Compilare: main.cpp: In function 'int main()': main.cpp:34:18: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int i=0;i<strlen(s);i++) | ~^~~~~~~~~~ main.cpp:46:21: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 46 | while(i < strlen(s) && isnum(s[i])) | ~~^~~~~~~~~~~