Compilare: user.cpp: In function ‘int ord(int, int, int, int)’: user.cpp:59:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:71:9: warning: unused variable ‘p1’ [-Wunused-variable] int p1=0,p2=n+1; ^ user.cpp:71:14: warning: unused variable ‘p2’ [-Wunused-variable] int p1=0,p2=n+1; ^ user.cpp:66:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&n,&k); ^ user.cpp:69:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a[i]); ^