Test #53:
score: 0
Accepted
time: 100ms
memory: 37652kb
Test #54:
score: 0
Accepted
time: 679ms
memory: 111996kb
Test #55:
score: 0
Accepted
time: 303ms
memory: 54300kb
Test #56:
score: 0
Accepted
time: 632ms
memory: 104492kb
Test #57:
score: 0
Accepted
time: 263ms
memory: 53372kb
Test #58:
score: 0
Accepted
time: 28ms
memory: 32344kb
Test #59:
score: 0
Accepted
time: 89ms
memory: 37408kb
Test #60:
score: 0
Accepted
time: 674ms
memory: 108956kb
Test #61:
score: 0
Accepted
time: 239ms
memory: 50876kb
Test #62:
score: 0
Accepted
time: 158ms
memory: 43528kb
Test #63:
score: 0
Accepted
time: 486ms
memory: 81048kb
Test #64:
score: 0
Accepted
time: 89ms
memory: 37588kb
Test #65:
score: 0
Accepted
time: 716ms
memory: 106000kb
Test #66:
score: 0
Accepted
time: 64ms
memory: 37304kb
Test #67:
score: 0
Accepted
time: 363ms
memory: 61588kb
Test #68:
score: 0
Accepted
time: 53ms
memory: 37008kb
Test #69:
score: 0
Accepted
time: 721ms
memory: 114152kb
Test #70:
score: 0
Accepted
time: 222ms
memory: 46124kb
Test #71:
score: 0
Accepted
time: 176ms
memory: 46424kb
Test #72:
score: 0
Accepted
time: 80ms
memory: 35728kb
Test #73:
score: 0
Accepted
time: 75ms
memory: 48084kb
Test #74:
score: 0
Accepted
time: 660ms
memory: 106560kb
Test #75:
score: 0
Accepted
time: 288ms
memory: 58720kb
Test #76:
score: 0
Accepted
time: 370ms
memory: 63368kb
Test #77:
score: 0
Accepted
time: 512ms
memory: 92236kb
Test #78:
score: 0
Accepted
time: 45ms
memory: 35776kb
Test #79:
score: 0
Accepted
time: 101ms
memory: 38764kb
Test #80:
score: 0
Accepted
time: 313ms
memory: 60020kb
Test #81:
score: 0
Accepted
time: 278ms
memory: 57620kb
Test #82:
score: 0
Accepted
time: 254ms
memory: 55448kb
Test #83:
score: 0
Accepted
time: 128ms
memory: 50524kb
Test #84:
score: 0
Accepted
time: 122ms
memory: 42288kb
Test #85:
score: 0
Accepted
time: 85ms
memory: 36616kb
Test #86:
score: 0
Accepted
time: 69ms
memory: 36744kb
Test #87:
score: 0
Accepted
time: 75ms
memory: 40660kb
Test #88:
score: 0
Accepted
time: 66ms
memory: 36864kb
Test #89:
score: 0
Accepted
time: 641ms
memory: 106508kb
Test #90:
score: 0
Accepted
time: 311ms
memory: 55976kb
Test #91:
score: 0
Accepted
time: 59ms
memory: 36128kb
Test #92:
score: 0
Accepted
time: 591ms
memory: 97716kb
Test #93:
score: 0
Accepted
time: 47ms
memory: 36528kb
Test #94:
score: 0
Accepted
time: 557ms
memory: 95056kb
Test #95:
score: 0
Accepted
time: 430ms
memory: 94896kb
Test #96:
score: 0
Accepted
time: 288ms
memory: 61256kb
Test #97:
score: 0
Accepted
time: 466ms
memory: 101276kb
Test #98:
score: 0
Accepted
time: 447ms
memory: 82008kb
Test #99:
score: 0
Accepted
time: 437ms
memory: 78816kb
Test #100:
score: 0
Accepted
time: 489ms
memory: 89972kb
Test #101:
score: 0
Accepted
time: 649ms
memory: 104636kb
Test #102:
score: 0
Accepted
time: 540ms
memory: 101152kb
Test #103:
score: 0
Accepted
time: 581ms
memory: 95876kb
Test #104:
score: 0
Accepted
time: 164ms
memory: 44096kb
Test #105:
score: 0
Accepted
time: 393ms
memory: 77432kb
Test #106:
score: 0
Accepted
time: 179ms
memory: 53640kb
Test #107:
score: 0
Accepted
time: 494ms
memory: 90760kb
Test #108:
score: 0
Accepted
time: 604ms
memory: 108620kb
Test #109:
score: 0
Accepted
time: 344ms
memory: 66620kb
Test #110:
