(It is known that there are several (number lt; 200) four-digit positive integers in the file IN.DAT. The function ReadDat() reads these positive integers and stores them in the array xx. Please compile the function CalValue(), its function request: 1. Find out how many positive integers totNum are in this file; 2. Find the number totCnt of the numbers whose sums are odd numbers, and satisfy this condition The arithmetic mean totPjz of these numbers, after all, adjusts)
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