Compilare: main.cpp: In function 'int main()': main.cpp:20:23: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 20 | for (int j = 0; j < strlen(aux); j ++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'bool constanta()': main.cpp:91:12: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 91 | return r; | ^ main.cpp:70:10: note: 'r' was declared here 70 | bool r; | ^