56238

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
56238	zhangweiran	组合	C++	Accepted	0 MS	248 KB	123	2024-11-09 22:28:05

#include<bits/stdc++.h> using namespace std; int main() { int a,n; cin>>a>>n; cout<<a*n-a-n<<endl; return 0; }