'commit'

TangDou/LuoGuBook/P1152_1.cpp

@@ -0,0 +1,23 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+const int N = 1010;
+int a[N], c[N];
+
+int main() {
+    int n;
+    scanf("%d", &n);
+    for (int i = 1; i <= n; i++) scanf("%d", &a[i]);//读入
+    for (int i = 1; i < n; i++) c[i] = abs(a[i] - a[i + 1]);//处理差
+    //按差值由小到大排序
+    sort(c + 1, c + n);
+    //检查一下缺少哪个数字，缺少的条件是c[i]==i
+    for (int i = 1; i < n; i++) {
+        if (c[i] != i) {
+            printf("Not jolly");
+            return 0;
+        }
+    }
+    printf("Jolly");
+    return 0;
+}