Compilare: main.cpp: In function 'void Ciur()': main.cpp:17:13: warning: unused variable 'c' [-Wunused-variable] int i,j,c=0,N; ^ main.cpp:17:17: warning: unused variable 'N' [-Wunused-variable] int i,j,c=0,N; ^ main.cpp: In function 'int main()': main.cpp:41:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(long unsigned int i=2; i<=n;i++) ^~~ main.cpp:56:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout<<nrdiv<<" "<<sumdiv; ^~~~