题解 | 小红喜欢1 c#

using System;
using System.Collections.Generic;
using System.Linq;
public class Program {
    public static void Main() {
        string[] inputs = Console.ReadLine().Split(" ");

        for(int i =0; i < inputs.Length; i++)
        {
            if(int.Parse(inputs[i]) == 1)
            {
                Console.WriteLine(i+1);
            }
        }

    }
}