Integer Break LeetCode solution in C++

1
class Solution {
2
 public:
3
  int integerBreak(int n) {
4
    if (n == 2) return 1;
5
    if (n == 3) return 2;
6
    if (n == 4) return 4;
7
    int k = n / 3;
8
    int m = n % 3;
9
    int ans;
10
    if (m == 0)
11
      ans = pow(3, k);
12
    else if (m == 1)
13
      ans = pow(3, k - 1) * 4;
14
    else if (m == 2)
15
      ans = pow(3, k) * m;
16
    return ans;
17
  }
18
};