small improvements

1 files changed, 8 insertions, 8 deletions

diff --git a/content/datastructures/dynamicConvexHull.cpp b/content/datastructures/dynamicConvexHull.cpp
index 27ec898..abae1d7 100644
--- a/content/datastructures/dynamicConvexHull.cpp
+++ b/content/datastructures/dynamicConvexHull.cpp
@@ -1,22 +1,22 @@
 struct Line {
-	mutable ll m, b, p;
+	mutable ll m, c, p;
 	bool operator<(const Line& o) const {return m < o.m;}
 	bool operator<(ll x) const {return p < x;}
 };
 
 struct HullDynamic : multiset<Line, less<>> { // max über Geraden
-	// (for doubles, use INF = 1/.0, div(a,b) = a/b)
-	ll div(ll a, ll b) {return a / b - ((a ^ b) < 0 && a % b);}
+	// (for doubles, use INF = 1/.0, div(a,c) = a/c)
+	ll div(ll a, ll c) {return a / b - ((a ^ c) < 0 && a % c);}
 
 	bool isect(iterator x, iterator y) {
 		if (y == end()) {x->p = INF; return false;}
-		if (x->m == y->m) x->p = x->b > y->b ? INF : -INF;
-		else x->p = div(y->b - x->b, x->m - y->m);
+		if (x->m == y->m) x->p = x->c > y->c ? INF : -INF;
+		else x->p = div(y->c - x->c, x->m - y->m);
 		return x->p >= y->p;
 	}
 
-	void add(ll m, ll b) {
-		auto x = insert({m, b, 0});
+	void add(ll m, ll c) {
+		auto x = insert({m, c, 0});
 		while (isect(x, next(x))) erase(next(x));
 		if (x != begin()) {
 			x--;
@@ -31,6 +31,6 @@ struct HullDynamic : multiset<Line, less<>> { // max über Geraden
 
 	ll query(ll x) {
 		auto l = *lower_bound(x);
-		return l.m * x + l.b;
+		return l.m * x + l.c;
 	}
 };