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  1. Prepare
  2. Algorithms
  3. Implementation
  4. Counting Valleys
  5. Discussions

Counting Valleys

  • henrylong7191
     + 0 comments

    ` function countingValleys(steps: number, path: string): number {

    let level = 0;
let ans = 0;    

for (let p of path) {
    if (p === 'D') {
        level --;
    } else if (p === 'U') {
        level ++;
    }
    if (level === 0 && p === 'U') {
        ans ++;
    }
}
return ans;

    }