puz4.txt and puz6.txt files:

This program will solve a Futoshiki puzzle, a grid-based logic puzzle from Japan, also known as Unequal. The learning objectives of the program are: Use C functions to solve a problem, including recursive functions . Read from a text file. Use dynamic memory allocation to create an array whose size is not known at compile time. Futoshiki Futoshiki involves an NxN square grid, in which the numbers 1 through N are placed. A number may not appear more than once in the same column, or more than once in the same row. In addition, there are greater-than/less-than relations specified between selected pairs of grid boxes, and these relations must be obeyed. The puzzle may start with some numbers already placed The figure below shows a 4x4 puzzle on the left, and its solution on the right. 4 3 3 2 This program will solve a Futoshiki puzzle, a grid-based logic puzzle from Japan, also known as Unequal. The learning objectives of the program are: Use C functions to solve a problem, including recursive functions . Read from a text file. Use dynamic memory allocation to create an array whose size is not known at compile time. Futoshiki Futoshiki involves an NxN square grid, in which the numbers 1 through N are placed. A number may not appear more than once in the same column, or more than once in the same row. In addition, there are greater-than/less-than relations specified between selected pairs of grid boxes, and these relations must be obeyed. The puzzle may start with some numbers already placed The figure below shows a 4x4 puzzle on the left, and its solution on the right. 4 3 3 2