377. 组合总和 Ⅳ

为保证权益，题目请参考 377. 组合总和 Ⅳ(From LeetCode).

解决方案1

CPP

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>

using namespace std;

class Solution
{
public:
    int combinationSum4(vector<int> &nums, int target)
    {
        vector<int> dp(target + 1, 0);
        dp[0] = 1;
        for (int i = 1; i <= target; i++)
        {
            for (int j = 0; j < nums.size(); j++)
            {
                if (nums[j] <= i)
                {
                    dp[i] += dp[i - nums[j]];
                }
            }
        }
        return dp[target];
    }
};

int main()
{
    return 0;
}