Thank you! I solved this problem= = With regard to the wrong logic, I will think it over later = =

I'm not sure whether I am right. I'm getting WA on test 1 in E. I checked the answer on my computer and it's 2. However, the result of the onlinejudge is 5, which makes me confused. I made the judge print the edges of the data1, it's 3 8 3 8 3 8 3 8 3 8 ???, and that made the wrong result. Also, I get RE on data1 if I chose C++11. I assume that the data of test1 is wrong? if not, why is the problem coursed? Thx