Compilare: user.cpp: In function ‘int main()’: user.cpp:7:28: warning: unused variable ‘x’ [-Wunused-variable] int i,v[25001],w[25001],n,x,m,p,s1=0,s2=0; ^ user.cpp:7:32: warning: unused variable ‘p’ [-Wunused-variable] int i,v[25001],w[25001],n,x,m,p,s1=0,s2=0; ^ user.cpp:8:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:9:40: 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]);s1+=v[i];} ^