{"trustable":true,"prependHtml":"\u003cstyle type\u003d\"text/css\"\u003e\n #problem-body \u003e pre {\n display: block;\n padding: 9.5px;\n margin: 0 0 10px;\n font-size: 13px;\n line-height: 1.42857143;\n word-break: break-all;\n word-wrap: break-word;\n color: #333;\n background: rgba(255, 255, 255, 0.5);\n border: 1px solid #ccc;\n border-radius: 6px;\n }\n\u003c/style\u003e\n","sections":[{"title":"","value":{"format":"HTML","content":"\u003cdiv id\u003d\"problem-body\"\u003e\n\t\u003cp\u003eYou 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?\u003c/p\u003e\r\n\u003cp\u003eAs for example, if S\u003d101000 then 10\u003cstrong\u003e100\u003c/strong\u003e0 → \u003cstrong\u003e100\u003c/strong\u003e → empty\u003c/p\u003e\r\n\u003cp\u003eIf S\u003d1010001 then 10\u003cstrong\u003e100\u003c/strong\u003e01 → \u003cstrong\u003e100\u003c/strong\u003e1 → 1 → not empty\u003c/p\u003e\r\n\u003ch3\u003eInput\u003c/h3\u003e\r\n\u003cp\u003eInput starts with an integer\u0026nbsp;\u003cstrong\u003eT (≤ 100)\u003c/strong\u003e, denoting the number of test cases.\u003c/p\u003e\r\n\u003cp\u003eEach case contains a string S. The size of string is at most 120000.\u003c/p\u003e\r\n\u003ch3\u003eOutput\u003c/h3\u003e\r\n\u003cp\u003eFor each test case, print the case number and “yes” if it is possible to make the string S empty, print “no” otherwise.\u003c/p\u003e\r\n\u003ch3\u003eExample\u003c/h3\u003e\r\n\u003cdiv\u003e\u003ctable class\u003d\"vjudge_sample\"\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e2\r\n101000\r\n1010001\r\n\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003eCase 1: yes\r\nCase 2: no\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n\u003c/div\u003e\r\n\u003cp\u003eProblem Setter: Md Abdul Alim, \u003cem\u003eDept. of Computer Science \u0026amp; Engineering, BUBT\u003c/em\u003e\u003c/p\u003e\r\n\n\u003c/div\u003e"}}]}