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- #include <iostream>
- #include <fstream>
- #include <cstdlib>
- using namespace std;
- ifstream f("bila.in");
- ofstream g("bila.out");
- int a[101][101],n,m,x,y,i1,j1,i2,j2,s,b[101][101];
- int d[4]= {-1,0,1,0}, dc[4]= {0,1,0,-1};
- void afisare(int k)
- {
- if(k>s)
- s=k;
- }
- void bkt(int k, int l, int c)
- {
- for(int i=0; i<4; i++)
- {
- int x=l+d[i], y=c+dc[i];
- if(x>0 && x<=n && y>0 && y<=m && a[l][c]>a[x][y] && b[x][y]==0)
- {
- b[x][y]=k;
- if(x==1 or x==n or y==1 or y==m)
- afisare(k);
- else
- bkt(k+1,x,y);
- b[x][y]=0;
- }
- }
- }
- int main()
- {
- f>>n>>m;
- for(int i=1;i<=n;i++)
- for(int j=1;j<=m;j++)
- f>>a[i][j];
- f>>x>>y;
- b[x][y]=1;
- bkt(2,x,y);
- g<<s;
- return 0;
- }
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