Sorted subsequence of size 3
Submissions: 8311   Accuracy:


  Difficulty: Easy   Marks: 2

Given an array A of N integers, Your task is to complete the function find3Numbers which finds any 3 elements in it such that A[i] < A[j] < A[k] and i < j < k. You need to return them as a vector, if no such element is present then return the empty vector of size 0.

The first line of input contains an integer T denoting the no of test cases. Then T test cases follow. The first line of each test case contains an integer N denoting the size of the array A in the next line are N space separated values of the array A.

For each test case in a new line output will be 1 if the sub-sequence returned by the function is present in array A else 0.

1 <= T <= 100
1 <= N <= 105
1 <= A[ ] <= 106


1 2 1 1 3
1 1 3

There are 2 test cases
For first test case
a sub-sequence 1 2 3 exist 
For second test case
no such sub-sequence exist

Note:The Input/Ouput format and Example given are used for system's internal purpose, and should be used by a user for Expected Output only. As it is a function problem, hence a user should not read any input from stdin/console. The task is to complete the function specified, and not to write the full code.

** For More Input/Output Examples Use 'Expected Output' option **

Contributor: Harshit Sidhwa
Author: Shubham Joshi 1

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