7481: [CSES Problem Set] Number Spiral
[Creator : ]
Description
A number spiral is an infinite grid whose upper-left square has number $1$.
Here are the first five layers of the spiral:
Your task is to find out the number in row $y$ and column $x$.
Here are the first five la
Your task is to find out the number in row $y$ and column $x$.
Input
The first input line contains an integer $t$: the number of tests.
After this, there are $t$ lines, each containing integers $y$ and $x$.
After this, there are $t$ lines, each containing integers $y$ and $x$.
Output
For each test, print the number in row $y$ and column $x$.
Constraints
$1≤t≤10^5$
$1≤y,x≤10^9$
$1≤y,x≤10^9$
Sample 1 Input
3
2 3
1 1
4 2
Sample 1 Output
8
1
15