summaryrefslogtreecommitdiff
path: root/math/cycleDetection.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'math/cycleDetection.cpp')
-rw-r--r--math/cycleDetection.cpp16
1 files changed, 0 insertions, 16 deletions
diff --git a/math/cycleDetection.cpp b/math/cycleDetection.cpp
deleted file mode 100644
index 621af82..0000000
--- a/math/cycleDetection.cpp
+++ /dev/null
@@ -1,16 +0,0 @@
-void cycleDetection(ll x0, function<ll(ll)> f) {
- ll a = x0, b = f(x0), length = 1;
- for (ll power = 1; a != b; b = f(b), length++) {
- if (power == length) {
- power *= 2;
- length = 0;
- a = b;
- }}
- ll start = 0;
- a = x0; b = x0;
- for (ll i = 0; i < length; i++) b = f(b);
- while (a != b) {
- a = f(a);
- b = f(b);
- start++;
-}}