leetcode/lcci/08.11.Coin/Solution2.java

14 lines
356 B
Java

class Solution {
public int waysToChange(int n) {
final int mod = (int) 1e9 + 7;
int[] coins = {25, 10, 5, 1};
int[] f = new int[n + 1];
f[0] = 1;
for (int c : coins) {
for (int j = c; j <= n; ++j) {
f[j] = (f[j] + f[j - c]) % mod;
}
}
return f[n];
}
}