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- using System;
- class ZeroSubset
- {
- static void Main(string[] args)
- {
- string[] input = Console.ReadLine().Split(' ');
- int[] numbers = new int[5];
- bool combinationToZero = true;
- for (int i = 0; i < input.Length; i++)
- {
- numbers[i] = int.Parse(input[i]);
- }
- if (numbers[0] == 0 && numbers[1] == 0 && numbers[2] == 0 && numbers[3] == 0 && numbers[4] == 0)
- {
- Console.WriteLine("{0} + {1} + {2} + {3} + {4} = 0", numbers[0], numbers[1], numbers[2], numbers[3], numbers[4]);
- return;
- }
- int allEqualZero = 0;
- for (int i = 0; i < 5; i++)
- {
- if (numbers[i] == 0)
- {
- Console.WriteLine("{0} = 0", numbers[i]);
- combinationToZero = false;
- }
- allEqualZero += numbers[i];
- }
- if (allEqualZero == 0)
- {
- Console.WriteLine("{0} + {1} + {2} + {3} + {4} = 0", numbers[0], numbers[1], numbers[2], numbers[3], numbers[4]);
- combinationToZero = false;
- }
- for (int i = 0; i < 4; i++)
- {
- for (int p = i + 1; p < 5; p++)
- {
- if (numbers[i] + numbers[p] == 0)
- {
- Console.WriteLine("{0} + {1} == 0", numbers[i], numbers[p]);
- combinationToZero = false;
- }
- for (int d = p + 1; d < 5; d++)
- {
- if (numbers[i] + numbers[p] + numbers[d] == 0)
- {
- Console.WriteLine("{0} + {1} + {2} = 0", numbers[i], numbers[p], numbers[d]);
- combinationToZero = false;
- }
- for (int f = d + 1; f < 5; f++)
- {
- if (numbers[i] + numbers[p] + numbers[d] + numbers[f]== 0)
- {
- Console.WriteLine("{0} + {1} + {2} + {3}= 0", numbers[i], numbers[p], numbers[d], numbers[f]);
- combinationToZero = false;
- }
- }
- }
- }
- }
- if (combinationToZero)
- {
- Console.WriteLine("no zero subset");
- }
- }
- }
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