Programming-Data-Structures-And-Algorithms-Using-Python/Week-5 (Programming Assignment) at 0d4f94d8becd4d8e6ba1fb0259ca4387db70df39 · NPTEL-Course/Programming-Data-Structures-And-Algorithms-Using-Python · GitHub

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def Gvalue(code):
        if code=="A":
                return(10)
        if code=="AB":
                return(9)
        if code=="B":
                return(8)
        if code=="BC":
                return(7)
        if code=="C":
                return(6)
        if code=="CD":
                return(5)
        if code=="D":
                return(4)


ROLL_GRADEsum={}
Roll_course_count={}
Roll_name={}


type_course=input()
enter_course_detail=input()
next_input=input()
while(next_input!="Students"):
        next_input=input()


roll,name=input().split('~')
Roll_name[roll]=name
ROLL_GRADEsum[roll]=0
Roll_course_count[roll]=0
next_input=input()
while('~' in next_input):
    roll,name=next_input.split('~')
    Roll_name[roll]=name
    ROLL_GRADEsum[roll]=0
    Roll_course_count[roll]=0
    next_input=input()


code,sem,year,Rnum,grade=input().split('~')
if Rnum in ROLL_GRADEsum.keys():
    ROLL_GRADEsum[Rnum]=ROLL_GRADEsum[Rnum]+Gvalue(grade)
    Roll_course_count[Rnum]=Roll_course_count[Rnum]+1
next_input=input()
while(next_input!="EndOfInput"):
    code,sem,year,Rnum,grade=next_input.split('~')
    if Rnum in ROLL_GRADEsum.keys():
        ROLL_GRADEsum[Rnum]=ROLL_GRADEsum[Rnum]+Gvalue(grade)
        Roll_course_count[Rnum]=Roll_course_count[Rnum]+1
    next_input=input()


Sort_roll=sorted(Roll_name)
for key in Sort_roll:
    if ROLL_GRADEsum[key]!=0:
        ans=round((ROLL_GRADEsum[key]/Roll_course_count[key]),2)
        print(key+"~"+Roll_name[key]+"~"+str(ans))
    else:
        print(key+"~"+Roll_name[key]+"~"+"0")