2020牛客多校第四場補題

B.Basic Gcd Problem 解析: 分解出n的質因數個數爲cnt 答案:ccnt %MODjavascript #pragma GCC optimize(3,"Ofast","inline") #include<bits/stdc++.h> using namespace std; typedef long long ll; const int MOD=1e9+7; int t; in

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