Using find with reverse iteration
#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>
using namespace std;
int main()
{
string s("It is him.");
vector<char> vector1(s.begin(), s.end());
ostream_iterator<char> out(cout, " ");
cout << "chars from the last t to the beginning: ";
vector<char>::reverse_iterator r = find(vector1.rbegin(), vector1.rend(), 't');
copy(r, vector1.rend(), out); cout << endl;
cout << "chars from the last t to the end: ";
copy(r.base() - 1, vector1.end(), out); cout << endl;
return 0;
}
/*
chars from the last t to the beginning: t I
chars from the last t to the end: t i s h i m .
*/