我想知道为什么R题用stl为什么过不去
#include <iostream> #include <cstring> #include <cstdlib> #include <algorithm> using namespace std; int a[100005] = {0}; int main() { int n; cin >> n; for (int i = 0; i < n; i++) { cin >> a[i]; } int num = unique(a, a + n) - a; sort (a, a + num); for (int i = 0; i < num; i++) cout << a[i] << " "; return 0; }