Need for Help in searching vector matter

[qder12345]

Solved

[coder777]

This is nonsense:
int arraySize = sizeof(input)/sizeof(int);

input is a vector.

Choice == 2
- when data is empty, it do nothing instead of showing error message

That's the correct behavior. You cannot delete non existing data


your indention is not the worst I've ever seen, but it comes close...