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Jul 5th, 2016
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C# 0.59 KB | None | 0 0
  1. using System;
  2. using System.Linq;
  3. using System.Collections.Generic;
  4.  
  5. class Program
  6. {
  7.     static void Main()
  8.     {
  9.         int size = int.Parse(Console.ReadLine());
  10.         int[][] n = new int[size][];
  11.         for (int i = 0; i < size; i++)
  12.         {
  13.             n[i] = Console.ReadLine().Split().Select(int.Parse).ToArray();
  14.         }
  15.         int[] d = Console.ReadLine().Split().Select(int.Parse).ToArray();
  16.         long sum = n[0][d[0]];
  17.         for (int i = 0; i < d.Length-1; i++)
  18.         {
  19.             sum += n[d[i]][d[i + 1]];
  20.         }
  21.         Console.WriteLine(sum);
  22.     }
  23. }
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