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| author | Noobie99 <noob999noob999@gmail.com> | 2024-02-05 22:23:53 +0100 |
|---|---|---|
| committer | Noobie99 <noob999noob999@gmail.com> | 2024-02-05 22:23:53 +0100 |
| commit | f4dafa64e27e63d8cde5adcfbfa98e2a30fb7504 (patch) | |
| tree | 936fc0e98ac7e1ff6222b7657fb4a6b90d798080 /math/transforms/multiply.cpp | |
| parent | 631335a9c1dd0fba0e17977253d0a4b033aee59a (diff) | |
renamed ntt and bitwiseConv function + more multiply functions
Diffstat (limited to 'math/transforms/multiply.cpp')
| -rw-r--r-- | math/transforms/multiply.cpp | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/math/transforms/multiply.cpp b/math/transforms/multiply.cpp deleted file mode 100644 index 59c394e..0000000 --- a/math/transforms/multiply.cpp +++ /dev/null @@ -1,12 +0,0 @@ -vector<ll> mul(vector<ll>& a, vector<ll>& b) { - int n = 1 << (__lg(sz(a) + sz(b)) + 1); - vector<cplx> a2(all(a)), b2(all(b)); - a2.resize(n), b2.resize(n); - fft(a2), fft(b2); - for (int i=0; i<n; i++) a2[i] *= b2[i]; - fft(a2, true); - - vector<ll> ans(n); - for (int i=0; i<n; i++) ans[i] = llround(a2[i].real()); - return ans; -} |
