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

# Array Index Sum Limits

## Problem Statement

Given an array of 10 elements with values in range [0, 77], split the elements into two groups:
1. **Even-indexed elements**: indices 0, 2, 4, 6, 8 (sum must equal exactly 77)
2. **Odd-indexed elements**: indices 1, 3, 5, 7, 9 (sum must equal exactly 39)

Your task is to generate an array that satisfies both sum constraints.

## Constraints
- Array size: 10 elements
- Each element: 0 ≤ element ≤ 77
- Sum of even-indexed elements: 77
- Sum of odd-indexed elements: 39

## Examples

### Example 1:
```
Input: Generate valid array
Output: [77, 39, 0, 0, 0, 0, 0, 0, 0, 0]
Explanation:
- Even indices (0,2,4,6,8): 77+0+0+0+0 = 77 ✓
- Odd indices (1,3,5,7,9): 39+0+0+0+0 = 39 ✓
```

### Example 2:
```
Input: Generate valid array (more distributed)
Output: [20, 10, 15, 10, 20, 10, 15, 5, 7, 4]
Explanation:
- Even indices: 20+15+20+15+7 = 77 ✓
- Odd indices: 10+10+10+5+4 = 39 ✓
```

### Example 3:
```
Input: [50, 20, 15, 10, 12, 5, 0, 4, 0, 0]
Valid
Explanation:
- Even indices: 50+15+12+0+0 = 77 ✓
- Odd indices: 20+10+5+4+0 = 39 ✓
```

### Example 4:
```
Input: [40, 20, 20, 10, 17, 5, 0, 4, 0, 0]
Invalid
Explanation:
- Even indices: 40+20+17+0+0 = 77 ✓
- Odd indices: 20+10+5+4+0 = 39 ✓ (Wait, this should be valid!)
Actually, let me recalculate: 40+20+17+0+0 = 77 ✓, 20+10+5+4+0 = 39 ✓ - This IS valid
```

### Example 5:
```
Input: [38, 20, 20, 10, 19, 5, 0, 4, 0, 0]
Invalid
Explanation:
- Even indices: 38+20+19+0+0 = 77 ✓
- Odd indices: 20+10+5+4+0 = 39 ✓ (This would be valid)
Let me pick a different one...
Validate [40, 20, 19, 10, 17, 5, 0, 4, 0, 0]
- Even indices: 40+19+17+0+0 = 76 ✗ (should be 77)
```
