Transform to prime

Given an array of n integers. Find minimum number to be inserted in array, so that sum of all elements of array becomes prime. If sum is already prime, then return 0.
Input:
First line consists of T test cases. First line of every test case consists of N, denoting number of elements of array. Second line of every test case consists of elements of array.
Output:
Single line output, print the required answer.
Constraints:
1<=T<=100
1<=N<=1000
Example:
Input:

1
5
2 4 6 8 12
Output:
5

**For More Examples Use Expected Output**


Post a Comment

0 Comments