{"trustable":false,"sections":[{"title":"","value":{"format":"MD","content":"蒟蒻zjl学长被一道数学题难住了,这个题要求从给定的N个数中找出4个数,使得这4个数的和为0,但zjl学长太弱了,想了114514分钟也没想出来,快去帮帮他。\n\nzjl学长不想直接得到答案,你只需要告诉他这个问题是否有解即可"}},{"title":"Input","value":{"format":"MD","content":"\u003chtml\u003e\n \u003chead\u003e\u003c/head\u003e\n \u003cbody\u003e\n 第1行,1个数N,N为数组的长度(4 \u0026lt;\u003d N \u0026lt;\u003d 1000) 第2 - N + 1行:A[i](-10^9 \u0026lt;\u003d A[i] \u0026lt;\u003d 10^9)\n \u003c/body\u003e\n\u003c/html\u003e"}},{"title":"Output","value":{"format":"MD","content":"如果有解,输出\"Yes\",否则输出\"No\""}},{"title":"Sample Input","value":{"format":"MD","content":"\u003cpre\u003e5\n-1\n1\n-5\n2\n4\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"MD","content":"\u003cpre\u003eYes\u003c/pre\u003e"}}]}