In fact, you can define a method on any type you define in your package, not just structs. You cannot define a method on a type from another package, or on a basic type. package main import ( "fmt" "math" ) type MyFloat float64 func (f…
You can skip the index or value by assigning to _. If you only want the index, drop the ", value" entirely. package main import "fmt" func main() { pow := make([]) for i := range pow { pow[i] = i << uint(i) } for _, value := rang…
If the top-level type is just a type name, you can omit it from the elements of the literal. package main import "fmt" type Vertex struct { Lat, Long float64 } var m = map[string]Vertex { "Bell Labs": {40.68433,-74.39967}, "Google…
Sightseeing tour Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 9276 Accepted: 3924 Description The city executive board in Lund wants to construct a sightseeing tour by bus in Lund, so that tourists can see every corner of the beauti…
Euler Tour Tree最大的优点就是可以方便的维护子树信息,这点LCT是做不到的.为什么要维护子树信息呢..?我们可以用来做fully dynamic connectivity(online). Euler Tour Tree 维护将树中的边u--v变成u->v,v->u后的Euler Tour. 换根: 因为Euler Tour是一个环,那么我们可以在任意一个k->u的地方切断,然后把这段东西接到最后去,这样就把u变成根了 Link: 先换根,然后添加u->v与v->…
Tour Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 4307 Accepted: 1894 Description John Doe, a skilled pilot, enjoys traveling. While on vacation, he rents a small plane and starts visiting beautiful places. To save money, John must…
题目描述: 1015. Jill's Tour Paths Constraints Time Limit: 1 secs, Memory Limit: 32 MB Description Every year, Jill takes a bicycle tour between two villages. There are different routes she can take between these villages, but she does have an upper limit…
Sightseeing tour Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 8859 Accepted: 3728 Description The city executive board in Lund wants to construct a sightseeing tour by bus in Lund, so that tourists can see every corner of the beauti…
A quick tour of JSON libraries in Scala Update (18.11.2015): added spray-json-shapeless libraryUpdate (06.11.15): added circe library Some time ago I wrote a post on relational database access in Scala since I was looking for a library and there were…
