{ "data": { "question": { "questionId": "70", "questionFrontendId": "70", "boundTopicId": null, "title": "Climbing Stairs", "titleSlug": "climbing-stairs", "content": "

You are climbing a staircase. It takes n steps to reach the top.

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Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?

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Example 1:

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\nInput: n = 2\nOutput: 2\nExplanation: There are two ways to climb to the top.\n1. 1 step + 1 step\n2. 2 steps\n
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Example 2:

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\nInput: n = 3\nOutput: 3\nExplanation: There are three ways to climb to the top.\n1. 1 step + 1 step + 1 step\n2. 1 step + 2 steps\n3. 2 steps + 1 step\n
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Constraints:

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