while(cin>>s){}cout<<s.size();
字符串最后一个单词的长度
https://www.nowcoder.com/practice/8c949ea5f36f422594b306a2300315da
#include <iostream> #include <string> using namespace std; int main() { string s; while(cin>>s){ } cout<<s.size()<<endl; } // 64 位输出请用 printf("%lld")