0_0_17200623_31115.cpp:1:1: error: stray '\351' in program
题目大意：求出任意两点之间的距离，并求其平均值这个题我们是在组队训练的时候做的，看到这个题，队友马上就给我了，简单，但是由于数据类型的选择，和精度的问题，我们到最后都没有A，可惜啊，这是比较简单的一个题，有了思路就好办了，但是，不提了，分析题目吧看到这个题的时候可能无从下手，当想到每条边用多少次之后就比较简单了，一条边用的次数是其左边点的个数乘以右边点的个数，简单了吧，我用的是树的邻接存储，很经典的存树方法，算法也比较的简单！最开始的时候我的dp值用的是long long 我知道用int是不行的但是没想到用long long 也不可以！这个题精度是如何丢失的，我真的想不明白，有知道的教教我！谢谢 #include <iostream>
^
0_0_17200623_31115.cpp:1:1: error: stray '\242' in program
0_0_17200623_31115.cpp:1:1: error: stray '\230' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\233' in program
0_0_17200623_31115.cpp:1:1: error: stray '\256' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\244' in program
0_0_17200623_31115.cpp:1:1: error: stray '\247' in program
0_0_17200623_31115.cpp:1:1: error: stray '\346' in program
0_0_17200623_31115.cpp:1:1: error: stray '\204' in program
0_0_17200623_31115.cpp:1:1: error: stray '\217' in program
0_0_17200623_31115.cpp:1:1: error: stray '\357' in program
0_0_17200623_31115.cpp:1:1: error: stray '\274' in program
0_0_17200623_31115.cpp:1:1: error: stray '\232' in program
0_0_17200623_31115.cpp:1:1: error: stray '\346' in program
0_0_17200623_31115.cpp:1:1: error: stray '\261' in program
0_0_17200623_31115.cpp:1:1: error: stray '\202' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\207' in program
0_0_17200623_31115.cpp:1:1: error: stray '\272' in program
0_0_17200623_31115.cpp:1:1: error: stray '\344' in program
0_0_17200623_31115.cpp:1:1: error: stray '\273' in program
0_0_17200623_31115.cpp:1:1: error: stray '\273' in program
0_0_17200623_31115.cpp:1:1: error: stray '\346' in program
0_0_17200623_31115.cpp:1:1: error: stray '\204' in program
0_0_17200623_31115.cpp:1:1: error: stray '\217' in program
0_0_17200623_31115.cpp:1:1: error: stray '\344' in program
0_0_17200623_31115.cpp:1:1: error: stray '\270' in program
0_0_17200623_31115.cpp:1:1: error: stray '\244' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\202' in program
0_0_17200623_31115.cpp:1:1: error: stray '\271' in program
0_0_17200623_31115.cpp:1:1: error: stray '\344' in program
0_0_17200623_31115.cpp:1:1: error: stray '\271' in program
0_0_17200623_31115.cpp:1:1: error: stray '\213' in program
0_0_17200623_31115.cpp:1:1: error: stray '\351' in program
0_0_17200623_31115.cpp:1:1: error: stray '\227' in program
0_0_17200623_31115.cpp:1:1: error: stray '\264' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\232' in program
0_0_17200623_31115.cpp:1:1: error: stray '\204' in program
0_0_17200623_31115.cpp:1:1: error: stray '\350' in program
0_0_17200623_31115.cpp:1:1: error: stray '\267' in program
0_0_17200623_31115.cpp:1:1: error: stray '\235' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\246' in program
0_0_17200623_31115.cpp:1:1: error: stray '\273' in program
0_0_17200623_31115.cpp:1:1: error: stray '\357' in program
0_0_17200623_31115.cpp:1:1: error: stray '\274' in program
0_0_17200623_31115.cpp:1:1: error: stray '\214' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\271' in program
0_0_17200623_31115.cpp:1:1: error: stray '\266' in program
0_0_17200623_31115.cpp:1:1: error: stray '\346' in program
0_0_17200623_31115.cpp:1:1: error: stray '\261' in program
0_0_17200623_31115.cpp:1:1: error: stray '\202' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\205' in program
0_0_17200623_31115.cpp:1:1: error: stray '\266' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\271' in program
0_0_17200623_31115.cpp:1:1: error: stray '\263' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\235' in program
0_0_17200623_31115.cpp:1:1: error: stray '\207' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\200' in program
