accumulate
accumulateの第3引数は初期値
#include <numeric> #include <iostream> #include <string> using namespace std; int main(){ string a[3] = {"abc","def","ghi"}; cout << accumulate(&a[0],&a[3],string())<<endl; }
abcdefghi
accumulateの第3引数は初期値
#include <numeric> #include <iostream> #include <string> using namespace std; int main(){ string a[3] = {"abc","def","ghi"}; cout << accumulate(&a[0],&a[3],string())<<endl; }
abcdefghi