robot4.cpp: In function 'void Deplasare()': robot4.cpp:26: warning: operation on 'nr' may be undefined robot4.cpp:31: warning: operation on 'nr' may be undefined robot4.cpp:36: warning: operation on 'nr' may be undefined robot4.cpp:41: warning: operation on 'nr' may be undefined robot4.cpp: In function 'void citire()': robot4.cpp:55: warning: unused variable 'a' robot4.cpp:58: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result robot4.cpp:59: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result robot4.cpp:60: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result robot4.cpp:70: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result