Compilare: main.cpp: In function 'int main()': main.cpp:18:16: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 18 | while(i<strlen(corect)) | ~^~~~~~~~~~~~~~~ main.cpp:22:33: warning: array subscript has type 'char' [-Wchar-subscripts] 22 | if(!viz[corect[i]]) | ~~~~~~~~^ main.cpp:25:33: warning: array subscript has type 'char' [-Wchar-subscripts] 25 | viz[corect[i]] = 1; | ~~~~~~~~^