Re-moved

Problem Description The WHU ACM Team has a big cup, with which every member drinks water. Now, we know the volume of the water in the cup, can you tell us it height? The radius of the cup’s top and bo

二分查根来一波~虽然次数有点高~但好在还是正的

接下来两周不写新题~认真复习补题解

WAWAWA~

补题

题意：x+y=a lcm(x,y)=b  求x,y12WCases +  b 10^9 + a 10^4所以肯定不是枚举……肯定是公式题接下来就是转化x+y=ax*y/gcd(x,y)=b令gcd(x,y)=cx=i*c,y=j*ci*c+j*c=ac*i*j=bc*(i+j)=ac*i*j=b因为i j互

坑坑坑坑

MST和二分之间不得不说的事~

不一样的做法啦~看不懂题解的弱鸡