Create 2004A-ClosestPoint.cpp

Author: DionysiosB

2004A-ClosestPoint.cpp

@@ -0,0 +1,13 @@
+#include <cstdio>
+
+int main(){
+
+    long t; scanf("%ld", &t);
+    while(t--){
+        long n; scanf("%ld", &n);
+        long a, b;
+        for(long p = 0; p < n; p++){b = a; scanf("%ld", &a);}
+        puts( (n == 2 && (b - a > 1 || b - a < -1)) ? "YES" : "NO");
+    }
+
+}