1) The realization of the merger of the two files of data to generate a new file 3.txt 2) extracted from three subjects for students in make-up and save a new file 4.txt 3) of the merged file 3.txt in data in descending order by total score (at least in two sequencing methods to achieve) 4) Enter the name of a student, the student can find this information and the output (at least by two to find ways to achieve) 5) require the use of structure, chain or an array such as the above-mentioned requirements. 6), using a variety of methods and algorithms are correct, may be appropriate bonus.

2.cpp

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