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摘要: void get_prime(ll x) { ///筛出质因子 ll t=x; if(x%2==0) { v.push_back(2); while(x%2==0) x/=2; } for(ll i=3;i*i<=t;i+=2) { if(x%i==0) v.push_back(i); while( 阅读全文
posted @ 2019-10-01 22:27 qinuna 阅读(115) 评论(0) 推荐(0) 编辑