Vector V

A vector V is a vector that is composed of two parts:

$v = x_1 ~ x_2 ~ x_3 ~ x_4 \dots x_n ~ y_1 ~ y_2~ y_3 \dots y_m$

such that $x_1 \dots x_n$ is ordered in a strictly decreasing manner and $y_1 \dots y_m$ is ordered in a strictly increasing manner. Furthermore, $x_n > y_1$ . Finally, we have that $n,m > 0$ . That is, neither part is empty.

We need to implement the function int picV(const vector<int>& v) with the following specification:

PRE: $v$ is a vector V and $\mid \! v \! \mid \geq 3$ .

POST: The position of $y_1$ in $v$ .

Observation

IMPORTANT: You only need to submit the requested function, and possibly other necessary actions and functions. However, you must keep the type definitions and #includes.

Input

An undetermined number of vectors V with the following format: an integer indicating their size, and then the vector V. Every vector V has a size greater than or equal to 3.

Output

The position within the vector where $y_1$ is.

Problem information

Author: PRO1

Generation: 2026-01-25T13:13:37.866Z