HP HP-11C - Page 205

Section 10: Applications Programs 203
0.1111111
0.111111111
0.111111111 Ahit!
Example 2:
Keystrokes Display
0.6 €] 0
1.
Submarine will now move on sonar echoes as well as on depth
charge misses.
First move:
7 [ENTER]4 1. Echo.
The submarine is in one of the x squares in the left diagram below.
But the submarine moves, so now it could be in any of the x squares
in the right diagram below.
01234567819 (012
67,89
X X| X X X
X| X| X X X
X X X X X
XX
X[
XX
|w
XX
X|
X|X|+
XX
X|
XX
|
O=INWIPAP
OO
(N0
O
O
=NWPLR
OO
WO
O
=INWPLOGOODON
OO
0123456/ 789 01234567829
. t
Diagrams of 1°' move
Second move:
6 [ENTER]4 [B] 0. No echo.
You’ve eliminated some positions (left diagram:@), but new
possible positions have been created by the enemy’s random move
(right diagram).