Problem	minstack
User	tuongphat2505
Submission Time	2026-03-01 19:21:48
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

minstack.cpp: In function ‘void pop()’:
minstack.cpp:61:30: error: return-statement with a value, in function returning ‘void’ [-fpermissive]
61 | if (st.empty()) return -1;
| ^
minstack.cpp:65:12: error: return-statement with a value, in function returning ‘void’ [-fpermissive]
65 | return popval;
| ^~~~~~