16 lines
313 B
Go
16 lines
313 B
Go
|
// compile
|
||
|
|
|
||
|
|
// Copyright 2023 The Go Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
package p
|
||
|
|
|
||
|
|
func sign(p1, p2, p3 point) bool {
|
||
|
|
return (p1.x-p3.x)*(p2.y-p3.y)-(p2.x-p3.x)*(p1.y-p3.y) < 0
|
||
|
|
}
|
||
|
|
|
||
|
|
type point struct {
|
||
|
|
x, y int
|
||
|
|
}
|