Compilare: user.cpp: In function ‘int main()’: user.cpp:8:15: warning: unused variable ‘j’ [-Wunused-variable] int n,k,i,j,pr=1,ul,suma=0,smax=0,lg; ^ user.cpp:8:39: warning: unused variable ‘lg’ [-Wunused-variable] int n,k,i,j,pr=1,ul,suma=0,smax=0,lg; ^ user.cpp:11:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d\n",&n,&k); ^ user.cpp:12:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (i=1; i<=n; i++) fscanf(f,"%d",&v[i]); ^