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attempt 1 at day 2 part 2

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This commit is contained in:
Neil Hanlon 2024-12-06 12:30:33 -05:00
parent fadc27b223
commit 8bc9fc8517
Signed by: neil
GPG Key ID: 705BC21EC3C70F34
1 changed files with 22 additions and 7 deletions
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29
02/main.go
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@ -12,7 +12,8 @@ type Report struct {
levels []int levels []int
valid bool valid bool
direction string direction string
flag bool flag int
dampened bool
} }
// Reports stored one per line with levels in each column. // Reports stored one per line with levels in each column.
@ -32,7 +33,8 @@ func main() {
number: idx, number: idx,
valid: true, valid: true,
direction: "ASC", direction: "ASC",
flag: false, flag: -1,
dampened: false,
} }
for _, field := range reportFields { for _, field := range reportFields {
reportVal, err := strconv.Atoi(field) reportVal, err := strconv.Atoi(field)
@ -47,29 +49,39 @@ func main() {
var valid int var valid int
for _, report := range reports { for _, report := range reports {
fmt.Printf("%v\n", report)
if report.IsValid() { if report.IsValid() {
valid++ valid++
} }
fmt.Printf("%v\n", report)
} }
fmt.Printf("Total: %v Valid %v\n", len(reports), valid) fmt.Printf("Total: %v Valid %v\n", len(reports), valid)
} }
func (report *Report) IsValid() bool { func (report *Report) IsValid() bool {
if report.flag > 0 {
report.dampened = true
}
// Determine direction // Determine direction
if len(report.levels) >= 1 { if len(report.levels) >= 1 {
report.direction = DetermineDirection(report.levels[0], report.levels[1]) report.direction = DetermineDirection(report.levels[0], report.levels[1])
report.valid = report.ValidDirection() && report.ValidDeltas() report.valid = report.ValidDirection() && report.ValidDeltas()
} }
// if !report.valid && !report.flag { if !report.valid && report.flag > 0 && !report.dampened {
// report.flag = true fmt.Printf("DAMPING:%v\n", report.levels)
// return report.IsValid() report.levels = remove(report.levels, report.flag)
// } fmt.Printf("DAMPING:%v\n", report.levels)
return report.IsValid()
}
return report.valid return report.valid
} }
func remove(slice []int, s int) []int {
return append(slice[:s], slice[s+1:]...)
}
func (report *Report) ValidDeltas() bool { func (report *Report) ValidDeltas() bool {
for idx, val := range report.levels { for idx, val := range report.levels {
if prev := idx - 1; prev < 0 { if prev := idx - 1; prev < 0 {
@ -78,6 +90,7 @@ func (report *Report) ValidDeltas() bool {
last := report.levels[idx-1] last := report.levels[idx-1]
delta := Abs(val - last) delta := Abs(val - last)
if delta < 1 || delta > 3 { if delta < 1 || delta > 3 {
report.flag = idx
return false return false
} }
} }
@ -93,10 +106,12 @@ func (report *Report) ValidDirection() bool {
switch report.direction { switch report.direction {
case "ASC": case "ASC":
if last > val { if last > val {
report.flag = idx
return false return false
} }
case "DESC": case "DESC":
if last < val { if last < val {
report.flag = idx
return false return false
} }
default: default: