Compilare: user.cpp: In function ‘void fct(int, int)’: user.cpp:23:6: warning: unused variable ‘x’ [-Wunused-variable] char x='\\'; ^ user.cpp: In function ‘int main()’: user.cpp:34:26: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] {int okk=0,cur=0,w=0,i=1,ok=0; ^ user.cpp:37:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] while(c!='\n'){fscanf(f,"%c",&c); ^