A - Tokitsukaze and All Zero Sequence

https://codeforces.com/contest/1678/submission/156370569

Codeforces/1678/A/A.cpp

@@ -0,0 +1,37 @@
+#include <algorithm>
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+int t, n, a[1010];
+
+signed main() {
+    std::ios::sync_with_stdio(false);
+
+    cin >> t;
+
+    while (t--) {
+        int cnt = 0;
+
+        cin >> n;
+        for (int i = 0; i < n; i++) {
+            cin >> a[i];
+        }
+
+        std::sort(a, a + n);
+
+        for (int i = 0; i < n; i++) {
+            cnt += !a[i];
+        }
+
+        bool f = false;
+        for (int i = 1; i < n; i++)
+            f = f || (a[i] == a[i - 1]);
+
+        cout << (cnt ? n - cnt : n + !f) << endl;
+    }
+
+    return 0;
+}