ACM-ICPC 2018 瀋陽賽區網絡預賽 G Spare Tire (素因子分解+容斥）

.html 樣例輸入複製c++ 4 4 樣例輸出複製spa 14 #include<bits/stdc++.h> using namespace std; typedef long long ll; const ll MOD=1e9+7,inv2=500000004,inv6=166666668; ll n,m; const int maxn=100000; ll A(ll x) { x %=

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