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- #include <iostream>
- #include <fstream>
- using namespace std;
- ifstream fin("fill.in");
- ofstream fout("fill.out");
- int a[105][105];
- int n,m;
- int ctr;
- void Fill(int x, int y)
- {
- if(a[x][y]==1)
- {
- a[x][y]=0;
- ctr++;
- Fill(x-1,y);
- Fill(x+1,y);
- Fill(x,y-1);
- Fill(x,y+1);
- }
- }
- void Citire()
- {
- int i,j;
- fin>>n>>m;
- for(i=1;i<=n;i++)
- for(j=1;j<=m;j++)
- fin>>a[i][j];
- fin.close();
- }
- int main()
- {
- int i,j,nr=0;
- Citire();
- for(i=1;i<=n;i++)
- for(j=1;j<=m;j++)
- if(a[i][j]==1)
- {
- nr++;
- Fill(i,j);
- }
- fout<<nr;
- fout.close();
- return 0;
- }
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