Eroare de compilare: main.cpp: In function 'int main()': main.cpp:151:15: error: 'strlen' was not declared in this scope 151 | int len = strlen(num); | ^~~~~~ main.cpp:6:1: note: 'strlen' is defined in header '<cstring>'; did you forget to '#include <cstring>'? 5 | #include <fstream> +++ |+#include <cstring> 6 | using namespace std; main.cpp:152:26: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 152 | for (size_t i = 0; i < len; i++) | ~~^~~~~ Non zero exit status: 1