{"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":"HTML","content":"\u003cscript type\u003d\u0027text/x-mathjax-config\u0027\u003eMathJax.Hub.Config({tex2jax: { inlineMath: [[\u0027$\u0027,\u0027$\u0027]] } }); \u003c/script\u003e\n\u003cscript type\u003d\u0027text/javascript\u0027 src\u003d\u0027https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\u0027\u003e\u003c/script\u003e\n\u003cscript type\u003d\u0027text/javascript\u0027\u003esetTimeout(function(){MathJax.Hub.Queue([\u0027Typeset\u0027, MathJax.Hub, \u0027left_view\u0027]);}, 2000);\u003c/script\u003e\n\u003cdiv class\u003d\"panel_content\"\u003e\n HOHO,终于从Speakless手上赢走了所有的糖果,是Gardon吃糖果时有个特殊的癖好,就是不喜欢将一样的糖果放在一起吃,喜欢先吃一种,下一次吃另一种,这样;可是Gardon不知道是否存在一种吃糖果的顺序使得他能把所有糖果都吃完?请你写个程序帮忙计算一下。 \n \u003cbr\u003e \n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","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种糖果的数目Mi(0\u0026lt;Mi\u0026lt;\u003d1000000)。 \n\u003cbr\u003e"}},{"title":"Output","value":{"format":"HTML","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":"HTML","content":"\u003cpre\u003e2\n3\n4 1 1\n5\n5 4 3 2 1\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003eNo\nYes"}},{"title":"Hint","value":{"format":"HTML","content":"\u003cpre\u003eHint\nPlease use function scanf, if TLE\n \u003c/pre\u003e"}}]}