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| author | Gloria Mundi <gloria@gloria-mundi.eu> | 2024-04-01 19:59:01 +0200 |
|---|---|---|
| committer | Gloria Mundi <gloria@gloria-mundi.eu> | 2024-04-01 19:59:01 +0200 |
| commit | 33343f96d94f2d7f12567b1c227e4e2399c8bd1b (patch) | |
| tree | 16b5ef80ee4605ce88410911fbb6beb6dfc1d7b2 /math/extendedEuclid.cpp | |
| parent | 4fc39dcd54243609febc1ce4c8a1470b3d31fd47 (diff) | |
| parent | 98aa28427350e72cb9abe4071c0c6b6870b7e6cc (diff) | |
merge mzuenni changes
Diffstat (limited to 'math/extendedEuclid.cpp')
| -rw-r--r-- | math/extendedEuclid.cpp | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/math/extendedEuclid.cpp b/math/extendedEuclid.cpp index d016a63..ecf4a16 100644 --- a/math/extendedEuclid.cpp +++ b/math/extendedEuclid.cpp @@ -1,7 +1,6 @@ // a*x + b*y = ggt(a, b) -ll extendedEuclid(ll a, ll b, ll& x, ll& y) { - if (a == 0) {x = 0; y = 1; return b;} - ll x1, y1, d = extendedEuclid(b % a, a, x1, y1); - x = y1 - (b / a) * x1; y = x1; - return d; +array<ll, 3> extendedEuclid(ll a, ll b) { + if (a == 0) return {b, 0, 1}; + auto [d, x, y] = extendedEuclid(b % a, a); + return {d, y - (b / a) * x, x}; } |
