rite a complete C++ program to produce a class report for an exam of 30 multiple-choice questions. The input file is "answers.txt". The first 30 characters of the first line of answers.txt" is the solution key of the exam. Immediately after these 3 characters is an integer number indicating the number of students whe wrote the exam (call this number n). The next n lines of "answers.bxt" contain student answers in the first 30 characters follow ! a student's name in the next 10 all studoni

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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C++ Language 2
am 2:
Write a complete C++ program to produce a class report for an exam of
30 multiple-choice questions.
The input file is "answers.txt". The first 30 characters of the first line of
"answers.txt" is the solution key of the exam. Immediately after these 30
characters is an integer number indicating the number of students who
wrote the exam (call this number n). The next n lines of "answers.bxt"
contain student answers in the first 30 characters followed immediately by
a student's name in the next 10 character positions. The solution key and
all student answers only involve A, B, C, D, and E.
The output file "report.txt" contains one line per student. Each line has a
student's name, followed by the number of correct answers, followed by
PASS if the number correct is 50 percent or better, or FAIIL otherwise. For
example, sample "answers.txt" and "report.bxt" are as follows:
answers.txt:
ACEBCEDEBADDEADBEDCADBEADCABED87
ACBDCADEBDDDEADBEAADDBEBDCBBEDCHIP WEEMS
CCCCCCCCCNELL DALE
ССССССССССССССС
...
report.txt:
Assumptions to be made: (i) for header documentation, only the mair
algorithm is required (ii) you don't need to error check the data inside
CHIP WEEMS 21 PASS
NELL DALE 4 FAIL
input file.
Transcribed Image Text:am 2: Write a complete C++ program to produce a class report for an exam of 30 multiple-choice questions. The input file is "answers.txt". The first 30 characters of the first line of "answers.txt" is the solution key of the exam. Immediately after these 30 characters is an integer number indicating the number of students who wrote the exam (call this number n). The next n lines of "answers.bxt" contain student answers in the first 30 characters followed immediately by a student's name in the next 10 character positions. The solution key and all student answers only involve A, B, C, D, and E. The output file "report.txt" contains one line per student. Each line has a student's name, followed by the number of correct answers, followed by PASS if the number correct is 50 percent or better, or FAIIL otherwise. For example, sample "answers.txt" and "report.bxt" are as follows: answers.txt: ACEBCEDEBADDEADBEDCADBEADCABED87 ACBDCADEBDDDEADBEAADDBEBDCBBEDCHIP WEEMS CCCCCCCCCNELL DALE ССССССССССССССС ... report.txt: Assumptions to be made: (i) for header documentation, only the mair algorithm is required (ii) you don't need to error check the data inside CHIP WEEMS 21 PASS NELL DALE 4 FAIL input file.
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