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Wrong Solution For Part2

This commit is contained in:
Karl Spickermann 2022-12-17 20:53:14 +01:00
parent aa4fe77c41
commit 81575263a4
1 changed files with 91 additions and 18 deletions
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109
day16/day16.go
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@ -16,8 +16,8 @@ type Valve struct {
}
type Route struct {
activeValves []string
remainingTime int
activeValves [2]string
remainingTime [2]int
remainingValves []string
pastMoves []string
releasedPressure int
@ -45,7 +45,12 @@ func main() {
}
currentValve := "AA"
remainingValves := valvesWithFlowRate[:len(valvesWithFlowRate)-1]
activeRountes := []Route{Route{[]string{currentValve}, 30, remainingValves, []string{}, 0}}
part2(currentValve, remainingValves, valves)
}
func part1(currentValve string, remainingValves []string, valves map[string]Valve) {
activeRountes := []Route{Route{[2]string{currentValve}, [2]int{30}, remainingValves, []string{}, 0}}
endedRoutes := []Route{}
for len(activeRountes) > 0 {
stepFindSolution(&valves, &activeRountes, &endedRoutes)
@ -59,6 +64,22 @@ func main() {
fmt.Println(highestPressureRelease)
}
func part2(currentValve string, remainingValves []string, valves map[string]Valve) {
activeRountes := []Route{Route{[2]string{currentValve, currentValve}, [2]int{26, 26}, remainingValves, []string{}, 0}}
endedRoutes := []Route{}
for len(activeRountes) > 0 {
stepFindSolution(&valves, &activeRountes, &endedRoutes)
}
highestPressureReleaseRoute := Route{}
highestPressureReleaseRoute.releasedPressure = 0
for _, route := range endedRoutes {
if route.releasedPressure > highestPressureReleaseRoute.releasedPressure {
highestPressureReleaseRoute = route
}
}
fmt.Println(highestPressureReleaseRoute.releasedPressure)
}
func falseSolutionPart1(currentValve string, remainingValves []string, valves map[string]Valve) {
fmt.Println(currentValve)
fmt.Println(remainingValves)
@ -98,27 +119,79 @@ func stepFindSolution(valves *map[string]Valve, remainingRoutes *[]Route, endedR
currentRoute := (*remainingRoutes)[len(*remainingRoutes)-1]
*remainingRoutes = (*remainingRoutes)[:len(*remainingRoutes)-1]
directions := make(map[string]int)
for _, remainingValve := range currentRoute.remainingValves {
movingTimeCost := (*valves)[currentRoute.activeValves[0]].routes[remainingValve]
openingTimeCost := 1
if currentRoute.remainingTime > movingTimeCost+openingTimeCost {
directions[remainingValve] = movingTimeCost + openingTimeCost
directions1 := getDirections(valves, currentRoute.remainingValves, currentRoute.activeValves[0], currentRoute.remainingTime[0])
directions2 := getDirections(valves, currentRoute.remainingValves, currentRoute.activeValves[1], currentRoute.remainingTime[1])
directionPairs := [][2]map[string]int{}
for valve1, cost1 := range directions1 {
if len(directions2) == 0 {
direction1 := map[string]int{valve1: cost1}
directionPairs = append(directionPairs, [2]map[string]int{direction1})
}
for valve2, cost2 := range directions2 {
if valve1 != valve2 {
direction1 := map[string]int{valve1: cost1}
direction2 := map[string]int{valve2: cost2}
directionPairs = append(directionPairs, [2]map[string]int{direction1, direction2})
}
}
}
if len(directions) == 0 {
if len(directionPairs) == 0 {
*endedRoutes = append(*endedRoutes, currentRoute)
}
for remainingValve, timeCost := range directions {
flowrate := (*valves)[remainingValve].flowRate
newRemainingTime := currentRoute.remainingTime - timeCost
newRemainingValves := helper.RemoveElement(currentRoute.remainingValves, remainingValve)
possibleGainedPressureReduction := newRemainingTime * flowrate
newReleasedPressure := currentRoute.releasedPressure + possibleGainedPressureReduction
newPastMoves := append(currentRoute.pastMoves, remainingValve)
*remainingRoutes = append(*remainingRoutes, Route{[]string{remainingValve}, newRemainingTime, newRemainingValves, newPastMoves, newReleasedPressure})
for _, pair := range directionPairs {
newRoute := Route{}
newPastMoves := currentRoute.pastMoves
newReleasedPressure := currentRoute.releasedPressure
newRemainingValves := currentRoute.remainingValves
for remainingValve, timeCost := range pair[0] {
newRemainingTime1, possibleGainedPressureReduction1 := getNewTimeAndRemainingValves(valves, remainingValve, currentRoute, timeCost)
newReleasedPressure += possibleGainedPressureReduction1
newPastMoves = append(newPastMoves, remainingValve)
newRemainingValves = helper.RemoveElement(newRemainingValves, remainingValve)
newRoute.remainingTime[0] = newRemainingTime1
newRoute.activeValves[0] = remainingValve
}
for remainingValve, timeCost := range pair[1] {
newRemainingTime2, possibleGainedPressureReduction2 := getNewTimeAndRemainingValves(valves, remainingValve, currentRoute, timeCost)
newReleasedPressure += possibleGainedPressureReduction2
newPastMoves = append(newPastMoves, remainingValve)
newRemainingValves = helper.RemoveElement(newRemainingValves, remainingValve)
newRoute.remainingTime[1] = newRemainingTime2
newRoute.activeValves[1] = remainingValve
}
newRoute.pastMoves = newPastMoves
newRoute.releasedPressure = newReleasedPressure
newRoute.remainingValves = newRemainingValves
*remainingRoutes = append(*remainingRoutes, newRoute)
}
//for remainingValve, timeCost := range directions1 {
// newRemainingTime, possibleGainedPressureReduction := getNewTimeAndRemainingValves(valves, remainingValve, currentRoute, timeCost)
// newRemainingValves := helper.RemoveElement(currentRoute.remainingValves, remainingValve)
// newReleasedPressure := currentRoute.releasedPressure + possibleGainedPressureReduction
// newPastMoves := append(currentRoute.pastMoves, remainingValve)
// *remainingRoutes = append(*remainingRoutes, Route{[2]string{remainingValve}, [2]int{newRemainingTime}, newRemainingValves, newPastMoves, newReleasedPressure})
//}
}
func getNewTimeAndRemainingValves(valves *map[string]Valve, remainingValve string, currentRoute Route, timeCost int) (int, int) {
flowrate := (*valves)[remainingValve].flowRate
newRemainingTime := currentRoute.remainingTime[0] - timeCost
possibleGainedPressureReduction := newRemainingTime * flowrate
return newRemainingTime, possibleGainedPressureReduction
}
func getDirections(valves *map[string]Valve, remainingValves []string, activeValve string, remainingTime int) map[string]int {
directions := make(map[string]int)
for _, remainingValve := range remainingValves {
movingTimeCost := (*valves)[activeValve].routes[remainingValve]
openingTimeCost := 1
if remainingTime > movingTimeCost+openingTimeCost {
directions[remainingValve] = movingTimeCost + openingTimeCost
}
}
return directions
}
func deepCopyMap(valves map[string]Valve) map[string]Valve {