'commit'

LuoGu/RuMen/P1152.cpp

@@ -0,0 +1,37 @@
+#include<bits/stdc++.h>//万能头文件
+
+using namespace std;
+
+int main() {
+    int n;
+    cin >> n;
+
+    int arr[1000] = {0};
+
+    for (int i = 0; i < n; i++) {
+        cin >> arr[i];
+    }
+
+    set<int> s;
+    for (int i = 1; i < n; i++) {
+        int x = abs(arr[i] - arr[i - 1]);
+        s.insert(x);
+    }
+
+    //输出
+//    set<int>::iterator it;
+//    for(it=s.begin (); it!=s.end (); it++) {
+//        printf("%d\n",*it);
+//    }
+    for (int i = 1; i <= n - 1; i++) {
+        if (s.count(i) == 0) {
+            cout << "Not jolly" << endl;
+            break;
+        }
+
+        if (i == n - 1) {
+            cout << "Jolly" << endl;
+        }
+    }
+    return 0;
+}