Faulty Odometer Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Problem Description You are given a car odometer which displays the miles traveled as an integer. The odometer has a defect, however: it proceeds from the digit 2 to the digit 4 and from the digit 7 to the digit 9, always skipping over the digit 3 and 8. This defect shows up in all positions (the one’s, the ten’s, the hundred’s, etc.). For example, if the odometer displays 15229 and the car travels one mile, odometer reading changes to 15240 (instead of 15230).
Input Each line of input contains a positive integer in the range 1..999999999 which represents an odometer reading. (Leading zeros will not appear in the input.) The end of input is indicated by a line containing a single 0. You may assume that no odometer reading will contain the digit 3 and 8.
Output Each line of input will produce exactly one line of output, which will contain: the odometer reading from the input, a colon, one blank space, and the actual number of miles traveled by the car.
Sample Input 15 2005 250 1500 999999 0 Sample Output 15: 12 2005: 1028 250: 160 1500: 768 999999: 262143
Source 2012 ACM/ICPC Asia Regional Tianjin Online
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#include<stdio.h>
#include<string.h>
int main()
{
int n,len,num,ba,i;
char s[10];
while(gets(s)!=NULL)
{
if(strcmp(s,"0")==0)
break;
len=strlen(s);
num=0;
//字符串转换成数字
for(i=0; i<len; i++)
{
num=num*10+s[i]-'0';
}
//转换成八进制
for(i=0; i<len; i++)
{
if(s[i]>'8')//if(s[i]>=9)
s[i]-=2;
else if(s[i]>'3')//if(s[i]>=4)
s[i]-=1;
}
ba=0;
for(i=0;i<len;i++)
{
ba=ba*8+s[i]-'0';
}
printf("%d: %d\n",num,ba);
}
}
此题是将八进制转换成十进制，也可以理解为统计从1~n除去含有‘3’‘8’数字外所有的数字的个数。
今天的文章A – Faulty Odometer分享到此就结束了，感谢您的阅读。
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