Hiring process8 levels
  1. 1 IQ Test
  2. 2 Additional Online Test (If Required)
  3. 3 Office Interview with Hiring Manager
  4. 4 Unpaid Test Task (Motivation Check)
  5. 5 Paid Test Task and Follow-Up Interview
  6. 6 Iterative Paid Test Tasks
  7. 7 Office Verification
  8. 8 Final Interview with the Founder

Problems > Three Kinds of Brackets

Three Kinds of Brackets

Difficulty: 1200 2000 ms 128 MB

strings stack

The string uses three bracket kinds: (), [], {}. Is it properly balanced and properly nested?

Input: one line with a bracket string.

Output: YES or NO.

Constraints:

  • 1 ≤ |S| ≤ 105

Sample Tests

Input 1
{[()]}
Output 1
YES
Input 2
([)]
Output 2
NO

Read the Editorial Statistics

Discussion (opens after you solve — no spoilers before)

No comments yet.

Submit Your Solution

Log in or create a free account to run and submit code.
Ctrl+Enter submit · Ctrl+Space autocomplete · F11 fullscreen