CODEMART

#output:  #Explanation:

  # Program to multiply two matrices using nested loops # 3x3 matrix X = [[ 12 , 7 , 3 ],     [ 4 , 5 , 6 ],     [ 7 , 8 , 9 ]] # 3x3 matrix Y = [[ 5 , 8 , 1 ],     [ 6 , 7 , 3 ],     [ 4 , 5 , 9 ]] # result is 3x3 result = [[ 0 , 0 , 0 ],          [ 0 , 0 , 0 ],          [ 0 , 0 , 0 ]] # iterate through rows of X for i in range(len(X)):     # iterate through columns of Y     for j in range(len(Y[ 0 ])):         # iterate through rows of Y         for k in range(len(Y)):            result[i][j] += X[i][k] * Y[k][j] for r in result:    print(r) #output: [114, 160, 60] [74, 97, 73] [119, 157, 112]

  # Program to add two matrices using nested loop X = [[ 1 , 2 , 3 ],     [ 4 , 5 , 6 ],     [ 7 , 8 , 9 ]] Y = [[ 9 , 8 , 7 ],     [ 6 , 5 , 4 ],     [ 3 , 2 , 1 ]] result = [[ 0 , 0 , 0 ],         [ 0 , 0 , 0 ],         [ 0 , 0 , 0 ]] # iterate through rows for i in range(len(X)): # iterate through columns     for j in range(len(X[ 0 ])):         result[i][j] = X[i][j] + Y[i][j] for r in result:     print(r) #output: [10, 10, 10] [10, 10, 10] [10, 10, 10]

  r = int(input( "Enter the number of rows:" )) c = int(input( "Enter the number of columns:" )) matrix = [] print( "Enter the entries rowwise: " ) for i in range(r):     a=[]     for j in range(c):         a.append(int(input( )))     matrix.append(a) for i in range(r):     for j in range(c):         print(matrix[i][j], end = " " )     print() #output: Enter the number of rows:2 Enter the number of columns:2 Enter the entries rowwise: 1 2 3 4 1 2 3 4

  31st.a word= "apple" print( "," .join(word)) #output: a,p,p,l,e 31st.b string= "ubed" user=input( "Enter the element to remove: " ) new_string= "" for i in string:     if i!=user:         new_string+=i print(new_string) #output: Enter the element to remove: d ube

  def remove_duplicates(l):     unlist=[]     for i in l:         if i not in unlist:             unlist.append(i)     print(unlist) l=[ 1 , 2 , 2 , 3 , 2 , 4 ] remove_duplicates(l) #output: [1, 2, 3, 4]

def has_duplicates(n, li):     for i in range(n):         for j in range(i + 1 , n):             if li[i] == li[j]:                 return True     return False no = int(input( "Enter how many numbers do you want in a list: " )) gl = [] for i in range(no):     x = int(input( "Enter an element: " ))     gl.append(x) rst = has_duplicates(no, gl) if rst:         print( "The given list has duplicates" ) else :     print( "The given list does not have duplicates" )   #output: Enter how many numbers do you want in a list: 4 Enter an element: 1 Enter an element: 2 Enter an element: 3 Enter an element: 2 The given list has duplicates

  entries=int(input( "Enter the no, of entries: " )) d={} for i in range(entries):     student_name=input( "Enter the student name: " )     student_marks=int(input( "Enter the percentage: " ))     d[student_name]=student_marks user=input( "Enter the student name: " ).lower() print(d[user]) #output: Enter the no. of entries: 2 Enter the student name: ubed Enter the percentage: 12 Enter the student name: rounak Enter the percentage: 13 Enter the student name: ubed 12

  entries=int(input( "Enter the no. of entries: " )) d={} for i in range(entries):     student_name=input( "Enter the student name: " )     student_marks=int(input( "Enter the percentage: " ))     d[student_name]=student_marks print(d) #output: Enter the no. of entries: 2 Enter the student name: ubed Enter the percentage: 2 Enter the student name: rounak Enter the percentage: 4 {'ubed': 2, 'rounak': 4}

  def inverted_dict(d):     d1={value:key for key,value in d.items()}     print(d1) number=int(input( "Enter the entries: " )) d={} for i in range(number):     key=input( "Enter the student name: " )     value=input( "Enter the marks: " )     d[key]=int(value) print(d) print( "inverted dictionary: " ) inverted_dict(d) #ouput: Enter the entries: 2 Enter the student name: ubed Enter the marks: 23 Enter the student name: rounak Enter the marks: 21 {'ubed': 23, 'rounak': 21} inverted dictionary: {23: 'ubed', 21: 'rounak'}

