[STL] vector 중복 요소 제거

1. 중복 요소 제거

 1-1. 코드

vector<int> vNumberList;

vNumberList.push_back(3);

vNumberList.push_back(3);

vNumberList.push_back(2);

vNumberList.push_back(2);

vNumberList.push_back(1);

vNumberList.push_back(1);

// 중복 요소 제거

sort(vNumberList.begin(), vNumberList.end());

vNumberList.erase(unique(vNumberList.begin(), vNumberList.end()), vNumberList.end());

// vNumberList = 1, 2, 3