PRATA - Roti Prata

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IEEE is having its AGM next week and the president wants to serve cheese prata after the meeting. The subcommittee members are asked to go to food connection and get P(P<=1000) pratas packed for the function. The stall has L cooks(L<=50) and each cook has a rank R(1<=R<=8). A cook with a rank R can cook 1 prata in the first R minutes 1 more prata in the next 2R minutes, 1 more prata in 3R minutes and so on(he can only cook a complete prata) ( For example if a cook is ranked 2.. he will cook one prata in 2 minutes one more prata in the next 4 mins an one more in the next 6 minutes hence in total 12 minutes he cooks 3 pratas in 13 minutes also he can cook only 3 pratas as he does not have enough time for the 4th prata). The webmaster wants to know the minimum time to get the order done. Please write a program to help him out.

 

Input

The first line tells the number of test cases. Each test case consist of 2 lines. In the first line of the test case we have P the number of prata ordered. In the next line the first integer denotes the number of cooks L and L integers follow in the same line each denoting the rank of a cook.

Output

Print an integer which tells the number of minutes needed to get the order done.

 

Example

Input:

3
10
4 1 2 3 4
8
1 1
8
8 1 1 1 1 1 1 1 1
Output:
12
36
1

hide comments
beatrock: 2021-09-11 17:39:00

why we need 12 min in 1st example?
we can do it in 10
1 will cook 4 in 10 min
2 will cook 2 in 6 min
3 will cook 2 in 9 min
4s will cook 1 each in 4 min
4+2+2+1+1 = 10
Ohh understod first integer indicates the no of cooks so here 4 in not the rank of cook rather it is no of cook

Last edit: 2021-09-11 17:44:40
sj_2330: 2021-09-05 09:52:22

great question

bappa_10: 2021-08-14 13:23:18

what will be the max required time in worst case...???


Last edit: 2021-08-14 13:23:44
luser24: 2021-07-20 18:54:56

why we need 12 min in 1st example?
we can do it in 10
1 will cook 4 in 10 min
2 will cook 2 in 6 min
3 will cook 2 in 9 min
4s will cook 1 each in 4 min
4+2+2+1+1 = 10


amanscisingh: 2021-07-14 16:28:18

why tle in python? does this platform doesn't considers slow languages?

imran_2018: 2021-06-30 08:04:47

Easy peasy lemon squeezzzy !!. Very good question on binary search.

sagar_rohi: 2021-06-19 07:22:16

accepted in second Go!!!

koustubh38: 2021-06-13 07:51:42

was it easy as i have solved two problems on same concept or i have learn to sole these problems

coder_758: 2021-06-09 10:13:55

Ac in one go confidence level aasman farte hue

garvit_99: 2021-05-22 09:35:42

good question mja aagya krke


Added by:Saransh Bansal
Date:2011-05-14
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64
Resource:Own problem- NTU IEEE codejam 2011