GirlCat
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1020 Accepted Submission(s): 642
Under the influence of Kotori, many girls and cats are playing ``Hide and Seek'' together.
Koroti shots a photo. The size of this photo is n\times m, each pixel of the photo is a character of the lowercase(from `a' to `z').
Kotori wants to know how many girls and how many cats are there in the photo.
We define a girl as -- we choose a point as the start, passing by 4 different connected points continuously, and the four characters are exactly ``girl'' in the order.
We define two girls are different if there is at least a point of the two girls are different.
We define a cat as -- we choose a point as the start, passing by 3 different connected points continuously, and the three characters are exactly ``cat'' in the order.
We define two cats are different if there is at least a point of the two cats are different.
Two points are regarded to be connected if and only if they share a common edge.
As for each case, the first line are two integers n and m, which are the height and the width of the photo.
Then there are n lines followed, and there are m characters of each line, which are the the details of the photo.
It is guaranteed that:
T is about 50.
1\leq n\leq 1000.
1\leq m\leq 1000.
\sum (n\times m)\leq 2\times 10^6.
There should be 2 integers in the line with a blank between them representing the number of girls and cats respectively.
Please make sure that there is no extra blank.
#include <bits/stdc++.h>
using namespace std;
int t, n, m;
char a[1003][1003];
int ans1, ans2;
int dx[] = {0, 0, 1, -1};
int dy[] = {1, -1, 0, 0};
int dfs(int i, int j, int k, int f){
for(int t = 0; t < 4; t++){
int ii = i + dx[t];
int jj = j + dy[t];
if(ii >= 0 &&ii < n && jj >= 0 && jj < m){
if(f){
if(k == 1 && a[ii][jj] == 'i'){
dfs(ii, jj, 2, f);
}
if(k == 2 && a[ii][jj] == 'r'){
dfs(ii, jj, 3, f);
}
if(k == 3&& a[ii][jj] == 'l'){
ans1++;
}
}
else {
if(k == 1 && a[ii][jj] == 'a'){
dfs(ii, jj, 2, f);
}
if(k == 2 && a[ii][jj] == 't'){
ans2++;
}
}
}
}
}
int main(){
scanf("%d", &t);
while(t--){
scanf("%d%d", &n, &m);
for(int i = 0; i < n; i++){
scanf("%s", a[i]);
}
ans1 = 0, ans2 = 0;
for(int i = 0; i < n; i++){
for(int j = 0; j < m; j++){
if(a[i][j] == 'g'){
dfs(i, j, 1, 1);
}
if(a[i][j] == 'c'){
dfs(i, j, 1, 0);
}
}
}
printf("%d %d\n", ans1, ans2);
}
}