Problem	missingnumber
User	WJR
Submission Time	2026-01-19 12:22:18
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

missingnumber.cpp: In function ‘int main()’:
missingnumber.cpp:10:10: error: ‘x’ was not declared in this scope
10 | cin >> x;
| ^