84 lines
1.5 KiB
C
84 lines
1.5 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int map[90][90];
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int vis[90][90];
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void reset_map(int incmaxx,int incmaxy)
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{
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memset(map,0,sizeof(int)*90*90);
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memset(vis,0,sizeof(int)*90*90);
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int i;
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for(i=0;i<incmaxx+2;i++)
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{
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vis[i][0]=1;
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vis[i][incmaxy+1]=1;
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}
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for(i=0;i<incmaxy+2;i++)
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{
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vis[0][i]=1;
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vis[incmaxx+1][i]=1;
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}
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}
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void dfs(int x,int y)
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{
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if(map[x][y]==0||vis[x][y]==1) return;
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vis[x][y]=1;
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dfs(x-1,y);
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dfs(x+1,y);
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dfs(x,y-1);
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dfs(x,y+1);
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}
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void deal(int incmaxx,int incmaxy)
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{
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int i,j;
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int count=0;
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for(i=1;i<incmaxx+1;i++)
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{
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for(j=1;j<incmaxy+1;j++)
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{
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if(map[i][j]==1&&vis[i][j]==0)
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{
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count++;
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dfs(i,j);
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}
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}
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}
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printf("%d\n",count);
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}
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char buff[128];
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int main()
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{
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int all,maxx,maxy,i,j;
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#ifndef __GNUC__
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freopen("D:\\std.txt","r",stdin);
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#endif
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scanf("%d",&all);
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for(;all>0;all--)
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{
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scanf("%d %d%*c",&maxx,&maxy);
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reset_map(maxx,maxy);
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for(i=0;i<maxx;i++)
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{
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memset(buff,0,128);
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gets(buff);
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for(j=0;j<maxy;j++)
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{
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if(buff[j]=='0')
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{
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map[i+1][j+1]=0;
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}
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else
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{
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map[i+1][j+1]=1;
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}
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}
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}
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deal(maxx,maxy);
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}
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return 0;
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}
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Enter file contents here
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