1518 Square Coins
Time Limit : 2000/1000 MS(Java/Others) | Memory Limit : 131072/65536 KB(Java/Others)
Submits : 1 | Solved : 1
Description
People in Silverland use square coins. Not only they have square shapes but also their values are square
numbers. Coins with values of all square numbers up to 289 (= 17^2), i.e., 1-credit coins, 4-credit coins,
9-credit coins, . . . , and 289-credit coins, are available in Silverland.
There are four combinations of coins to pay ten credits:
. ten 1-credit coins
. one 4-credit coin and six 1-credit coins
. two 4-credit coins and two 1-credit coins
. and one 9-credit coin and one 1-credit coin.
Your mission is to count the number of ways to pay a given amount using coins of Silverland.
Input
The input consists of lines each containing an integer meaning an amount to be paid, followed by a line
containing a zero. You may assume that all the amounts are positive and less than 300.
Output
For each of the given amount, one line containing a single integer representing the number of combinations
of coins should be output. No other characters should appear in the output.
Sample Input
2
10
30
0
Sample Output
1
4
27
HINT
Source
ACM International Collegiate Programming Contest, Asia Regional 1999,
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