fix byoc_commit cost calculation

byoctf_discord.py

@@ -208,8 +208,23 @@ def renderChallenge(result: dict, preview=False):
 
         avg_flag_val = sum([f["flag_value"] for f in result["flags"]])/len(result["flags"])
 
-        break_even_solves = result["cost"] / avg_flag_val
+        flag_vals = [f["flag_value"] for f in result["flags"]]
+        num_flags = len(flag_vals)
+        flag_vals.sort()
 
+        least_middle_most = flag_vals[num_flags//2 - 1]
+
+
+        # break_even_solves = result["cost"] / avg_flag_val
+
+        # In [28]: vals = [100, 225, 250, 350, 400, 475, 600]
+
+        # In [29]: vals.sort();vals[len(vals)//2 - 1]
+        # Out[29]: 250
+
+        # This is the minimum number of solves of a obtainable flag to recoup cost.
+        break_even_solves = result["cost"] / least_middle_most
+
 
         # break_even_solves = result['cost'] / (avg_flag_val * byoc_rate)
 

example_challenges/xss_in_desc_test.toml

@@ -0,0 +1,15 @@
+author = "shyft_xero"
+challenge_title = "xss in desc test"
+uuid = "b42881f8-284d-47aa-9a7e-e2fde4c25d7f"
+challenge_description = "<script> alert(document.cookie)</script>"
+tags = [ "hack",]
+depends_on = []
+[[flags]]
+flag_title = "123"
+flag_value = 123
+flag_flag = "FLAG{xss_me_daddy}"
+
+[[hints]]
+hint_cost = 1
+hint_text = "<script> alert(document.cookie)</script>"
+