Compilare: main.cpp: In function 'int main()': main.cpp:58:16: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 58 | while(k<strlen(s)) | ~^~~~~~~~~~ main.cpp:62:35: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 62 | while(isdigit(s[k])&&k<strlen(s)) | ~^~~~~~~~~~