Compilare: user.cpp: In function ‘int main()’: user.cpp:25:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,p,p1,t,s1,s2,max,n; ^ user.cpp:28:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&n); ^ user.cpp:30:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d" ,&A[i],&B[i]); ^ user.cpp:46:21: warning: ‘p1’ may be used uninitialized in this function [-Wmaybe-uninitialized] vf[p1]=1; ^