摘要:
A. Make a triangle! 暴力... 就是给你三个数,你每次可以选一个加1,问最少加多少次能构成三角形 B. Equations of Mathematical Magic 求满足式子$a-(a\ xor\ x)-x=0$的$x$值的数量 $a<=2^{30}-1$ 对于某一位的$a$ 阅读全文
摘要:
Description Recently, the cows have been competing with strings of balanced parentheses and comparing them with each other to see who has the best one 阅读全文