zimeria.cpp: In function 'char* cuv(int)': zimeria.cpp:26: warning: array subscript has type 'char' zimeria.cpp: In function 'int main()': zimeria.cpp:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result zimeria.cpp:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result zimeria.cpp:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result