/in/foo.cc:14:7: error: 'll' does not name a type
 const ll maxn=100005;
       ^~
/in/foo.cc:15:1: error: 'll' does not name a type
 ll c;
 ^~
/in/foo.cc:16:1: error: 'll' does not name a type
 ll n;
 ^~
/in/foo.cc:18:2: error: 'll' does not name a type
  ll x,y,v;
  ^~
/in/foo.cc:20:1: error: 'll' does not name a type
 ll dis[maxn],len[maxn],sum[maxn];
 ^~
/in/foo.cc:21:1: error: 'll' does not name a type
 ll f[maxn];
 ^~
/in/foo.cc:22:1: error: 'll' does not name a type
 ll w[maxn];
 ^~
/in/foo.cc:23:1: error: 'll' does not name a type
 ll main()
 ^~