# Questions tagged [constraint-satisfaction-problems]

For questions about constraint satisfaction problems.

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### How can I formulate the k-knights problem as a constraint satisfaction problem?

There are three things in every constraint satisfaction problem (CSP): Variables Domain Constraints In the given scenario, I know how to identify the constraints, but I don't know how to identify ...
105 views

### How can I assign agents to tasks based on time and affinity?

I am working on an assignment problem. Consider $K$ agents $A_1, \dots A_K$ and $N$ tasks $T_1, \dots T_N$. Each task has a certain time $t(T_i)$ to be completed and each agent has a matching (or ...
12 views

### Algorithm for pretty printing CSP graph visualization to be easy to understand?

I'm trying to come up with an algorithm to print complex CSP graphs in a easy to understand manner. I originally thought maybe to center constraints around their domain nodes but that probably won't ...
19 views

### How to calculate constraint check in nqueen of AIMA CSP?

I am testing aima csp of java code and I want to know how the constraint check of these problems described in AIMA book is got.
24 views

### Write Constraint Satisfaction Formulation for problem

Given $F_1,F_2,..,F_n$ as set of final exams of subjects taken by students $S_1,..,S_k$ in h slots such that no student takes two exams in a single slot.Here the objective is to maximize the number of ...
53 views

### Can AC-3 algorithm solve N-Queens problem?

I am building CSP NQueens solver and apply the AC-3 algorithm.But,the domain reduction doesn't occur and gets more search time.How does it happen?Is it a nature of AC-3 algorithm?
28 views

### What is local consistency in constraint satisfaction problems?

In the Constraint Propagation in CSP, it is often stated that pre-processing can solve the whole problem, so no search is required at all. And the key idea is local consistency. What does this ...
42 views

### Understanding Constraint Search

What is the goal of a constraint solver? How are constraints propagated in a constraint satisfaction search? Any references are also appreciated.
82 views

### What are daily life examples of SAT problems?

What are (good) daily life examples of SAT problems? I've thought about this one. The problem of placing a bunch of different kinds of glasses in a shared cabinet in such a way that some constraints ...
### How to solve constraint satisfaction problem of two queen and two knights on a $4 \times 4$ grid?
Consider the problem of placing 2 knights and 2 queens on a $4 \times 4$ chessboard, each piece (knight or queen) per row (denoted by R1, R2, R3, and R4), such that no two pieces are attacking each ...