Python subjective question for competitive exam (17)

Q1.Program to find the max element from the list.

def max(a):
    big=a[0]
    for i in range(len(a)):
        if(a[i]>big):
            big=a[i] 
    return(big)


a=[4,6,7,90,10,45,67,87,7]
print(max(a))

Output
>>> 
==================== RESTART: C:/Users/Dell/Desktop/gg.py ====================
90

Q2.Program to find cube of a number using function.

def cube(x):
    return(x*x*x)
print(cube(5))

Output
>>> 
==================== RESTART: C:/Users/Dell/Desktop/hh.py ====================
125

Q3.Program to find mean of list element.

def mean(a):
    sum=0
    for i in range(len(a)):
        sum=sum+a[i]
    mean=sum/len(a)    
    return(mean)    
        


a=[1,2,3]
print(mean(a))

Output
>>> 
==================== RESTART: C:/Users/Dell/Desktop/gg.py ====================
2.0

Q4.Program to traverse a string.

s="my name is xyz"
for i in range(len(s)):
    print(s[i])

Output
==================== RESTART: C:/Users/Dell/Desktop/gg.py ====================
m
y
 
n
a
m
e
 
i
s
 
x
y
z

Q5.Program to add two matrix using list.

a=[[1,1],[1,1]]
b=[[1,1],[1,1]]
r=[[0,0],[0,0]]
for i in range(len(a)):
    for j in range(len(a[0])):
        r[i][j]=a[i][j]+b[i][j]
for c in r:
    print(c)

Output
>>> 
==================== RESTART: C:/Users/Dell/Desktop/gg.py ====================
[2, 2]
[2, 2]