{"trustable":false,"prependHtml":"\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\" type\u003d\"text/javascript\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"MD","content":"zjl姐姐终于买好了女装,但是zjl姐姐穿衣服有个特殊的癖好,就是不喜欢连着两天穿同一款女装,喜欢先穿一款,再穿另一款(同一款女装可以有多件,别问上一题为什么只有一件,zjl姐姐的心思就是这么反复无常)。可是zjl姐姐不知道是否存在一种穿女装的顺序使得他把所有的女装全都穿完,请你写个程序帮忙计算一下。"}},{"title":"Input","value":{"format":"MD","content":"第一行有一个整数T,接下来T组数据,每组数据占2行,第一行是一个整数N(0\u0026lt;N\u0026lt;\u003d1000000),第二行是N个数,表示N款女装的数目Mi(0\u0026lt;Mi\u0026lt;\u003d1000000)。 \n\u003cbr\u003e"}},{"title":"Output","value":{"format":"MD","content":"对于每组数据,输出一行,包含一个\"Yes\"或者\"No\"。 \n\u003cbr\u003e"}},{"title":"Sample Input","value":{"format":"MD","content":"\u003cpre\u003e2\n3\n4 1 1\n5\n5 4 3 2 1\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"MD","content":"No\nYes"}},{"title":"Hint","value":{"format":"MD","content":"\u003cpre\u003eHint\nPlease use function scanf, if TLE\n \u003c/pre\u003e"}}]}