Compilare: user.cpp: In function ‘int main()’: user.cpp:8:16: warning: variable ‘m’ set but not used [-Wunused-but-set-variable] int vv,n,x,m,i,j=0,c,cmax=0,l,nr=0,oo; ^ user.cpp:11:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&vv); ^ user.cpp:12:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:18:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&x); ^