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EMTY2 - Can You Make It Empty 2 |
You are given a string S with only 0 and 1. You can delete the string 100 from any position of S an infinite number of times and obtain a new S after concatenation. Is it possible to make the string empty?
As for example, if S=101000 then 101000 → 100 → empty
If S=1010001 then 1010001 → 1001 → 1 → not empty
Input
Input starts with an integer T (≤ 100), denoting the number of test cases.
Each case contains a string S. The size of string is at most 120000.
Output
For each test case, print the case number and “yes” if it is possible to make the string S empty, print “no” otherwise.
Example
Input: 2 101000 1010001 Output: Case 1: yes Case 2: no
Problem Setter: Md Abdul Alim, Dept. of Computer Science & Engineering, BUBT
Added by: | Alim |
Date: | 2014-03-03 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 GOSU |
Resource: | Own Problem |
hide comments
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2016-12-16 09:11:01
Did without stacks in O(n)........just count number of zeros and ones :D |
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2016-10-16 22:50:20
Standard Problem on Stacks. |
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2016-07-03 14:16:09 Anushka
There is a space after ':'.. Costed me a useless WA |
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2016-06-13 23:53:24
For those getting tle using stack, change your stack approach to the vector approach. Although such problems are always solved using stack, but it worked for me. Popping the elements can be replaced by a similar approach in vectors. :-) |
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2016-05-17 16:10:08
Easy one - O(n) !! AC in 1st attempt!!! Last edit: 2016-05-17 16:11:15 |
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2015-12-22 15:53:51
Trying to do it using stack ...can anyone provide me with testcases....can't understand what went wrong |
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2015-09-25 16:14:41 Aditya Kumar
Its direct!! O(N) |
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2015-08-11 13:32:27
Finally my 50th...... ;) |
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2015-06-10 17:17:50 Vipul Srivastava
there is a 'space' after ':' got many WA due to this |
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2015-06-08 14:58:06 BRAIN
O(n) :"> 0.00s |