Write a function to count the frequency of each character in a string.
MediumProblem Statement
Write a function to count the frequency of each character in a string.
Sample Input
A string: "hello"
Sample Output
Character frequencies: {h=1, e=1, l=2, o=1}
Limits
Time: 2s · Memory: 256 MB
Code Editor
00:00
fun generatePascalsTriangle(rows: Int): List<List<Int>> {
// Add your code here to generate Pascal's Triangle
}
fun main() {
val rows = 5
val triangle = generatePascalsTriangle(rows)
triangle.forEach { println(it.joinToString(" ")) }
}
Input
A string: "hello"
Expected Output
Character frequencies: {h=1, e=1, l=2, o=1}