Luogu P1121 Review: Maximum Sum of Two Circular Subarrays and Circular DP
A review of Luogu P1121, using case analysis and a complementary formulation to turn a circular selection problem into linear DP, with an analysis and fix for…
Luogu P1133 Review: From Linear DP to Cutting the Circle into a Line
A review of Luogu P1133, the Leader's Garden: starting with an incorrect linear DP model, examining the limits of patching circular constraints afterward, and…