  num=int(input( "Enter the number: " )) d1={x:x** 2 for x in range ( 1 ,num+ 1 )} print(d1) #output: Enter the number: 5 {1: 1, 2: 4, 3: 9, 4: 16, 5: 25}

  d1={ 1 : 200 , 2 : 3000 , 3 : 100 , 5 : 20 } largest=d1[ 1 ] smallest=d1[ 1 ] for key in d1:     if smallest>d1[key]:         smallest=d1[key] print(smallest) for key in d1:     if largest<d1[key]:         largest=d1[key] print(largest) #output: 20 3000

  number=int(input( "Enter the number: " )) li=[] for i in range(number):     count= 0     for j in range( 1 ,number+ 1 ):         if i%j== 0 :             count+= 1     if count== 2 :         li.append(i) dic={} for i in range( 1 ,number+ 1 ):     if i<=len(li):         dic[i]=li[i- 1 ] print(dic) #output: Enter the number: 100 {1: 2, 2: 3, 3: 5, 4: 7, 5: 11, 6: 13, 7: 17, 8: 19, 9: 23, 10: 29, 11: 31, 12: 37, 13: 41, 14: 43, 15: 47, 16: 53, 17: 59, 18: 61, 19: 67, 20: 71, 21: 73, 22: 79, 23: 83, 24: 89, 25: 97}

  string= "i am ubed" s=string.split() print(s) dic={} for i in s:     dic[i]=len(i) print(dic) #output: ['i', 'am', 'ubed'] {'i': 1, 'am': 2, 'ubed': 4}

  l=[ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 ] user=int(input( "Enter the number to be removed: " )) k=[] for i in l:     if i!=user:         k.append(i) print(k) #output: Enter the number to be removed: 2 [1, 3, 4, 5, 6, 7, 8, 9, 0]

  l=[] for i in range( 3 ,- 4 ,- 1 ):     if i< 0 :         l.append(i) print(l) #output: [-1, -2, -3]

  l=[ 1 , 2 , 3 , 4 , 5 , 6 , 7 ] temp=l[ 0 ] l[ 0 ]=l[ 6 ] l[ 6 ]=temp print(l) #output: [7, 2, 3, 4, 5, 6, 1]

  l=[] for i in range( 1 , 10 ):     if i% 2 != 0 :         l.append(i) print(l) #output: [1, 3, 5, 7, 9]

  def duplicate(l):     unlist=[]     for i in l:         if i not in unlist:             unlist.append(i)     print(unlist) l=[ 1 , 2 , 2 , 3 , 2 , 4 ] duplicate(l) #output: [1, 2, 3, 4]

  l=[ 1 , 2 , 2 , 3 , 2 , 4 ] a=int(input( "Enter the number: " )) s=[] for i in range(len(l)):     if l[i]==a:         s.append(i) print(s) print(len(s)) #output: Enter the number: 2 [1, 2, 4] 3

  l=[ 1 , 4 , 3 , 2 , 6 , 7 , 9 ] k=sorted(l) print(k) print(k[ 1 ]) print(k[- 2 ]) #output: [1, 2, 3, 4, 6, 7, 9] 2 7

  sentence=[ 's' , 't' , 'r' , 'i' , 'n' , 'g' , 's' ] string=input( "Enter a character: " ) count= 0 for i in sentence:     if i==string:         count+= 1 print(count) #output: Enter a character: s 2

  sentence=[ 's' , 't' , 'r' , 'i' , 'n' , 'g' ] string= "" for i in sentence:     string+=i print(string) #output: string

  sentence= "sphn engg clg" s=sentence.split() l=[] for i in s:     l.append(i[::- 1 ]) print(l) #output: ['nhps', 'ggne', 'glc']

  string= "i a@m 32#+*ubed" str1= "" for i in range(len(string)):     if string[i].isalpha()== True :         str1+=string[i] print(str1) #output: iamubed

  v = [ 'a' , 'e' , 'i' , 'o' , 'u' ] count_vowels= 0 count_spaces= 0 string = "this is ubaidi" for i in string:     if i in v:         count_vowels+= 1     elif i== " " :         count_spaces+= 1 print(count_vowels) print(count_spaces) k=string.split() largest=k[ 0 ] for i in k:     if len(i)>len(largest):         largest=i print(largest) #output: 6 2 ubaidi

