tasks.json

[
  {
    "id": 1,
    "difficulty": "easy",
    "description": "Return indices of two numbers such that they add up to target",

    "public_tests": [
      { "input": [[2, 7, 11, 15], 9], "output": [0, 1] }
    ],

    "hidden_tests": [
      { "input": [[3, 2, 4], 6], "output": [1, 2] },
      { "input": [[1, 5, 3], 8], "output": [1, 2] }
    ]
  },

  {
    "id": 2,
    "difficulty": "medium",
    "description": "Check if the given parentheses string is valid. Return true or false.",

    "public_tests": [
      { "input": ["()[]{}"], "output": true }
    ],

    "hidden_tests": [
      { "input": ["(]"], "output": false },
      { "input": ["({[]})"], "output": true }
    ]
  },

  {
    "id": 3,
    "difficulty": "hard",
    "description": "Given an array of integers, return the length of the longest consecutive sequence.",

    "public_tests": [
      { "input": [[100, 4, 200, 1, 3, 2]], "output": 4 }
    ],

    "hidden_tests": [
      { "input": [[0,3,7,2,5,8,4,6,0,1]], "output": 9 },
      { "input": [[1,2,0,1]], "output": 3 }
    ]
  }
]