Stage 2 summary at 50 accepted trajectories

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tasks_gen/train/G1135/spec.md

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+# 1. Goal
+A leisure centre prices the entry tickets of its swimming pool. The ticket
+desk calls the class for each visitor and prints the price. The desk also needs
+one status code for each booking request.
+
+# 2. Open questions
+None.
+
+# 3. Context
+- No object of this task exists yet. Create everything that the contract lists.
+- The leisure centre has four areas. Their area codes are IN (indoor pool),
+  OU (outdoor pool), SA (sauna area) and AL (all areas).
+- The visitor rates are A (adult), C (child) and S (senior).
+- The day keys are MO, TU, WE, TH, FR, SA and SU.
+
+# 4. Contract
+- Create the class {{P}}POOL_TICKET in package $TMP.
+- The class is public and final. It has a public constructor without parameters.
+- The class has these public types:
+  ty_zone TYPE c LENGTH 2, ty_rate TYPE c LENGTH 1, ty_day TYPE c LENGTH 2,
+  ty_flag TYPE c LENGTH 1, ty_status TYPE c LENGTH 2,
+  ty_amount TYPE p LENGTH 8 DECIMALS 2.
+- The class has the public constant structure c_status with the components
+  ok = 'OK', zone = 'ZN', rate = 'RT', day = 'DY'.
+- The class has the public constant structure c_flag with the components
+  member = 'X', guest = ' '.
+- The class has these public methods:
+  check_booking
+    IMPORTING iv_zone TYPE ty_zone
+              iv_rate TYPE ty_rate
+              iv_day TYPE ty_day
+    RETURNING VALUE(rv_status) TYPE ty_status.
+  ticket_price
+    IMPORTING iv_zone TYPE ty_zone
+              iv_rate TYPE ty_rate
+              iv_day TYPE ty_day
+              iv_member TYPE ty_flag
+    RETURNING VALUE(rv_price) TYPE ty_amount.
+- Do not add other public methods.
+
+# 5. Business rules
+1. An area code is known if it is IN, OU, SA or AL. Compare the codes exactly.
+   Do not convert the codes to upper case.
+2. A rate code is known if it is A, C or S.
+3. A day key is known if it is MO, TU, WE, TH, FR, SA or SU.
+4. check_booking checks the area code, then the rate code, then the day key.
+   It returns the status of the first check that fails. If all three checks
+   pass, it returns OK.
+5. ticket_price returns 0 if check_booking does not return OK.
+6. Else the price is the base price of the area and the rate, plus the weekend
+   surcharge, minus the member discount.
+7. The base price in euro:
+   IN: A 10.00, C 5.00, S 7.50
+   OU: A 7.50, C 3.75, S 5.00
+   SA: A 15.00, C 7.50, S 11.25
+   AL: A 20.00, C 10.00, S 15.00
+8. The weekend surcharge is 2.50. It applies when the day key is SA or SU.
+9. The member discount is 20 per cent. It applies when iv_member is X. Apply
+   the discount to the sum of the base price and the surcharge.
+
+# 6. Constraints
+- Release target: SAP_BASIS 816 (ABAP Platform 2025).
+- Coding standards: Clean ABAP. Method length below 40 statements. No global
+  variables. No comment that restates the code.
+- Out of scope: do not change or create other objects.
+
+# 7. Acceptance
+- The class is active and has no syntax error.
+- The hidden tests pass.
+- Write your own ABAP Unit tests for the class.