33 lines
450 B
C++
33 lines
450 B
C++
// C++
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#include <iostream>
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#include <array>
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inline 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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int main()
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{
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std::cout << "test\n";
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const int N = 1000;
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std::array<int, N> A;
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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 : A)
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{
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for (int j : A)
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{
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ans += gcd(i, j);
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}
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}
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std::cout << ans << std::endl;
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}
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