i tried the suggested input in following code:-
t=int(input())
li=[1,2,3,4,5,6,7]
y=’’;l=[]
is_this_true=True
for i in range(t):
le=int(input())
l+=(map(int,input().split()))
mid =le//2
for k in li:
if k not in l:
is_this_true=False
break
for j in range(mid):
if (l[mid-j]==l[mid+j]) and (l[j]+1==l[j+1] or l[j]==l[j+1]) and (is_this_true) and l[mid]==7:
y=“yes”
else:
y=“no”
break
print(y)
l=[]
is the answer “no” for this input??
The expected output for the test input:
1
13
2 2 3 4 5 6 7 6 5 4 3 2 2
is indeed no - otherwise, what would a_1 be?
i am also getting “no”, but my code is still wrong…
Please either format your new code or (better!) link to your submission - the forum software has mangled it and it won’t compile! 
Consider the test input:
3
14
1 2 3 4 5 6 7 6 5 4 3 2 1 1
13
1 2 3 4 5 6 8 6 5 4 3 2 1
19
1 2 3 4 4 5 6 6 6 7 6 6 6 5 4 4 3 2 1
thanks, i understood my mistake.
this is a partially correct answer, I am not getting the cases that might give error…please suggest some cases that might go wrong in this code of " chef and pairs"
https://www.codechef.com/viewsolution/56786343
i am getting this code wrong but i am getting all the given results correctly…please point out the mistake…!!
https://www.codechef.com/viewsolution/57409941
Your solution gives the wrong output for the test input:
1
aabbcccddddd
Is the answer Dynamic as 2+3=5???(2a ,3c and 5d)
No, it’s not Dynamic.
What permutation C have you chosen?
Means? I did not understand the question…
Can you please explain how it is Not dynamic??
i wrote this code for problem chef and proxy, it is working alright for me but it is showing that answer is not correct , please point out the mistake!!!
https://www.codechef.com/viewsolution/58536954
hii,im new to competitive programming and when im trying this particular program i was getting my desired output but it shows partially correct can you please look into it and guide me : CodeChef: Practical coding for everyone
Hey guys , im 20 and in 2nd year of my university. I was exploring into competitive programming and had a question in mind that is 20 too late as a start to be good at CP? I have aims on getting to the top charts. Plus some advices needed as a begginer in CP !
Hey… I’ve been stuck at this question for quite some time now… Review: ArrayList Operations – CodeChef: Practical coding for everyone
All sample test cases are passing but still getting wrong answer while submitting… not able to figure out which test case it is failing for
Here’s my code :
import java.util.*;
class Codechef
{
public static void main (String[] args)
{
Scanner read = new Scanner(System.in);
int t = read.nextInt();
for(int i=0; i<t; i++)
{
ArrayList a = new ArrayList();
int n = read.nextInt();
for(int j=1; j<=n; j++){
int ele = read.nextInt();
a.add(ele);
}
// Update the code below to solve this problem
for(int j=0; j<a.size()-1;){
if(j<a.size()-1 && a.get(j)==a.get(j+1) || j>0 && a.get(j)==a.get(j-1)){
a.remove(j);
}
else j++;
}
System.out.println(a.size());
}
}
}