42317

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
42317	YOYOLEE-李昕颖	组合	C++	Accepted	0 MS	240 KB	115	2024-02-25 11:24:05

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