

Posted by EHXM. Posted in " 경험/알고리즘 "2009/10/27 12:09
The 30th Annual ACM International Collegiate
Programming Contest ASIA Regional - Seoul
Problem A
Score
There is an objective test result such as “OOXXOXXOOO”. An ‘O’ means a correct answer of a problem and
an ‘X’ means a wrong answer. The score of each problem of this test is calculated by itself and its just
previous consecutive ‘O’s only when the answer is correct. For example, the score of the 10th problem is 3
that is obtained by itself and its two previous consecutive ‘O’s.
Therefore, the score of “OOXXOXXOOO” is 10 which is calculated by “1+2+0+0+1+0+0+1+2+3”.
You are to write a program calculating the scores of test results.
Input
Your program is to read from standard input. The input consists of T test cases. The number of test cases T is
given in the first line of the input. Each test case starts with a line containing a string composed by ‘O’ and
‘X’ and the length of the string is more than 0 and less than 80. There is no spaces between ‘O’ and ‘X’.
Output
Your program is to write to standard output. Print exactly one line for each test case. The line is to contain the
score of the test case.
The following shows sample input and output for five test cases.
Sample Input
5
OOXXOXXOOO
OOXXOOXXOO
OXOXOXOXOXOXOX
OOOOOOOOOO
OOOOXOOOOXOOOOX
Output for the Sample Input
10
9
7
55
30
여러분의 커뮤니케이션을 기다리고 있습니다.

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Posted by 우욱2010/02/15 18:08
넘 쉬운데요.. 진짜 ACM 문제 맞나요? -_-;;
<html>
<head>
<title>sol 30'th ACM prob. A</title>
<script type="text/javascript">
function calc_score()
{
var given_str = document.getElementById( 'inStr' ).value;
var sum = 0;
var sub_sum = 0;
for( var ii = 0; ii < given_str.length; ii++ )
{
var cur_char = given_str.substr( ii, 1 );
if( 'O' == cur_char )
{
sub_sum++;
sum += sub_sum;
}
else
{
sub_sum = 0;
}
}
document.getElementById( 'rst' ).value = sum;
}
</script>
<head>
<body>
<input type="text" id="inStr" />
<input type="button" onclick="javascript:calc_score();" value="calc" /><br />
<input type="text" id="rst" readonly="true" />
</body>
</html>
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네.. 첫문제는 보통 몸풀기죠 ㅎ
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