{
   "question_id": 717268,
   "question_title": "从键盘输入一组数据建立单链表，然后输出奇数位上的元素。",
   "question_content": "输入\n第一行输入单链表长度n。\n第二行输入字符串。\n输出\n第一行：输出各奇数位元素\n样例输入\n7\nABCDEFG\n样例输出\nACEG",
   "difficulty": "简单",
   "answer_id": 710446,
   "answer_content": "\n```\n#include \"stdio.h\"\n#include \"stdlib.h\"\n\ntypedef struct node\n{\n\tchar x;\n\tnode * next;\n} LList;\n\nint main()\n{\n\tLList * header = NULL;\n\tnode * p;\n\tint n;\n\tscanf(\"%d\", &n);\n\tfflush(stdin);\n\tfor (int i = 0; i < n; i++)\n\t{\n\t\tif (!header) \n\t\t{\n\t\t\theader = (node *)malloc(sizeof(node));\n\t\t\tp = header;\n\t\t\tscanf(\"%c\", &(header->x));\n\t\t\theader->next = NULL;\n\t\t}\n\t\telse\n\t\t{\n\t\t\tp->next = (node *)malloc(sizeof(node));\n\t\t\tp = p->next;\n\t\t\tscanf(\"%c\", &(p->x));\n\t\t\tp->next = NULL;\n\t\t}\n\t}\n\tp = header;\n\tint i = 0;\n\twhile (p)\n\t{\n\t\tif (i++ % 2 == 0)\n\t\t\tprintf(\"%c\", p->x);\n\t\tp = p->next;\n\t}\n\treturn 0;\n}\n\n\n```\n\n![图片说明](https://img-ask.csdn.net/upload/201812/16/1544968420_383190.gif)\n",
   "tag_name": "c语言",
   "cpp": "#include \"stdio.h\"\n#include \"stdlib.h\"\ntypedef struct node\n{\n\tchar x;\n\tnode * next;\n} LList;\nint main()\n{\n\tLList * header = NULL;\n\tnode * p;\n\tint n;\n\tscanf(\"%d\", &n);\n\tfflush(stdin);\n\tfor (int i = 0; i < n; i++)\n\t{\n\t\tif (!header) \n\t\t{\n\t\t\theader = (node *)malloc(sizeof(node));\n\t\t\tp = header;\n\t\t\tscanf(\"%c\", &(header->x));\n\t\t\theader->next = NULL;\n\t\t}\n\t\telse\n\t\t{\n\t\t\tp->next = (node *)malloc(sizeof(node));\n\t\t\tp = p->next;\n\t\t\tscanf(\"%c\", &(p->x));\n\t\t\tp->next = NULL;\n\t\t}\n\t}\n\tp = header;\n\tint i = 0;\n\twhile (p)\n\t{\n\t\tif (i++ % 2 == 0)\n\t\t\tprintf(\"%c\", p->x);\n\t\tp = p->next;\n\t}\n\treturn 0;\n}",
   "topic_link": "https://bbs.csdn.net/topics/600470152",
   "status": 1,
   "keywords": "动态表,表扩张,算法中阶,摊还分析,高级设计和分析技术",
   "license": "csdn.net",
   "notebook": {
      "cpp": "https://codechina.csdn.net/csdn/csdn-daily-code/-/jupyter/master/data/notebook/answer/ipynb/cpp/42.ipynb?type=file"
   },
   "notebook_enable": 1
}