(C#)How to print each item of IList<IList<int>

Question

to print Array or 1 dimension List could use for loop(via using Length、count、array[i][j])，but how to print IList<IList<int>?

Answer 1

Have you tried nested foreach loop?

foreach (var list2 in list)
{
foreach (var element in list2)
{
Console.WriteLine(element);
}

Console.WriteLine();
}

Answer 2

to put LeerCode #15 3Sum to IDE test

IList<IList<int>> result = ThreeSum(num);
//實作測資
Console.WriteLine("[");
foreach (IList<int> i in result)
{
Console.Write("[");
string output="";
foreach (int j in i)
{
if (output != "")
{
output += ",";
}
output+= Convert.ToString(j);
}
Console.Write(output);
Console.WriteLine("]");
}
Console.WriteLine("]");

Answer 3

to put LeerCode #15 3Sum to IDE test (for loop)

IList<IList<int>> result = ThreeSum(num);
//實作測資
Console.WriteLine("[");
for( int idxI = 0; idxI < result.Count; idxI++)
{
IList<int> i = result[idxI];
string output = "";
Console.WriteLine("[");
for (int idxJ =0; idxJ < i.Count; idxJ++)
{
int j = i[idxJ];
if (output != "")
{
output += ",";
}
output += Convert.ToString(j);
}
Console.Write(output);
Console.WriteLine("]");
}
Console.WriteLine("]");