I was giving my first contest on codeforces yesterday but I got runtime error in answer I tried to figure our what was causing this but I didn't get anything can anyone please tell me where is the problem. Your help is much appreciated. Here is the link to the question that is "One and Two" -> https://codeforces.me/contest/1788/problem/A. Here is the link to my submission -> https://codeforces.me/contest/1788/submission/192907153
→ Pay attention
→ Top rated
| # | User | Rating |
|---|---|---|
| 1 | tourist | 4009 |
| 2 | jiangly | 3773 |
| 3 | Radewoosh | 3646 |
| 4 | ecnerwala | 3624 |
| 5 | jqdai0815 | 3620 |
| 5 | Benq | 3620 |
| 7 | orzdevinwang | 3612 |
| 8 | Geothermal | 3569 |
| 8 | cnnfls_csy | 3569 |
| 10 | Um_nik | 3396 |
→ Top contributors
| # | User | Contrib. |
|---|---|---|
| 1 | Um_nik | 164 |
| 2 | maomao90 | 160 |
| 3 | -is-this-fft- | 159 |
| 4 | atcoder_official | 158 |
| 4 | cry | 158 |
| 4 | awoo | 158 |
| 7 | adamant | 155 |
| 8 | nor | 154 |
| 9 | maroonrk | 151 |
| 9 | Dominater069 | 151 |
→ Find user
→ Recent actions
Codeforces (c) Copyright 2010-2024 Mike Mirzayanov
The only programming contests Web 2.0 platform
Server time: Sep/28/2024 08:16:25 (j3).
Desktop version, switch to mobile version.
Supported by
https://codeforces.me/contest/1788/submission/192915643
You can check out my implementation .
As array contains only 1 & 2 we just have to count no of 2's. If it is odd then we can't break the array into two sub arrays and if count is even then (count_of_2)/2 --> (let count of 2 is 6 then 3 in each subarray) if all are 1 then print 1 else print -1.Hope this is helpfull to you.
N.B: This might not be the best solution.
Sorry for my bad english...