Compilare: user.cpp: In function ‘void rezolva()’: user.cpp:11: warning: array subscript has type ‘char’ user.cpp:14: warning: array subscript has type ‘char’ user.cpp:17: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:35: warning: array subscript has type ‘char’ user.cpp:32: warning: unused variable ‘x’ user.cpp:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:36: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result