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Diffstat (limited to 'math/transforms/xorTransform.cpp')
| -rw-r--r-- | math/transforms/xorTransform.cpp | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/math/transforms/xorTransform.cpp b/math/transforms/xorTransform.cpp deleted file mode 100644 index f9d1d82..0000000 --- a/math/transforms/xorTransform.cpp +++ /dev/null @@ -1,10 +0,0 @@ -void fft(vector<ll>& a, bool inv = false) { - int n = sz(a); - for (int s = 1; s < n; s *= 2) { - for (int i = 0; i < n; i += 2 * s) { - for (int j = i; j < i + s; j++) { - ll& u = a[j], &v = a[j + s]; - tie(u, v) = pair(u + v, u - v); - }}} - if (inv) for (ll& x : a) x /= n; -} |