Compilare: user.cpp: In function ‘void dfs(pozitie)’: user.cpp:33:31: warning: NULL used in arithmetic [-Wpointer-arith] if(v[nw.lin][nw.col]!=NULL && fv[nw.lin][nw.col]==0 && v[n.lin][n.col]==v[nw.lin][nw.col]) ^ user.cpp: In function ‘int main()’: user.cpp:52:34: warning: narrowing conversion of ‘i’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] dfs((pozitie){i,j}); ^ user.cpp:52:34: warning: narrowing conversion of ‘j’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:62:45: warning: narrowing conversion of ‘i’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q.push((pozitie){i,j}); ^ user.cpp:62:45: warning: narrowing conversion of ‘j’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing]