SystemVerilog Testbench Introduction

SystemVerilog Testbench Architecture

APB Interface

APB Transaction

APB Generator

APB Driver

APB Driver Phase 2

APB Monitor

APB Scoreboard

APB Environment

APB Testbench Top

RISC-V Processor (YARP) Interface

YARP Transaction

YARP Generator

YARP Driver

YARP Data Memory Model

YARP Monitor

YARP Scoreboard

YARP Testbench Top

DVCon 26 Hackathon Problem

Array Sum Limit

Array Index Sum Limit

Ball Draw No Repeat

Conditional Even Probability

Even Odd Index Value

Five Consecutive Ones

Frequency Constraint

Grouped Ones

Index Value Range

Leap Year

Matrix Rotation

Non Adjacent Ones

Power of 4

Dynamic Ranges

Recent Four Unique

Row Max Unique

Subarray Max Sum

Three Duplicates Only

Tic Tac Toe

Unique 3D Array

Weighted Popcount

Unique Sum

Split Array into Queues

# Unique 3D Array

## Problem Statement

Given a 3×3×3 three-dimensional array, generate an array where all 27 values are unique integers in the range [1, 100].

This tests constraint generation for multi-dimensional arrays and the `unique` constraint in SystemVerilog.

## Constraints
- Array dimensions: 3×3×3 (27 elements total)
- Each element: 1 ≤ element ≤ 100
- All elements: Must be unique (no duplicates)

## Examples

### Example 1:
```
Generate a 3×3×3 array with all unique values in [1,100]
One valid solution:
Layer 0:  [[1,  2,  3],
           [4,  5,  6],
           [7,  8,  9]]
Layer 1:  [[10, 11, 12],
           [13, 14, 15],
           [16, 17, 18]]
Layer 2:  [[19, 20, 21],
           [22, 23, 24],
           [25, 26, 27]]
Explanation: All 27 values are unique and in range [1,100]
```

### Example 2:
```
Output:
Layer 0:  [[50, 45, 100],
           [23, 67, 12],
           [89, 34, 56]]
Layer 1:  [[72, 11, 98],
           [44, 29, 75],
           [3,  88, 61]]
Layer 2:  [[91, 15, 42],
           [77, 33, 59],
           [24, 70, 8]]
Explanation: Random unique values, still satisfies the constraint
```