0_0_17200623_31115.cpp:1:1: error: stray '\274' in program
0_0_17200623_31115.cpp:1:1: error: stray '\350' in program
0_0_17200623_31115.cpp:1:1: error: stray '\277' in program
0_0_17200623_31115.cpp:1:1: error: stray '\231' in program
0_0_17200623_31115.cpp:1:1: error: stray '\344' in program
0_0_17200623_31115.cpp:1:1: error: stray '\270' in program
0_0_17200623_31115.cpp:1:1: error: stray '\252' in program
0_0_17200623_31115.cpp:1:1: error: stray '\351' in program
0_0_17200623_31115.cpp:1:1: error: stray '\242' in program
0_0_17200623_31115.cpp:1:1: error: stray '\230' in program
0_0_17200623_31115.cpp:1:1: error: stray '\346' in program
0_0_17200623_31115.cpp:1:1: error: stray '\210' in program
0_0_17200623_31115.cpp:1:1: error: stray '\221' in program
0_0_17200623_31115.cpp:1:1: error: stray '\344' in program
0_0_17200623_31115.cpp:1:1: error: stray '\273' in program
0_0_17200623_31115.cpp:1:1: error: stray '\254' in program
0_0_17200623_31115.cpp:1:1: error: stray '\346' in program
0_0_17200623_31115.cpp:1:1: error: stray '\230' in program
0_0_17200623_31115.cpp:1:1: error: stray '\257' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\234' in program
0_0_17200623_31115.cpp:1:1: error: stray '\250' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\273' in program
0_0_17200623_31115.cpp:1:1: error: stray '\204' in program
0_0_17200623_31115.cpp:1:1: error: stray '\351' in program
0_0_17200623_31115.cpp:1:1: error: stray '\230' in program
0_0_17200623_31115.cpp:1:1: error: stray '\237' in program
0_0_17200623_31115.cpp:1:1: error: stray '\350' in program
0_0_17200623_31115.cpp:1:1: error: stray '\256' in program
0_0_17200623_31115.cpp:1:1: error: stray '\255' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\273' in program
0_0_17200623_31115.cpp:1:1: error: stray '\203' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\232' in program
0_0_17200623_31115.cpp:1:1: error: stray '\204' in program
0_0_17200623_31115.cpp:1:1: error: stray '\346' in program
0_0_17200623_31115.cpp:1:1: error: stray '\227' in program
0_0_17200623_31115.cpp:1:1: error: stray '\266' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\200' in program
0_0_17200623_31115.cpp:1:1: error: stray '\231' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\201' in program
0_0_17200623_31115.cpp:1:1: error: stray '\232' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\232' in program
0_0_17200623_31115.cpp:1:1: error: stray '\204' in program
0_0_17200623_31115.cpp:1:1: error: stray '\357' in program
0_0_17200623_31115.cpp:1:1: error: stray '\274' in program
0_0_17200623_31115.cpp:1:1: error: stray '\214' in program
0_0_17200623_31115.cpp:1:1: error: stray '\347' in program
0_0_17200623_31115.cpp:1:1: error: stray '\234' in program
0_0_17200623_31115.cpp:1:1: error: stray '\213' in program
0_0_17200623_31115.cpp:1:1: error: stray '\345' in program
0_0_17200623_31115.cpp:1:1: error: stray '\210' in program
0_0_17200623_31115.cpp:1:1: error: stray '\260' in program
0_0_17200623_31115.cpp:1:1: error: stray '\350' in program
0_0_17200623_31115.cpp:1:1: error: stray '\277' in program
0_0_17200623_31115.cpp:1:1: error: stray '\231' in program
0_0_17200623_31115.cpp:1:1: error: stray '\344' in program
0_0_17200623_31115.cpp:1:1: error: stray '\270' in program
0_0_17200623_31115.cpp:1:1: error: stray '\252' in program
0_0_17200623_31115.cpp:1:1: error: stray '\351' in program
0_0_17200623_31115.cpp:1:1: error: stray '\242' in program
0_0_17200623_31115.cpp:1:1: error: stray '\230' in program
0_0_17200623_31115.cpp:1:1: error: stray '\357' in program
0_0_17200623_31115.cpp:1:1: error: stray '\274' in program
0_0_17200623_31115.cpp:1:1: error: st
|
