Compilare: user.cpp: In function ‘int eval(int)’: user.cpp:63:24: warning: unused variable ‘x’ [-Wunused-variable] int v[11],i,nr,poz,x; ^ user.cpp: In function ‘int main()’: user.cpp:89:14: warning: unused variable ‘sol’ [-Wunused-variable] int fi,x,sol; ^ user.cpp:91:22: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets (s,300,fin); // s e expresia ^ user.cpp:96:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&x); ^ user.cpp:106:36: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets (fct[ch-'A'],300,fin); ^ user.cpp: In function ‘int eval(int)’: user.cpp:79:14: warning: ‘nr’ is used uninitialized in this function [-Wuninitialized] v[++i]=nr; ^