HDU 2700 Parity(找规律)
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http://acm.hdu.edu.cn/showproblem.php?pid=2700
Parity
Time Limit: 2000/1000 MS(Java/Others)
Total Submission(s):1137
Problem Description
A bit string has odd parity if the number of 1's is odd. A bitstring has even parity if the number of 1's is even.Zero isconsidered to be an even number, so a bit string with no 1's haseven parity. Note that the number of
0's does not affect the parity of a bit string.
0's does not affect the parity of a bit string.
Input
The input consists of one or more strings, each on a line byitself, followed by a line containing only "#" that signals the endof the input. Each string contains 1–31 bits followed by either alowercase letter 'e' or a lowercase letter 'o'.
Output
Each line of output must look just like the corresponding lineof input, except that the letter at the end is replaced by thecorrect bit so that the entire bit string has even parity (if theletter was 'e') or odd parity (if the letter was 'o').
Sample Input
101e010010o 1e 000e 110100101o #
Sample Output
10100100101 11 0000 1101001010
Source
2008 Mid-Central USA
Recommend
zty
寻找规律
#include<stdio.h>
#include<string.h>
int main()
{
}
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