Problem	arrayfind
User	Red123
Submission Time	2026-10-11 19:22:43
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

arrayfind.cpp: In function ‘int main()’:
arrayfind.cpp:17:28: error: request for member ‘begin’ in ‘arr’, which is of non-class type ‘long long int [n]’
17 | auto l = upper_bound(arr.begin(), arr.end(), a - 1);
| ^~~~~
arrayfind.cpp:17:41: error: request for member ‘end’ in ‘arr’, which is of non-class type ‘long long int [n]’
17 | auto l = upper_bound(arr.begin(), arr.end(), a - 1);
| ^~~
arrayfind.cpp:21:19: error: ‘u’ was not declared in this scope
21 | int upper = n - u;
| ^