HDU_【2017 Multi-University Training Contest 1】——1001 Add More Zero
2017-07-25 20:15
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题目链接
题目意思
题目意思就是给你一个数n让你计算2^n的值,转化为科学计数法是10的几次方,输出这个次方数就行。解题思路
这就是一个数学公式就可以解决了。求log10(2^m-1)向下取整。代码部分
#include <iostream> #include <stdio.h> #include <math.h> using namespace std; int main() { int m,k,t=0; while(~scanf("%d",&m)) { k = (int)m*log10(2.0); printf("Case #%d: %d\n",++t,k); } return 0; }
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