Compilare: user.cpp: In function ‘int alg_lee(int)’: user.cpp:35:22: warning: suggest parentheses around assignment used as truth value [-Wparentheses] viz[i][j]=b[i][j]=0; ~~~~~~~^~ user.cpp:34:1: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int j =1; j<=n ;++j) ^~~ user.cpp:36:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ el k ; k.i=1 , k.j=1; ^~ user.cpp: In function ‘int main()’: user.cpp:81:26: warning: unused variable ‘m’ [-Wunused-variable] int st=0 , dr=5000, m; ^ user.cpp:91:14: warning: ‘rez’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<rez; ^