235.cpp: In function 'void Citeste()': 235.cpp:27: warning: operation on 'm' may be undefined 235.cpp:29: warning: operation on 'm' may be undefined 235.cpp:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result 235.cpp:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result