--- title: "L1-084 拯救外星人" created: 2025-11-28 tags: - 算法 --- # L1-084 拯救外星人 ## 题目 [L1-084 拯救外星人](https://pintia.cn/problem-sets/994805046380707840/exam/problems/type/7?problemSetProblemId=1518581337161646080&page=0) ![[image-d1049de1.png]] ## 思路分析 ## 代码实现 ```cpp #include using namespace std; #define endl '\n' using ll = long long; using ull = unsigned long long; using PII = pair; using Pll = pair; int dx[4]={-1,0,1,0},dy[4]={0,1,0,-1}; const int inf = 0x3f3f3f3f; int main(){ ios::sync_with_stdio(0),cin.tie(0),cout.tie(0); int a,b;cin>>a>>b; int n=a+b; ll ans=1; for(int i=1;i<=n;i++){ ans*=i; } cout<