Description: Fast sorting algorithm programming text file copy function to achieve copy. Write a program that requires: Enter N-Number of students learning and achievement, and save the text file in the stu.txt, student achievement and to sort the results sorted output to score.txt file, while the output on the screen above the average score of the number of students learning and achievement. Write a program to identify strings str1 and str2 string of all longest common string.
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File list (Check if you may need any files):
实验1
.....\copy.c
.....\qsort.c
.....\str_cmp.c
.....\stu_sort.cpp