uploaded till chapter 10

Author: Harsh Bhatia

10_1.py

@@ -0,0 +1,8 @@
+def sumlist(lon):
+    new=[]
+    for i in range(0,len(lon)):
+        new.append(sum(lon[0:i+1]))
+    print(new)
+
+s=[1,2,7,5]
+sumlist(s)

10_2.py

@@ -0,0 +1,7 @@
+def chop(word):
+    word=word[1:]
+    word=word[:-1]
+    print(word)
+
+l=[1,2,3,4,5]
+chop(l)

10_3.py

@@ -0,0 +1,10 @@
+def is_sorted(ser):
+    ser1=ser[:]
+    ser.sort()
+    if ser==ser1:
+        return True
+    else:
+        return False
+
+s=['a','t','c']
+print(is_sorted(s))

10_4.py

@@ -0,0 +1,11 @@
+def is_anagrams(let1,let2):
+    if len(let1)==len(let2):
+        if sorted(let1)==sorted(let2):
+            return True
+        else:
+            return False
+    else:
+        return False
+l='abrss'
+l1='abssr'
+print(is_anagrams(l,l1))

10_5a.py

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+def has_duplicates(lost):
+    lost.sort()
+    for i in range(0,len(lost)-1):
+        if lost[i]==lost[i+1]:
+            return True
+
+s=['h','a','r','s','h']
+print(has_duplicates(s))

10_6.py

@@ -0,0 +1,14 @@
+def remove_duplicates(lost):
+    lost.sort()
+    k=0
+    for i in range(0,len(lost)-1):
+        print(i+1)
+        if lost[i]==lost[i+1]:
+            lost[i]='0'
+            k=k+1
+    for i in range(0,k):
+        lost.remove('0')
+    return lost
+
+s=['h','a','r','r','h','h','r']
+print(remove_duplicates(s))

10_7.py

@@ -0,0 +1,24 @@
+'''
+Task: take input from file and convert into list word by word
+by slash
+python 3.3
+'''
+k=[]
+q=open("line.txt")
+w=q.readlines()
+for i in range(0,len(w)):
+    f=w[i]
+    f=f.strip()
+    while True:
+        r=f.find(' ')
+        if r<0:
+            z=f
+        else:
+            z=f[0:r]
+        f=f[r+1:]
+        #print(r)
+        f.strip()
+        k.append(z)
+        if r<0:
+            break;
+print(k)

3_5.py

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+def straight():
+    print ('-------',end="")
+
+def mid():
+    print ('|')
+
+def space():
+    print('|       ',end="")
+
+def plus():
+    print("+",end="")
+
+def plusend():
+    print("+")
+
+def first():
+    plus()
+    straight()
+    plus()
+    straight()
+    plusend()
+
+def second():
+    space()
+    space()
+    mid()
+
+def draw(n,m):
+    for i in range(0,n):
+        first()
+        for j in range(0,m):
+            second()
+                  
+    first()
+    
+    
+draw(2,3)
+    
+
+

6_4.py

@@ -0,0 +1,17 @@
+def b(z):
+    prod = a(z,z)
+    print(z,prod)
+    return prod
+
+def a(x,y):
+    x=x+1
+    return x*y
+
+def c(x,y,z):
+    sum = x+y+z
+    pow = b(sum)**2
+    return pow
+
+x=1
+y=x+1
+print (c(x,y+3,x+y))

6_5.py

@@ -0,0 +1,13 @@
+def arc(m,n):
+    if m==0:
+        return n+1
+    else:
+        if m>0:
+            if n==0:
+                return arc(m-1,1)
+            else:
+                if n>0:
+                    return arc(m-1,arc(m,n-1))
+            
+r=arc(3,4)
+print(r)

6_7.py

@@ -0,0 +1,28 @@
+def is_divisible(a,b):
+    if a%b == 0:
+        return 'true'
+    else:
+        return 'false'
+
+def power(a,b):
+    c = a/b
+    d=c/b
+    if d==b or d==1:
+        return 'true'
+    else:
+        return 'false'
+
+def is_power(a,b):
+    r=is_divisible(a,b)
+    v=power(a,b)
+    if r=='true':
+        if v=='true':
+            print('a is power of b')
+        else:
+            print('a is divisible by b but not power of b')
+    else:
+        if r=='false':
+            print('a is nor divisible nor power of b')
+        
+
+is_power(7,4)

