GPACALC - Calculate your GPA
Design a calculator to calculate your GPA. Possible grades are S, A, B, C, D and E. S corresponds to 10 credits, A to 9, B to 8, C to 7, D to 6 and E to 5. There are n subjects. Each subject has a number of credits and the grade obtained by the student.
GPA of the student is the summation of [[grades obtained multiplied by the number of credits for each subject]] divided by the total number of credits. For example, if input is n = 3 and three subjects have credits 3, 4 and 5. A student has obtained grade S, A and B respectively, then GPA = (3*10 + 4*9 + 5*8)/(3+4+5)
Input
First line consists of t, the number of test cases (1 <= t <= 20). Each test case starts with n, the number of subjects (1 <= n <= 16). The next n lines consist of credits for that subject followed by grade obtained by the student (1 <= credits <= 10 and grade will be one among S, A, B, C, D and E)
Output
For each test case, print the GPA of the student rounded off to two decimal places.
Example
Input: 1 12 4 D 1 E 1 S 3 D 1 E 2 A 4 A 4 A 3 C 1 C 1 B 2 D Output: 7.41
hide comments
yaswanth:
2013-12-22 09:13:04
tutorial |
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anurag garg:
2013-12-22 04:28:04
finally AC after 5 WA
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Shivam:
2013-12-22 00:06:06
how exactly are we expected to round off ? 3 WAs :( |
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Sameer:
2013-12-21 23:14:57
Please move to tutorial... |
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Prashant Kiran:
2013-12-21 20:41:30
Thanks :)...will look into it |
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Bhavik:
2013-12-21 20:35:00
@prashant:
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Prashant Kiran:
2013-12-21 20:33:58
Bhavik can you explain what is the fault in my rounding off?
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Bhavik:
2013-12-21 20:32:38
finally ac:))
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Prashant Kiran:
2013-12-21 20:30:05
what is the error in the code <snip>
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Bhavik:
2013-12-21 20:27:56
@Prashant: we have to print o/p after each test case |
Added by: | Pandian |
Date: | 2013-12-19 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All |
Resource: | Own |