OJ-Problems-Source/HDOJ/2952_autoAC.cpp

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#include <iostream>
#include <algorithm>
#include <cstdio>
#include <cstring>
using namespace std;
int H,W;
char Map[105][105];
int direct[][2] = {{-1,0}, {1,0}, {0,-1}, {0, 1}};
void DFS(int i, int j) {
if(i<1 || i>H || j<1 || j>W)
return;
Map[i][j] = '.';
for(int k=0; k<4; ++k)
if(Map[i+direct[k][0]][j+direct[k][1]] == '#')
DFS(i+direct[k][0], j+direct[k][1]);
}
int main()
{
int T;
cin >> T;
while(cin >> H >> W) {
for(int i=1; i<=H; ++i)
for(int j=1; j<=W; ++j)
cin >> Map[i][j];
int counts = 0;
for(int i=1; i<=H; ++i)
for(int j=1; j<=W; ++j)
if(Map[i][j] == '#') {
DFS(i, j);
++counts;
}
cout << counts << endl;
}
return 0;
}