基础算法题——求单链表结点的阶乘和（0的阶乘(0!) 是1、1的阶乘(1!) 是1）

傷城~ 2022-12-20 02:23 150阅读 0赞

#### [求单链表结点的阶乘和][Link 1] ####

![题目][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1poZW5neWFuZ3hpbm4_size_16_color_FFFFFF_t_70_pic_center]  
![题目][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1poZW5neWFuZ3hpbm4_size_16_color_FFFFFF_t_70_pic_center 1]  
![题目][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1poZW5neWFuZ3hpbm4_size_16_color_FFFFFF_t_70_pic_center 2]  
**0的阶乘(0!) 是1、1的阶乘(1!) 是1  
0的阶乘(0!) 是1、1的阶乘(1!) 是1  
0的阶乘(0!) 是1、1的阶乘(1!) 是1**

int FactorialSum( List L ){ 
        int dp[15], ans=0;
        dp[0]=1, dp[1]=1;
        for(int i=2; i<=12; i++){ 
            dp[i] = dp[i-1]*i;
        }
        
        while(L!=NULL){ 
            ans += dp[L->Data];
            L = L->Next;
        }
        
        return ans;
    }

[Link 1]: https://pintia.cn/problem-sets/14/problems/738
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