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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#104853 | #4234. Tic Tac Toe Counting | Yanagi_Origami# | WA | 86ms | 7340kb | C++20 | 3.3kb | 2023-05-12 07:15:47 | 2023-05-12 07:15:50 |
Judging History
answer
#include <iostream>
#include <cstdio>
#include <cmath>
#include <map>
#include <algorithm>
using namespace std;
#define rep(i,a,b) for(int i=a;i<=b;i++)
typedef long long ll;
char s[10],S[4][4];
map<ll,ll> ans1,ans2,vis;
ll encode(char a[4][4]){
ll res=0;
rep(i,1,3) rep(j,1,3){
if(a[i][j]=='X'){
res=res*3+1;
}
if(a[i][j]=='O'){
res=res*3+2;
}
if(a[i][j]=='.'){
res=res*3;
}
}
return res;
}
int check(char a[4][4]){
int ans=0;
rep(i,1,3){
if(a[i][1]==a[i][2]&&a[i][2]==a[i][3]){
if(a[i][1]=='X'){
ans|=1;
}
if(a[i][1]=='O'){
ans|=2;
}
}
}
rep(i,1,3){
if(a[1][i]==a[2][i]&&a[2][i]==a[3][i]){
if(a[1][i]=='X'){
ans|=1;
}
if(a[1][i]=='O'){
ans|=2;
}
}
}
if(a[1][1]==a[2][2]&&a[2][2]==a[3][3]){
if(a[2][2]=='X'){
ans|=1;
}
if(a[2][2]=='O'){
ans|=2;
}
}
if(a[3][1]==a[2][2]&&a[2][2]==a[1][3]){
if(a[2][2]=='X'){
ans|=1;
}
if(a[2][2]=='O'){
ans|=2;
}
}
//if(ans!=0) puts("HERE");
return ans;
}
pair<ll,ll> dfs(char a[4][4]){
ll cd=encode(a);
//printf("%lld\n",cd);
if(vis[cd]){
return make_pair(ans1[cd],ans2[cd]);
}
vis[cd]=1;
ll res = check(a);
if(res==3){
ans1[cd]=-1,ans2[cd]=-1;
return make_pair(ans1[cd],ans2[cd]);
}
if(res==1){
ans1[cd]=1,ans2[cd]=0;
return make_pair(ans1[cd],ans2[cd]);
}
if(res==2){
ans1[cd]=0,ans2[cd]=1;
return make_pair(ans1[cd],ans2[cd]);
}
int s1=0,s2=0;
rep(i,1,3) rep(j,1,3){
if(a[i][j]=='X') s1++;
if(a[i][j]=='O') s2++;
}
ans1[cd]=0,ans2[cd]=0;
if(s1==s2){
rep(i,1,3) rep(j,1,3){
if(a[i][j]=='.'){
a[i][j]='X';
auto ret = dfs(a);
//puts("why?");
a[i][j]='.';
ans1[cd]+=ret.first;
ans2[cd]+=ret.second;
}
}
}else{
if(s1==s2+1){
rep(i,1,3) rep(j,1,3){
if(a[i][j]=='.'){
a[i][j]='O';
auto ret = dfs(a);
//puts("why??");
a[i][j]='.';
ans1[cd]+=ret.first;
ans2[cd]+=ret.second;
}
}
}else{
ans1[cd]=-1,ans2[cd]=-1;
return make_pair(ans1[cd],ans2[cd]);
}
}
//printf("#%lld %lld %lld\n",cd,ans1[cd],ans2[cd]);
return make_pair(ans1[cd],ans2[cd]);
}
int main(){
char a[4][4]={0};
rep(i,1,3) rep(j,1,3) a[i][j]='.';
dfs(a);
int T; scanf("%d",&T);
while(T--){
scanf("%s",s+1);
rep(i,1,3) rep(j,1,3){
a[i][j]=s[(i-1)*3+j];
}
auto ans = dfs(a);
printf("%lld %lld\n",ans.first,ans.second);
}
return 0;
}
/*
4
XX..O....
X...OX...
OOOX.X.X.
OOOXXX...
*/
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 11ms
memory: 4552kb
input:
4 XX..O.... X...OX... OOOX.X.X. OOOXXX...
output:
191 194 232 200 0 1 -1 -1
result:
ok 4 lines
Test #2:
score: 0
Accepted
time: 28ms
memory: 4696kb
input:
100000 ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......... ......
output:
131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 131184 77904 1...
result:
ok 100000 lines
Test #3:
score: -100
Wrong Answer
time: 86ms
memory: 7340kb
input:
100000 ......... X........ O........ .X....... XX....... OX....... .O....... XO....... OO....... ..X...... X.X...... O.X...... .XX...... XXX...... OXX...... .OX...... XOX...... OOX...... ..O...... X.O...... O.O...... .XO...... XXO...... OXO...... .OO...... XOO...... OOO...... ...X..... X..X..... O.....
output:
131184 77904 14652 7896 -1 -1 14232 10176 -1 -1 1798 1276 -1 -1 2048 756 -1 -1 14652 7896 -1 -1 1832 1132 -1 -1 1 0 220 248 2048 756 268 144 -1 -1 -1 -1 1832 1132 -1 -1 1798 1276 220 248 -1 -1 -1 -1 -1 -1 0 1 14232 10176 -1 -1 1798 1276 -1 -1 -1 -1 264 188 1868 1080 239 126 -1 -1 -1 -1 -1 -1 312 152...
result:
wrong answer 14th lines differ - expected: '-1 -1', found: '1 0'