refactoring: refactored negative number handling into one line

src/kgV/kgV.c

@@ -4,7 +4,5 @@
 
 int kgV(int a, int b){
     if(a == 0 || b == 0) return 0;
-    int kgV = a*b/ ggT(a, b);
-    int absoluteKgV = abs(kgV);
-    return absoluteKgV;
+    return abs(a*b/ ggT(a, b));
 }