#197Medium#53 in Intuit's list· asked at 24 companies
Coin Change
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What we know
Example 1
Input: coins = [1,2,5], amount = 11 Output: 3
11 = 5 + 5 + 1.
Example 2
Input: coins = [2], amount = 3 Output: -1
Example 3
Input: coins = [1], amount = 0 Output: 0
Constraints
- •
1 <= coins.length <= 12 - •
1 <= coins[i] <= 2^31 - 1 - •
0 <= amount <= 10^4