zimeria.cpp: In function 'char* cuv(int)': zimeria.cpp:35: warning: array subscript has type 'char' zimeria.cpp: In function 'int main()': zimeria.cpp:43: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result zimeria.cpp:44: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result zimeria.cpp:48: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result