6_8.py

@@ -0,0 +1,9 @@
+def gcd(a,b):    
+    if b==0:
+        print("gcd is equal to",a)        
+    else:
+        r=a%b
+        return gcd(b,r)
+
+
+gcd(25,125)

7_4.py

@@ -0,0 +1,11 @@
+def eval_loop(s):
+    print(eval(s))
+
+while True:
+    line = input('type "done" to exit')
+    
+    if  line == 'done':
+        break
+    
+    else:
+        eval_loop(line)

8_12.py

@@ -0,0 +1,16 @@
+def rotate_word(s,n):
+    for i in range(0,len(s)):
+        n=int(n)
+        k=ord(s[i])
+        if k>64 and k<91:
+            k=ord(s[i])+ n
+            if k>90:
+                k=65+(k-90)                
+        else:
+            if k >96 and k<123:
+                k=ord(s[i])+ n
+                if k>122:
+                    k=97+(k-122)
+        print(chr(k),end="")
+
+rotate_word('Cheer','7')

8_9.py

@@ -0,0 +1,7 @@
+def is_palindrome(s):    
+    if s[::-1]==s:
+        print('yes')
+    else:
+        print('no')
+        
+is_palindrome('apapa')

9_1.py

@@ -0,0 +1,5 @@
+fin=open('words.txt')
+for line in fin:
+    word=line.strip()
+    if len(word)>5:
+        print(word)

9_2.py

@@ -0,0 +1,12 @@
+def has_no_e(n):
+    for letter in n:
+        if letter == 'e':
+            return False
+    return True
+            
+fin=open('words.txt')
+for line in fin:
+    word=line.strip()
+    r=has_no_e(word)
+    if r==True:
+        print(word)

9_3.py

@@ -0,0 +1,17 @@
+def has_no(n,e):
+    for i in e:
+        for letter in n:
+            if letter == i:
+                return False
+    return True
+            
+
+
+t=input('PLease enter forbidden no')
+
+fin=open('words.txt')
+for line in fin:
+    word=line.strip()
+    r=has_no(word,t)
+    if r==True:
+        print(word)

9_4.py

@@ -0,0 +1,7 @@
+def uses_all(word,test):
+    for t in test:        
+        if t not in word:
+            return False
+    return True
+
+print(uses_all('heeeeel','he'))

9_7.py

@@ -0,0 +1,51 @@
+def check(word):
+    r=len(word)
+    i=0
+    z=0
+    if r>5:
+        while r>1:
+            #print(r)
+            if word[i]==word[i+1]:
+                r=r-2
+                i=i+2
+                z=z+1
+                if z>1:
+                    return True
+                #print("equal")
+            else:
+                #print("not equal")
+                r=r-1
+                i=i+1
+                z=0
+        #print(z)
+        
+    else:
+        #print("cannot possible")
+        return False
+def equal(word,j):
+    if word[j]==word[j+1]:
+        return True
+
+
+count=0
+f=open("englishword.txt")
+'''
+k="bookkeeper"
+if check(k)==True:
+    print(k)
+
+'''
+q=0
+
+for line in f:
+    k=line.strip()
+    #k=f.readline()
+    if check(k)==True:
+        print(k)
+    else:
+        q=q+1
+
+print("total no of words checkedL:",end="")
+print(q)
+
+

9_8.py

@@ -0,0 +1,19 @@
+def odometer_palindrome(digit):
+    q=len(digit)
+    h=q/2
+    h=int(h)
+    q=q
+    i=0
+    r=1
+    rev=digit[::-1]
+    print(digit[i+r:h])
+    print(rev[i+r:h])
+    if digit[i:h]==rev[i+r:h+r]:
+        print(q-r,"letter palindrome")
+    else:
+        print("nothing")
+
+digit="612145"
+print(odometer_palindrome(digit))
+
+#front palindrome : digit[i:h]==rev[i+r:h+r]