func mergeFactors(a, b map[int]int) map[int]int {
newFactors := map[int]int{}
for key, _ := range a {
newFactors[key] = misc.Max(a[key], b[key])
}
for key, _ := range b {
newFactors[key] = misc.Max(a[key], b[key])
}
return newFactors
}
func maxTotal(triStr string) int {
lines := strings.Split(triStr, "\n")
triangle := [][]int{}
for _, line := range lines {
newRow := []int{}
elements := strings.Split(line, " ")
for _, elem := range elements {
x, err := strconv.Atoi(elem)
if err == nil {
newRow = append(newRow, x)
}
}
if len(newRow) > 0 {
triangle = append(triangle, newRow)
}
}
// Transform the triangle so that any cell will contain the maximum value
// of a downward path starting at that point
for i := len(triangle) - 2; i >= 0; i-- {
for j, _ := range triangle[i] {
left := triangle[i+1][j]
right := triangle[i+1][j+1]
triangle[i][j] += misc.Max(left, right)
}
}
// Return the maximum path starting from the top of the triangle
return triangle[0][0]
}
func findMaxProduct(numbers []int, length int) int {
maxProduct := -1
for i := 0; i < len(numbers)-length+1; i++ {
maxProduct = misc.Max(misc.Product(numbers[i:i+length]), maxProduct)
}
return maxProduct
}
func main() {
windowSize := 13
maxProduct := 0
for i := 0; i < len(n)-windowSize+1; i++ {
maxProduct = misc.Max(digitsProduct(n[i:i+windowSize]), maxProduct)
}
fmt.Println("Max product: ", maxProduct)
}
func main() {
// Translate string representation into 2D slice representation
grid := [][]int{}
str := s
for i, row := range strings.Split(str, ",") {
grid = append(grid, []int{})
for _, digits := range strings.Fields(row) {
number, _ := strconv.Atoi(digits)
grid[i] = append(grid[i], number)
}
}
// Grid is already a slice of the rows
sequences := append(grid, getColumns(grid)...)
sequences = append(sequences, getDiagonals(grid)...)
length := 4
maxProduct := -1
fmt.Println(sequences)
for _, seq := range sequences {
maxProduct = misc.Max(maxProduct, findMaxProduct(seq, length))
}
fmt.Println("Largest product: ", maxProduct)
}
