#23 #22
d={}
while True:
n=input('Enter student name: ')
m=int(input('Enter marks: '))
d[n]=m
e=input('Enter another(y/n): ')
if e=='n':
break
print('The students whose name contains a: ')
for i in d:
if 'a' in i:
print(i,':',d[i])
s=input('Enter a sentence')
l=s.lower()
sl=l.split()
d={}
for i in sl:
if i not in d:
d[i]=sl.count(i)
print(d)
#21
d={}
while True:
i=input('Enter an item: ')
p=int(input('Enter its price: '))
d[i]=p
e=input('Enter another(y/n): ')
if e=='n':
break
A=input('Enter an item to search its price: ')
for i in d:
if i==A:
print(i,':',d[i])
T=()
i=5
while i>0:
t=eval(input('Enter a tuple of 3 integers: '))
T+=(t,)
i-=1
k=1
for i in T:
s=sum(i)
a=s/3
print('The total mark of stundent',k,' is',s,'and the average is',a)
k+=1
#19
L=eval(input('Enter a list of integers: '))
L1=[]
L2=[]
for i in L:
if i%2==0:
L1+=[i]
else:
L2+=[i]
print('Even list: ',L1)
print('Odd list: ',L2)
#18
L=eval(input('Enter a list of integers: '))
for i in range(len(L)):
if L[i]%2==0:
L[i]*=5
else:
L[i]+=10
print('The new list is :',L)
#longest word program
x=eval(input("enter a list of words"))
y=0
for i in x:
if len(i)>y:
y=len(i)
z=i
else:
pass
print("the longest word is:",z)
#count the number of vowels
x=input("enter a word:")
c=0
for i in x :
if i in 'aeiou'or i in 'AEIOU':
c+=1
print("number of vowels is",c)
#check palindrome or not
x=input("enter a word:")
y=x[::1]
if x==y:
print('word is palindrome')
else:
print("word is palindrome")
#amstrong number
for i in range(1,501):
x=i%10
y=i//10
z=y%10
d=y//10
a=d%10
b=d//10
s=x**3+z**3+a**3
if s==i:
print(i)
#reverse the number
x=int(input("enter a number :"))
r=0
while x>0:
dig=x%10
r=r*10+dig
x=x//10
print('revesre of a numberis',r)
#multiplication table
x=int(input('enter a number:'))
for i in range (1,11):
print(i,'x',x,'=',x*i)
#factor program
x=int(input("enter a number:"))
print('Factors are:',end='',)
for i in range (1,x+1):
if x%i==0:
print(i,end=',')
#checking for prime number
x=int(input("enter a number:"))
for i in range (2,x):
if x%2==0:
print('number is a composite')
break
else:
print('number is prime')
#sum ofrange of values
s=0
for i in range(100,1001):
if i%3==0 or i%5==0:
s+=i
print(s)
#finding the result based on percentage
x=int(input("enter the percentage:"))
if x>75:
print('your result is first class')
elif 60<x<75:
print('your result is second class')
elif 40<x<60:
print('your result is pass class')
else:
print('you are failed')
x=int(input("enter the number one:"))
y=int(input("engter the number two:"))
z=int(input("enter the number three:"))
if x>y and x>z:
print('x is the greatest number',x)
elif y>x and y>z:
print('y is the greatest number',y)
else:
print("z is the greatest number",z)
#claculathig the discounted price
x=int(input("enter the sale:"))
if x<1000:
print('no discont')
print('the total price is ',x,)
if 1000<=x<=5000:
print('5% discount')
y=5*x/100
print('the discounted price is',y)
z=x-y
print(' the total prize is',z)
if x>=5000:
print('10% discount')
y=10*x/100
print("the discounted prize is",y)
z=x-y
print('the total prize is',z)
#finding the factors of a number
x=int(input('enter a number:'))
print('factors are :',end='')
for i in range (1,x+1):
if x%i==0:
print(i,end=',')
#phone number program
n=input('enter a phone number:')
valid=True
if len(n)!=10:
vlaid=False
elif not(n[0:3].isdigit()):
vlaid=False
elif n[3]!='_':
vlaid=False
elif (n[3:].isdigit()):
valid=False
if valid==True:
print(n,'is valid')
else:
print(n,'is not valid')
#highest price
d={}
while True:
i=input('enter product name:')
p=float(input('enter product name'))
d[i]=p
e=input('enter another (y/n):')
if e=='n':
break
v=list(d.values())
M=max(v)
print('highest price:',M)
print('the product that costd',M)
for i in d:
if d[i]==M:
print(i)
