题目描述
小明要去一个国家旅游。这个国家有#%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%220%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%22888%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%221777%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(2665%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(3598%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%9F%8E%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(4531%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%B8%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(5464%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%EF%BC%8C%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(6396%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%BC%96%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(7329%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%8F%B7%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(8262%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%BA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(9195%2C0)%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-31%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-31%22%20x%3D%22500%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-31%22%20x%3D%221001%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(10697%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%87%B3%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%2211629%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%2212518%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%2213406%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(14295%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%EF%BC%8C%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(15228%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%B9%B6%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(16161%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%94%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(17094%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%9C%89%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4D%22%20x%3D%2218026%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4D%22%20x%3D%2219078%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4D%22%20x%3D%2220129%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(21181%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%9D%A1%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(22114%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E9%81%93%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(23047%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%B7%AF%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(23980%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%BF%9E%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(24912%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%8E%A5%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20t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所以他就需要选择最先到达的城市,并制定一条路线以城市i为终点,使得线路上除了第一个城市,每个城市都在路线前一个城市东面,并且满足这个前提下还希望游览的城市尽量多。
现在,你只知道每一条道路所连接的两个城市的相对位置关系,但并不知道所有城市具体的位置。现在对于所有的i,都需要你为小明制定一条路线,并求出以城市%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%220%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%22345%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%22691%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(1036%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%BA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(1969%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%BB%88%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(2902%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%82%B9%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(3835%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%9C%80%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(4767%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%A4%9A%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(5700%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%83%BD%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(6633%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%A4%9F%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(7566%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%B8%B8%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(8499%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%A7%88%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(9432%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%A4%9A%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(10365%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%B0%91%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(11298%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(12230%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%9F%8E%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(13163%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%B8%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(14096%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E3%80%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
输入输出格式
输入格式:
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输出格式:
%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%220%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%22888%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4E%22%20x%3D%221777%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(2665%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%A1%8C%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(3598%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%EF%BC%8C%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(4531%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%AC%AC%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%225464%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%225809%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%226155%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(6500%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%A1%8C%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(7433%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%8C%85%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(8366%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%90%AB%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(9299%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%80%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(10232%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(11164%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%AD%A3%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(12097%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%95%B4%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(13030%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%95%B0%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(13963%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%EF%BC%8C%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(14896%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%A1%A8%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(15829%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%A4%BA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(16762%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%BB%A5%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(17695%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%AC%AC%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%2218627%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%2218973%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-69%22%20x%3D%2219318%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(19664%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(20597%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%9F%8E%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(21530%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%B8%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(22462%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%BA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(23395%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%BB%88%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(24328%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%82%B9%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(25261%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%9C%80%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(26194%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%A4%9A%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(27127%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%83%BD%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(28060%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%B8%B8%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(28993%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%A7%88%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(29925%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%A4%9A%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(30858%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%B0%91%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(31791%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(32724%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%9F%8E%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(33657%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%B8%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(34590%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E3%80%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
输入输出样例
输入样例#1:
复制
5 6
1 2
1 3
2 3
2 4
3 4
2 5
输出样例#1: 复制
1
2
3
4
3
说明
均选择从城市1出发可以得到以上答案。
对于%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-32%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-30%22%20x%3D%22500%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
对于%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-36%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-30%22%20x%3D%22500%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
对于%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-31%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-30%22%20x%3D%22500%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-30%22%20x%3D%221001%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
#include
#include
#include
#include
#include
#include
#include
#include
EPFL - Fighting