Hello World!

题意:

输入一个值, 求最小复制次数.

思路:

#include<cstdio>int main() {int n, i, kase=0;while(scanf("%d", &n) && n > 0) {for(i=16; (n & (1<<i))==0; i--);int a = 0;if(n > (1<<i)) a = 1;printf("Case %d: %d\n", ++kase, i+a);}return 0;}

要得到2^n个句子需要复制n次.