摘要:
数列 #include<iostream> #include<cstdio> using namespace std; long long a,b,ans; void f(long long x,long long y){ if(y==0)return; ans+=x/y; f(y,x%y); } 阅读全文
摘要:
集合 #include<iostream> #include<cstdio> #include<algorithm> using namespace std; int n,a[1000010],cnt; int main(){ freopen("multiset.in","r",stdin);fre 阅读全文