Medium Accuracy: 47.78%
Submissions: 48505 Points: 4
Given a value V and array coins[] of size M, the task is to make the change for V cents, given that you have an infinite supply of each of coins{coins1, coins2, ..., coinsm} valued coins. Find the minimum number of coins to make the change. If not possible to make change then return -1.
Example 1:
Input: V = 30, M = 3, coins[] = {25, 10, 5}
Output: 2Explanation: Use one 25 cent coin
and one 5 cent coin
Example 2:
Input: V = 11, M = 4,coins[] = {9, 6, 5, 1}
Output: 2Explanation: Use one 6 cent coin
and one 5 cent coin
Your Task:
You don't need to read input or print anything. Complete the function minCoins() which takes V, M and array coins as input parameters and returns the answer.
Expected Time Complexity: O(V*M) Expected Auxiliary Space: O(V)
Constraints:
1 ≤ V*M ≤ 106
All array elements are distinct
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
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