'commit'

TangDou/LuoGuBook/P1059.cpp

@@ -0,0 +1,21 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+const int N = 110;
+int a[N];
+
+int main() {
+    int n;
+    cin >> n;
+    for (int i = 0; i < n; i++) cin >> a[i];
+    //排序，从小到大
+    sort(a, a + n);
+    //去重
+    int cnt = unique(a, a + n) - a;
+
+    //剩余个数
+    cout << cnt << endl;
+    for (int i = 0; i < cnt; i++) cout << a[i] << " ";
+
+    return 0;
+}