[Init] Solved solutions

cs/242B.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Linq;
+
+namespace problem_242B
+{
+	class problem_242B
+	{
+		public static void Main(string[] args)
+		{
+			int n = int.Parse(Console.ReadLine());
+			int[] a = new int[n];
+			int[] b = new int[n];
+			for (int i = 0; i < n; i++)
+			{
+				string[] ip = Console.ReadLine().Split(' ');
+				a[i] = int.Parse(ip[0]);
+				b[i] = int.Parse(ip[1]);
+			}
+			int m1 = a.Min();
+			int m2 = b.Max();
+			int c = -1;
+			for (int i = 0; i < n; i++)
+			{
+				if (a[i] == m1 && b[i] == m2)
+				{
+					c = i + 1;
+					break;
+				}
+			}
+			Console.Write(c);
+		}
+	}
+}