  str1= "'azcmamamegghakl" str2= "mam" count1= 0 for i in range (len(str1)):     if str1[i:i+len(str2)]==str2:         count1+= 1 print(count1) #output:2

  num = int(input( "Enter a number: " )) sum = 0 temp = num while temp > 0 :    digit = temp % 10    sum += digit ** 3    temp //= 10 if num == sum:    print(num, "is an Armstrong number" ) else :    print(num, "is not an Armstrong number" ) #output: Enter a number: 153 153 is an Armstrong number

  def hcf(a, b):     if (b == 0 ):         return a     else :         return hcf(b, a % b) a = 60 b = 48 # prints 12 print( "The gcd of 60 and 48 is : " , end= "" ) print(hcf( 60 , 48 )) #output: The gcd of 60 and 48 is 12

  print( "Integers not divisible by 2,3,5,7,11,13,17,19 that lie between 1 and 1000 are : " ) n = 1 while n <= 1000 :     if n% 2 != 0 and n% 3 != 0 and n% 5 != 0 and n% 7 != 0 and n% 11 != 0 and n% 13 != 0 and n% 17 != 0 and n% 19 != 0 :       print(n)    n = n+ 1 #output: Integers not divisible by 2,3,5,7,11,13,17,19 that lie between 1 and 1000 are : 1 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 401 409 419 421 431 433 439 443 449 457 461 463 467 479 487 491 499 503 509 521 523 529 541 547 557 563 569 571 577 587 593 599 601 607 613 617 619 631 641 643 647 653 659 661 667 673 677 683 691 701 709 713 719 727 733 739 743 751 757 761 769 773 787 797 809 811 821 823 827 829 839 841 851 853 857 859 863 877 881 883 887 899 907 911 919 929 937 94

sum= 0 x= 1 while (x!= 0 ):     x=int(input( "Enter a number: " ))     sum=sum + x print( "Sum of the entered numbers : " ,sum) #output: Enter a number: 2 Enter a number: 2 Enter a number: 3 Enter a number: 0 Sum of the entered numbers : 7

basic_salary = int(input( "Enter your basic salary: " )) if basic_salary > 25000 :    hra = .35 * basic_salary     da = .95 * basic_salary elif basic_salary > 15000 :    hra = .30 * basic_salary    da = .90 * basic_salary else :    hra = .25 * basic_salary    da = .80 * basic_salary gross_salary = basic_salary + hra + da print( "The gross salary is: " ,gross_salary) #output: Enter your basic salary: 30000 The gross salary is: 69000.0 

  per=int(input( "Enter a student percentage: " )) if per>= 75 :     print( "congrats A+ grade" )  elif per>= 60 :     print( "congrats A grade" ) elif per>= 50 :     print( "you got B+ grade" ) elif per>= 40 :     print( "you got B grade" ) else :     print( "Better luck next time" ) #output: Enter a student percentage: 85 congrats A+ grade

a=int(input( "Enter a number: " ))  b=int(input( "Enter a number: " )) c=int(input( "Enter a number: " )) if a>b:     if a>c:         max=a     else :         max=c else :     if b>c:         max=b     else :         max=c print(max) #output: Enter a number: 3 Enter a number: 5 Enter a number: 4 5

  a=int(input( "Enter a number: " ))  b=int(input( "Enter a number: " )) ans1=a+b print( "Addition of" ,a, "and" ,b, "is" ,ans1) ans2=a-b print( "Substraction of" ,a, "and" ,b, "is" ,ans2) ans3=a*b print( "Multiplication of" ,a, "and" ,b, "is" ,ans3) ans4=a/b print( "Division of" ,a, "and" ,b, "is" ,ans4) ans5=a%b print( "Modulus of" ,a, "and" ,b, "is" ,ans5) ans6=a//b print( "Floor division of" ,a, "and" ,b, "is" ,ans6) ans7=a**b print( "Exponential of" ,a, "and" ,b, "is" ,ans7) #output: Enter a number: 10 Enter a number: 5 Addition of 10 and 5 is 15 Substraction of 10 and 5 is 5 Multiplication of 10 and 5 is 50 Division of 10 and 5 is 2.0 Modulus of 10 and 5 is 0 Floor division of 10 and 5 is 2 Exponential of 10 and 5 is 100000