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B. Mike and strings time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Mike has n strings s1, s2, ..., sn each

B. Economy Game time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Kolya is developing an economy simulator gam

A. System of Equations time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Furik loves math lessons very much,

C. Nearest vectorstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given the set of vectors on the plane, each of them starting at the orig...

题意： 把一个数n拆分，奇数拆成n/2,1,n/2，偶数拆成n/2,0,n/2，1和0不可拆，问拆分后从l位置到r位置1的个数 思路： 分治递归拆分即可...想的太多... n最大是2^50，最多递归调用也才是高为50的二叉树 #include <iostream> #include <cstdio> #include <cmath> #includ...