17 lines
240 B
Markdown
17 lines
240 B
Markdown
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Given an integer `num`, return _a string of its **base 7** representation_.
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**Example 1:**
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Input: num = 100
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Output: "202"
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**Example 2:**
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Input: num = -7
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Output: "-10"
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**Constraints:**
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* `-107 <= num <= 107`
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