Compilare: main.cpp: In function 'bool fct(long long unsigned int)': main.cpp:17:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(c==1) ^~ main.cpp:19:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' x/=2; ^ main.cpp:21:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return cont<=k; ~~~~^~~