Compilare: user.cpp: In function ‘int main()’: user.cpp:12:19: warning: unused variable ‘j’ [-Wunused-variable] int caz,n,k,i,j,min,max,flag,size,sol; ^ user.cpp:12:34: warning: unused variable ‘size’ [-Wunused-variable] int caz,n,k,i,j,min,max,flag,size,sol; ^ user.cpp:15:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&caz,&n,&k); ^ user.cpp:17:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[i]); ^