0920c

func main() {
    arrayLength := ReadInt32()
    array := make([]int, arrayLength)
    for numberIndex := 0; numberIndex < arrayLength; numberIndex++ {
        array[numberIndex] = ReadInt32()
    }
    indexesDynamic := ReadString()
    var maxElement, minElement int
    maxAndMinAreSetted := false
    nextAfterPreviousNonDynamicIndex := 0
    result := true
    for index := 0; index < len(indexesDynamic); index++ {
        if !maxAndMinAreSetted || maxElement < array[index] {
            maxElement = array[index]
        }
        if !maxAndMinAreSetted || minElement > array[index] {
            minElement = array[index]
        }
        maxAndMinAreSetted = true
        if indexesDynamic[index] == '0' {
            if minElement != nextAfterPreviousNonDynamicIndex+1 || maxElement != index+1 {
                result = false
                break
            }
            nextAfterPreviousNonDynamicIndex = index + 1
            maxAndMinAreSetted = false
        }
    }
    var answer string
    if result {
        answer = "YES"
    } else {
        answer = "NO"
    }
    writer.WriteString(answer + "\n")
}