Purpose: Brute Force, vectors, next permutation
SEND + MORE = MONEY
Description:
In this program you will write a program to solve puzzles like the one above. In the above puzzle
you are to change the letters into digits chosen from {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }, such that
all the same letters represent the same number which makes the above equation correct. Your
program should be able to handle any three word puzzle with the operations addition, subtraction,
division, multiplication and exponentiation.
Input:
The input will come entirely from the keyboard (stdin) and will consist of typing a puzzle. A
puzzle will be on a single line containing a three strings (in capital letters). The first two
strings will be separated by an operator (+, - , *) and the last two strings will be separated
by a = sign. There will be a space between each string and symbol.
Output:
There should be one line of output. The output will be the equation repeated with digits
replacing the letters. Leading zeros should not need to be printed. If more than one solution
is possible then list the one, where the first word has the lowest value. If not solution is
possible write no solution
Sample Input
TO + GET = HER
CAT * CAN = NATION
Corresponding Sample Output
91 + 249 = 340
no solution
