std::countシリーズの関数なんで返り値がdifference_typeなん… 合致する要素がn個(nは負数)ってどういう状況…
2:14 AM - 31 Mar 2014
0 replies
1 retweet
0 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.