Add More Zero HDU - 6033
2017-10-31 22:27
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There is a youngster known for amateur propositions concerning several mathematical hard problems. Nowadays, he is preparing a thought-provoking problem on a specific type of supercomputer which has ability to support calculations of integers between 00 and (2m−1)(2m−1) (inclusive). As a young man born with ten fingers, he loves the powers of 1010 somuch, which results in his eccentricity that he always ranges integers he would like to use from 11 to 10k10k (inclusive). For the sake of processing, all integers he would use possibly in this interesting problem ought to be as computable as this supercomputer could. Given the positive integer mm,your task is to determine maximum possible integer kk thatis suitable for the specific supercomputer.InputThe input contains multiple test cases. Each test case in one line contains only one positive integer mm,satisfying 1≤m≤1051≤m≤105.OutputFor each test case, output " Case #xx: yy"in one line (without quotes), where xx indicatesthe case number starting from 11 and yydenotesthe answer of corresponding case.Sample Input
1 64Sample Output
Case #1: 0 Case #2: 19
#include <cstdio>#include <cmath>int main(){int n, Case = 1;while (~scanf("%d",&n)) {double ans = n * log10(2);printf("Case #%d: %d\n",Case ++ , (int)ans);}}
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