Question 1: Scheduling Optimization Problem
A scheduler manages multiple processes with priorities represented by the letters a, b, and c. Its goal is to optimize the schedule to achieve a specific sequence.
Available Operations:
- Choose a process with priority
a,b, orc. - Insert the chosen process into the scheduling queue at any position.
Objective:
Determine the minimum number of scheduling operations required to ensure that the scheduling queue follows the repeating pattern "abc".
Example:
- Input:
s = "abb" - Transformation: Transform the queue to
abcabcby inserting two letterscand one lettera. - Explanation: The string
abcabcis the concatenation of"abc"two times. - Result: The minimum number of scheduling operations required is
3.
Function Description:
Complete the function findMinOperations in the editor below.
Parameters:
string s: the scheduling queue.
Returns:
int: the minimum number of operations required to make the queue a concatenation of"abc"several times.
Constraints:
- The length of
ssatisfies1 ≤ |s| ≤ 100,000. - The string
sconsists only of characters'a','b', and'c'.
Question 2: Cost Optimization in Edge Computing
In an edge computing environment, required hardware includes edge devices, input peripherals, and bundles that encompass both types. Each resource comes at a cost:
- Edge devices are priced at
edgeDeviceCost. - Input peripherals are priced at
inputPeripheralCost. - Bundles are priced at
bundleCost.
Objective:
Optimize the procurement of resources to minimize costs while ensuring that the environment is equipped with all the essential resources. The flexibility allows for a combination of individual items and bundles to meet the requirements of:
xedge devices.yinput peripherals.
Example:
- Input:
edgeDeviceCost = 1inputPeripheralCost = 2bundleCost = 2x = 2y = 1
- Strategy:
- Purchase 1 edge device and 1 bundle pack, totaling
1 + 2 = 3units.
- Purchase 1 edge device and 1 bundle pack, totaling
- Result: The minimum total expenditure is
3.
Function Description:
Complete the function getMinimumCost in the editor below.
Parameters:
int edgeDeviceCost: the cost of an edge device.int inputPeripheralCost: the cost of an input peripheral.int bundleCost: the cost of a bundle containing both an edge device and an input peripheral.int x: the number of edge devices required.int y: the number of input peripherals required.
Returns:
long: the minimum expenditure necessary to ensure that the edge computing environment is fully equipped.
Constraints:
- All costs and requirements satisfy
1 ≤ edgeDeviceCost, inputPeripheralCost, bundleCost, x, y ≤ 1,000,000,000.
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