Compilare: user.cpp: In function ‘int main()’: user.cpp:23:11: warning: unused variable ‘m’ [-Wunused-variable] int n,m,i,j,nr,ok=0,max=0,p,cnt=1; ^ user.cpp:23:15: warning: unused variable ‘j’ [-Wunused-variable] int n,m,i,j,nr,ok=0,max=0,p,cnt=1; ^ user.cpp:23:20: warning: unused variable ‘ok’ [-Wunused-variable] int n,m,i,j,nr,ok=0,max=0,p,cnt=1; ^ user.cpp:24:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ user.cpp:27:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&v[i]); ^