score: 0
Accepted
time: 647ms
memory: 98364kb
Test #111:
score: 0
Accepted
time: 388ms
memory: 67968kb
Test #112:
score: 0
Accepted
time: 599ms
memory: 92412kb
Test #113:
score: 0
Accepted
time: 51ms
memory: 32120kb
Test #114:
score: 0
Accepted
time: 35ms
memory: 31772kb
Test #115:
score: 0
Accepted
time: 78ms
memory: 38040kb
Test #116:
score: 0
Accepted
time: 519ms
memory: 93420kb
Test #117:
score: 0
Accepted
time: 666ms
memory: 107992kb
Test #118:
score: 0
Accepted
time: 39ms
memory: 34120kb
Test #119:
score: 0
Accepted
time: 21ms
memory: 30648kb
Test #120:
score: 0
Accepted
time: 398ms
memory: 78052kb
Test #121:
score: 0
Accepted
time: 48ms
memory: 37908kb
Test #122:
score: 0
Accepted
time: 85ms
memory: 49912kb
Test #123:
score: 0
Accepted
time: 51ms
memory: 35044kb
Test #124:
score: 0
Accepted
time: 87ms
memory: 39752kb
Test #125:
score: 0
Accepted
time: 246ms
memory: 51856kb
Test #126:
score: 0
Accepted
time: 75ms
memory: 36316kb
Test #127:
score: 0
Accepted
time: 24ms
memory: 30868kb
Test #128:
score: 0
Accepted
time: 137ms
memory: 56572kb
Test #129:
score: 0
Accepted
time: 66ms
memory: 39552kb
Test #130:
score: 0
Accepted
time: 421ms
memory: 75760kb
Test #131:
score: 0
Accepted
time: 56ms
memory: 36120kb
Test #132:
score: 0
Accepted
time: 328ms
memory: 67756kb
Test #133:
score: 0
Accepted
time: 56ms
memory: 32788kb
Test #134:
score: 0
Accepted
time: 160ms
memory: 46416kb
Test #135:
score: 0
Accepted
time: 655ms
memory: 108836kb
Test #136:
score: 0
Accepted
time: 28ms
memory: 32408kb
Test #137:
score: 0
Accepted
time: 65ms
memory: 38200kb
Test #138:
score: 0
Accepted
time: 585ms
memory: 115224kb
Test #139:
score: 0
Accepted
time: 44ms
memory: 35156kb
Test #140:
score: 0
Accepted
time: 127ms
memory: 48856kb
Test #141:
score: 0
Accepted
time: 639ms
memory: 91380kb
Test #142:
score: 0
Accepted
time: 81ms
memory: 39396kb
Test #143:
score: 0
Accepted
time: 747ms
memory: 115236kb
Test #144:
score: 0
Accepted
time: 381ms
memory: 59684kb
Test #145:
score: 0
Accepted
time: 375ms
memory: 74072kb
Test #146:
score: 0
Accepted
time: 255ms
memory: 45268kb
Test #147:
score: 0
Accepted
time: 665ms
memory: 111092kb
Test #148:
score: 0
Accepted
time: 586ms
memory: 92624kb
Test #149:
score: 0
Accepted
time: 353ms
memory: 66768kb
Test #150:
score: 0
Accepted
time: 571ms
memory: 97992kb
Test #151:
score: 0
Accepted
time: 641ms
memory: 130796kb
Test #152:
score: 0
Accepted
time: 73ms
memory: 36336kb
Test #153:
score: 0
Accepted
time: 39ms
memory: 33492kb
Test #154:
score: 0
Accepted
time: 85ms
memory: 39564kb
Test #155:
score: 0
Accepted
time: 559ms
memory: 88620kb
Test #156:
score: 0
Accepted
time: 121ms
memory: 44676kb
Test #157:
score: 0
Accepted
time: 86ms
memory: 51384kb
Test #158:
score: 0
Accepted
time: 233ms
memory: 52952kb
Test #159:
score: 0
Accepted
time: 33ms
memory: 31184kb
Test #160:
score: 0
Accepted
time: 82ms
memory: 37020kb
Test #161:
score: 0
Accepted
time: 201ms
memory: 48516kb
Test #162:
score: 0
Accepted
time: 82ms
memory: 38824kb
Test #163:
score: 0
Accepted
time: 26ms
memory: 30804kb
Test #164:
score: 0
Accepted
time: 388ms
memory: 65176kb
Test #165:
score: 0
Accepted
time: 778ms
memory: 103740kb
Test #166:
score: 0
Accepted
time: 575ms
memory: 84856kb