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Random Number Generation
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Random Number Generation

EasyPython

Problem

For a ValueLabs coding assessment, implement a deterministic pseudorandom number generator without using the built-in random module. Use a linear congruential generator to produce a sequence of integers within an inclusive range.

The generator must update its state using:

state = (1664525 * state + 1013904223) % 2^32

Map each updated state into the requested range using the remainder operator.

Formal Specification

Implement generate_random_numbers(seed, count, lower, upper), where:

  1. seed is the initial non-negative integer state.
  2. count is the number of values to generate.
  3. lower and upper define an inclusive output range.
  4. Return a list containing exactly count integers.
  5. Each returned value must satisfy lower <= value <= upper.
  6. The same inputs must always produce the same output.

For each value, first update the state, then calculate lower + state % (upper - lower + 1).

Constraints

  • 0 <= seed < 2^32
  • 0 <= count <= 10^4
  • -10^9 <= lower <= upper <= 10^9
  • Use integer arithmetic only
  • Do not use the built-in random module

Function Signature

def generate_random_numbers(seed, count, lower, upper):
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