14451445 SUSTech Online Judge
This problem is in Contest(s) below:
Contest 1120:CS203 2022 Fall Lab 4 Stack/Queue
Contest 1121:CS217 2022 Fall Lab 4 Stack/Queue
Contest 1143:CS203 2023 Fall Lab 4 Stack/Queue
Contest 1099:CS203 2021 Fall Lab 05 Stack + Queue
Contest 1100:CS217 2021 Fall Lab 05 Stack + Queue