Compilare: main.cpp: In function 'int main()': main.cpp:67:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for (int i = 1; i < v.size(); i++) | ~~^~~~~~~~~~ main.cpp:72:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | while (i < v.size() && isdigit(v[i])) | ~~^~~~~~~~~~ main.cpp:82:20: warning: 'cnt' may be used uninitialized in this function [-Wmaybe-uninitialized] 82 | cout << cnt << '\n'; | ^~~~