33 lines
564 B
C#
33 lines
564 B
C#
// C#
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using System;
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class test
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{
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static int gcd(int a, int b)
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{
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if (b > 0) return gcd(b, a % b);
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else return a;
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}
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static void Main()
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{
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Console.WriteLine("test");
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const int N = 1000;
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int[] A = new int[N];
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for (int i = 0; i < N; i++)
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{
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A[i] = i;
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}
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int ans = 0;
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for (int i = 0; i < N; i++)
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{
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for (int j = 0; j < N; j++)
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{
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ans += gcd(i, j);
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}
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}
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Console.WriteLine(ans);
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}
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}
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