Friday, December 16, 2016

Lists

Consider a list (list = []). You can perform the following commands:
  1. insert i e: Insert integer at position .
  2. print: Print the list.
  3. remove e: Delete the first occurrence of integer .
  4. append e: Insert integer at the end of the list.
  5. sort: Sort the list.
  6. pop: Pop the last element from the list.
  7. reverse: Reverse the list.
Initialize your list and read in the value of followed by lines of commands where each command will be of the types listed above. Iterate through each command in order and perform the corresponding operation on your list.
Input Format
The first line contains an integer, , denoting the number of commands.
Each line of the subsequent lines contains one of the commands described above.
Constraints
  • The elements added to the list must be integers.
Output Format
For each command of type print, print the list on a new line.
Sample Input
12
insert 0 5
insert 1 10
insert 0 6
print 
remove 6
append 9
append 1
sort 
print
pop
reverse
print
Sample Output
[6, 5, 10]
[1, 5, 9, 10]
[9, 5, 1]
 

Python 3.0 code:

 
inputno=int(input())
newlist=[]
x=1
while (x<=inputno):
    temp=[]
    temp=input().split()
    if(temp[0]=="insert"):newlist.insert(int(temp[1]),int(temp[2]))
    if(temp[0]=="print"): print(newlist)
    if(temp[0]=="remove"):newlist.remove(int(temp[1]))
    if(temp[0]=="append"):newlist.append(int(temp[1]))
    if(temp[0]=="sort"):newlist.sort()
    if(temp[0]=="pop"):newlist.pop()
    if(temp[0]=="reverse"):newlist.reverse()
    x+=1;