The following piece of code traverses the list of integers, removes duplicate numbers, if any, and returns the remaining list.
More like this:
#include <iostream> #include <vector> #include <algorithm> void removeDuplicates(std::vector<int> &list) { auto end = list.end(); for (auto i = list.begin(); i != end; ++i) { end = std::remove(i + 1, end, *i); } list.erase(end, list.end()); } int main() { std::vector<int> v = { 7, 2, 3, 5, 1, 7, 4, 7, 8, 1 }; removeDuplicates(v); for (auto i = v.cbegin(); i != v.cend(); ++i) std::cout << *i << ' '; return 0; }
Output:

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