Problem	coin
User	jw12345
Submission Time	2026-03-08 16:56:48
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

coin.cpp: In function ‘int main()’:
coin.cpp:56:30: error: ‘d’ was not declared in this scope
56 | int u = q.front(); q.pop();d
| ^