Compilare: user.cpp: In function ‘void facut()’: user.cpp:49:15: warning: operation on ‘lg’ may be undefined [-Wsequence-point] L[++lg]=abs(viz[L[lg-1]]); ^~~~ user.cpp: In function ‘int main()’: user.cpp:78:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;++i) ^~~ user.cpp:80:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ g<<sol; ^