小慕正在开发一个导航程序，需要计算从坐标原点0出发到达目标坐标点n所需的最少移动步数。每次移动只能沿着横坐标轴向左或向右移动2个单位或3个单位。 需要注意的是，移动过程中经过的坐标点可以是负数。
提示：带虚线的词点一下有通俗解释。
输入描述
坐标点n
输出描述
输出从坐标零点移动到坐标点n的最小步数 备注1 <= n <= 10^9 lnQbWjXvu63HzbJ","B7sEdJZNWo5fQqxRazIcICx6nMe","KrrXd3dbCoI2RPxuKa7ccE8UnRf","doxcnZi5Tuwpy9zRbmedNx0DPHh","doxcnkSVFNn6iQ7PRdDFDqqT1xg","doxcn9Ij3WSjS2HCeIKdq3DC3tc","doxcnYgTJEipmTYIIFJLFOHjhRb","doxcnCwSIHu7oacJLwhoL2PSN5g","doxcniZHGmQxImOIkyr90KWe0kh","Pv9idEwulo6VHJxYfJIcyQCanmc","doxcnWcawu0RLrt12qOlsyAvpNB","doxcnKDeOPQ476BPzXPabPXSJ7b","GeRRdNNzMo3Jexxz8G4c0miXnwd","YYBMdEAeqoYsgsxPRJdcgTuUnlg","doxcnOZ9uEtHRPlkpWDDSwy8m7f","Q2CodBxvoo0W5sxAVMQcxTBTnre","F2iZdtcSQo7o18xBcx8cEpudnHe","Hz8rdvnFQofXyUx73Fhc1cOenec","EQxvd2pAKoIKAOxaQhNcZqxhn4b","BvT2dJQ3toKGQUx2dF0cXSTZn2b","Ax1SdpVtwoaw5CxDe3DcJd3VnJv","EQFRdvpKzoXM3vxmTd9cuxiBnAg","doxcnrRz0xZFnJGQV4T4X1GBq6d","doxcnLPv5ISmbL70KMZWfKyBwxe","doxcn0e8IpYBNjptsjRK9ei1Txn","doxcn2EnInozuwxIBlCESWcBxoh","doxcnWFjPXoX4SqxgHHddtYZnVc","doxcnkb3E27TOm7oPI98VlLd5Vf"],"text":{"apool":{"nextNum":2,"numToAttrib":{"0":["author","7226281319222214684"],"1":["author","7115054903550050305"]}},"initialAttributedTexts":{"attribs":{"0":"*0+1*1+2*0+c"},"text":{"0":"【贪心】2023B-求最小步数"}}},"align":"","doc_info":{"editors":["7226281319222214684","7115054903550050305"],"options":["editors","create_time"],"deleted_editors":[]}}}},"payloadMap":{"B7sEdJZNWo5fQqxRazIcICx6nMe":{"level":1},"KrrXd3dbCoI2RPxuKa7ccE8UnRf":{"level":1}},"extra":{"mention_page_title":{},"external_mention_url":{}},"isKeepQuoteContainer":false,"selection":[{"id":11,"type":"text","selection":{"start":0,"end":19},"recordId":"B7sEdJZNWo5fQqxRazIcICx6nMe"},{"id":12,"type":"text","selection":{"start":0,"end":16},"recordId":"KrrXd3dbCoI2RPxuKa7ccE8UnRf"}],"pasteFlag":"ad0a5249-afef-464d-a924-096b9a2d4b38"}" data-lark-record-format="docx/record" class="lark-record-clipboard">
示例
示例 1
输入
4
输出
2
时间限制 1000 ms · 内存限制 128 MB