Problem missingnumber
User tonk
Submission Time 2025-12-24 22:51:25
Score 0
Max Time N/A
Max Memory N/A

Compile Error

missingnumber.cpp: In function ‘int main()’:
missingnumber.cpp:15:9: error: ‘seen’ was not declared in this scope
15 | seen[x] = 1;
| ^~~~