UVa 1585 - 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 ofT 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

Sample Output 

10 9 7 55 30

翻译：给出一个由O和X组成的串（长度为1～80），统计得分。每个O的得分为目前连续出现的O的个数，X的得分为0。例如，OOXXOXXOOO的得分为1+2+0+0+1+0+0+1+2+3。

#include <stdio.h>#include <string.h>char s[90];int main(){int t,n,sum;scanf("%d",&t);while(t--){ scanf("%s",s);     n = strlen(s);     sum = 0;     int num; for(int i = 0; i < n; i++) {   if(s[i] == 'O')     {      if(i-1 >=0 && s[i-1] == 'O')    num++;  else    num = 1;  sum += num;      } } printf("%d\n",sum);    }    return 0;}