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| author | mzuenni <michi.zuendorf@gmail.com> | 2022-06-27 17:19:28 +0200 |
|---|---|---|
| committer | mzuenni <michi.zuendorf@gmail.com> | 2022-06-27 17:19:28 +0200 |
| commit | 5ab8a5088b729a9953b8dff1b2a985dc8fb2098b (patch) | |
| tree | ed40d6936c0e9eee40ba62751cbf99ecddbaddc2 /math/modMulIterativ.cpp | |
| parent | adabbad9c51cf7cd3874bfde8eac1fbcf84fec10 (diff) | |
updated tcr
Diffstat (limited to 'math/modMulIterativ.cpp')
| -rw-r--r-- | math/modMulIterativ.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/math/modMulIterativ.cpp b/math/modMulIterativ.cpp new file mode 100644 index 0000000..611f09a --- /dev/null +++ b/math/modMulIterativ.cpp @@ -0,0 +1,9 @@ +ll mulMod(ll a, ll b, ll n) { + ll res = 0; + while (b > 0) { + if (b & 1) res = (a + res) % n; + a = (a * 2) % n; + b /= 2; + } + return res; +} |