Compilare: user.cpp: In function ‘int main()’: user.cpp:8:13: warning: unused variable ‘n’ [-Wunused-variable] int i,t,n,x,y,prod,mem,sol[NMAX],k; ^ user.cpp:21:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&t); ^ user.cpp:24:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%s",nr); ^