C#
x
18
1
using System;2
3
namespace ConsoleApp64
{5
class Program6
{7
static void Main(string[] args)8
{9
double a;10
a=Console.ReadLine();11
for (int i = 1; i <= a; i++) {12
Console.Write(i + "");13
}14
15
}16
}17
}18
$ mcs -out:prog.exe prog.cs
Start
prog.cs(10,23): error CS0029: Cannot implicitly convert type `string' to `double'
Compilation failed: 1 error(s), 0 warnings
1
Finish