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QA Coin combination (uk)

Write tests for getCoinCombination function that takes a non-negative integer cents (a specific amount in cents) and returns a combination of the smallest possible number of coins, giving the same amount.

The function should return an array where:

  • coins[0] = number of pennies (1 penny = 1 cent);
  • coins[1] = number of nickels (1 nickel = 5 cents);
  • coins[2] = number of dimes (1 dime = 10 cents);
  • coins[3] = number of quarters (1 quarter = 25 cents).

Examples:

getCoinCombination(1) === [1, 0, 0, 0] // 1 penny
getCoinCombination(6) === [1, 1, 0, 0] // 1 penny + 1 nickel
getCoinCombination(17) === [2, 1, 1, 0] // 2 pennies + 1 nickel + 1 dime
getCoinCombination(50) === [0, 0, 0, 2] // 2 quarters

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