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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#751890 | #6305. Chinese Checker | chenyitaoooo | WA | 7ms | 3900kb | C++23 | 1.8kb | 2024-11-15 21:12:18 | 2024-11-15 21:12:19 |
Judging History
answer
// start at 20:44
#include<bits/stdc++.h>
#define Ri register int
using namespace std;
int vis[22][22],vis2[22][22],n,ans;
void clr(int a[22][22]){
for(Ri i=1; i<=20; ++i){
for(Ri j=1; j<=20; ++j) a[i][j]=0;
}
}
void get(int &x,int &y){
int xx=x;
if(xx>9) xx=18-xx;
if(xx<=4) y+=4;
else y+=(xx-5);
}
int ck(int x,int y){
if(x<1 || x>=20 || y<1 || y>=20) return 0;
if(x>9) x=18-9;
if(x<=4){
return (y>4)&(y<=4+x);
}
else{
return (y>x-5)&(y<=13);
}
}
void dfs(int x,int y){
for(int i=1; i<=20; ++i){
if(abs(y-i)%2==0 && vis[x][(i+y)/2]==1 && ck(x,i)==1 && vis2[x][i]==0 && vis[x][i]==0){
int tot=0;
for(Ri j=1; j<abs(i-y); ++j){
tot+=vis[x][min(y,i)+j];
}
if(tot==1){
ans++;
vis2[x][i]=1;
dfs(x,i);
}
}
}
for(int i=1; i<=20; ++i){
if(abs(i-x)%2==0 && vis[(i+x)/2][y]==1 && ck(i,y)==1 && vis2[i][y]==0 && vis[i][y]==0){
int tot=0;
for(Ri j=1; j<abs(x-i); ++j){
tot+=vis[min(x,i)+j][y];
}
if(tot==1){
ans++;
vis2[i][y]=1;
dfs(i,y);
}
}
}
for(int i=-20; i<=20; i+=2){
if(ck(x+i,y+i)==1 && vis[(x+i+x)/2][(y+i+y)/2]==1 && vis2[x+i][y+i]==0 && vis[x+i][y+i]==0){
int tot=0;
for(Ri j=1; j<abs(i); ++j){
tot+=vis[min(x,x+i)+j][min(y,y+i)+j];
}
if(tot==1){
ans++;
vis2[x+i][y+i]=1;
dfs(x+i,y+i);
}
}
}
}
void Sol(){
clr(vis);
scanf("%d",&n);
for(Ri i=1; i<=n; ++i){
int x,y;
scanf("%d %d",&x,&y);
// printf("%d\n",ck(x,y));
get(x,y);
vis[x][y]=1;
}
ans=0;
for(Ri i=1; i<=20; ++i){
for(Ri j=1; j<=20; ++j){
if(vis[i][j]==0) continue;
clr(vis2);
vis2[i][j]=1,vis[i][j]=0;
dfs(i,j);
vis[i][j]=1;
}
}
printf("%d\n",ans);
}
int main(){
int T;
scanf("%d",&T);
while(T--) Sol();
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3900kb
input:
5 1 1 1 2 1 1 2 1 2 9 4 9 6 10 1 1 2 1 2 2 3 1 3 2 3 3 4 1 4 2 4 3 4 4 10 1 1 2 1 2 2 5 7 3 2 3 3 4 1 4 2 4 3 4 4
output:
0 1 2 6 13
result:
ok 5 number(s): "0 1 2 6 13"
Test #2:
score: -100
Wrong Answer
time: 7ms
memory: 3808kb
input:
100 81 1 1 16 1 11 4 13 8 12 3 12 12 11 1 4 2 9 5 8 10 5 5 9 7 3 2 14 1 7 11 13 7 10 2 8 3 9 8 10 6 12 10 6 7 11 2 7 3 13 12 8 6 17 1 10 5 5 12 13 9 13 1 9 4 5 10 11 8 13 4 5 4 9 1 7 8 5 6 13 13 5 1 9 3 8 8 8 5 13 2 13 5 11 3 9 2 6 4 3 3 8 2 13 11 8 7 5 7 6 10 11 9 10 3 11 10 6 3 7 1 4 4 15 2 7 2 3 ...
output:
258 449 220 654 355 265 223 70 385 110 1 126 114 77 19 159 317 269 33 236 78 184 237 39 114 309 332 384 117 105 368 287 46 8 130 162 279 292 76 171 294 90 33 80 100 217 53 149 447 123 163 234 0 124 82 32 45 28 79 211 188 52 410 195 326 27 60 0 292 105 118 426 23 405 100 127 68 422 80 21 522 453 6 27...
result:
wrong answer 1st numbers differ - expected: '190', found: '258'