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chore: add day 11
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xuu
2023-12-12 13:44:28 -07:00
parent 30241aa5d3
commit 596f3e7533
10 changed files with 592 additions and 21 deletions
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30
day10/main.go
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@@ -113,8 +113,7 @@ func (m *Path) readLine(text string) {
}
func (m *Path) buildPath() int {
m.start()
for m.next() {
}
for m.next() {}
return (len(m.p) + 1) / 2
}
func (m *Path) start() {
@@ -178,23 +177,15 @@ func (m *Path) next() bool {
last := n.whence
next := m.head.left.whence
switch (last<<4)|next {
case 0x11, 0x22: m.n.value = '|' // UP UP, DN DN
switch last<<4|next {
case UP<<4|UP, DN<<4|DN: m.head.value = '|' // UP UP, DN DN
case LF<<4|LF, RT<<4|RT: m.head.value = '-' // LF LF, RT RT
case 0x13: m.head.value = 'J' // UP LF
case 0x14: m.head.value = 'L' // UP RT
case 0x23: m.head.value = '7' // DN LF
case 0x24: m.head.value = 'F' // DN RT
case 0x33, 0x44: m.head.value = '-' // LF LF, RT RT
case 0x31: m.head.value = '7' // LF UP
case 0x32: m.head.value = 'J' // LF DN
case 0x41: m.head.value = 'F' // RT UP
case 0x42: m.head.value = 'L' // RT DN
case UP<<4|RT, LF<<4|DN: m.head.value = 'J' // UP RT, LT DN
case UP<<4|LF, RT<<4|DN: m.head.value = 'L' // UP RT, RT DN
case DN<<4|RT, LF<<4|UP: m.head.value = '7' // DN LF, LF UP
case RT<<4|UP, DN<<4|LF: m.head.value = 'F' // DN LF, RT UP
}
return false
@@ -210,7 +201,7 @@ const (
ST int8 = iota
UP
DN
LF
LF
RT
)
@@ -255,7 +246,6 @@ func (m *Path) peek(d int8) *node {
if any(r, 'J', '|', 'L', 'S') {
return &node{value: r, whence: UP, pos: p}
}
case LF:
x, y := toXY(m.n.pos, m.w)
if x == 0 {
@@ -267,7 +257,6 @@ func (m *Path) peek(d int8) *node {
if any(r, 'F', '-', 'L', 'S') {
return &node{value: r, whence: RT, pos: p}
}
case RT:
x, y := toXY(m.n.pos, m.w)
if x == m.w {
@@ -278,7 +267,6 @@ func (m *Path) peek(d int8) *node {
if any(r, '7', '-', 'J', 'S') {
return &node{value: r, whence: LF, pos: p}
}
}
return nil
}