countdown

Numbers round of Countdown (game show) in OPL with Constraint Programming

Dependencies

• IBM Ilog Optimization Studio

How to use it

• Choose a game mode (mod file)
• Uncomment or add one instance of game in countdown.dat

Command

oplrun countdown.mod countdown.dat

Code example

The following example use the classic game rules.

Input

n = 6;                          // number of tiles
target = 654;                   // number to find
values = [4, 5, 6, 7, 9, 10];   // tiles available

Output

OBJECTIVE: 0; 5
target: 654
values:  [4 5 6 7 9 10]
res:  [0 6 13 130 650 654 654]
operator:  [1 1 3 3 1 5]
index:  [3 4 6 2 1 5]
0 + 6 = 6
6 + 7 = 13
13 * 10 = 130
130 * 5 = 650
650 + 4 = 654

Game Modes

• classic game (countdown.mod)
• exponential operator (countdown_power.mod)
• use all operators (countdown_allops.mod)
• negative numbers (countdown_neg.mod)
• choose number of operations (countdown_ops.mod)