#include <vector>
#include <string>
int main() {
std::vector<std::string> str_v;
str_v.push_back("abc");
str_v.push_back("hello world!!");
str_v.push_back("i'm a coder.");
for(auto it = str_v.beigin();it != str_v.end(); it++) {
printf("%s
",it->c_str());
}
}