i learn vector. but have mistakes. i dont know where

UndefinedBehaviorSanitizer:DEADLYSIGNAL
==1==ERROR: UndefinedBehaviorSanitizer: SEGV on unknown address 0x000002ab1000 (pc 0x0000004256b0 bp 0x000002ab0ff8 sp 0x7ffe65674d90 T1)
==1==The signal is caused by a READ memory access.
==1==WARNING: invalid path to external symbolizer!
==1==WARNING: Failed to use and restart external symbolizer!
#include
#include
using namespace std;

vector pipe_fix(const vector& nums) {
//убрать повторения
vector nums1 = nums;

for ( vector::iterator i = nums1.begin(); i != nums1.end(); ++i)

for ( vector<int>::iterator j = i + 1;      j != nums1.end();  ++j)
  if ( *i == *j) {  nums1.erase(j); --j;  }

//и отсортировать
vector nums2(nums1.size()); // создаем новый вектор, там все будет отсортировано
int min = nums1[0];
vector::iterator it_min;
vector::iterator i = nums1.begin();
for ( ; i != nums1.end(); ++i)
{
for ( vector::iterator j = i+1; j != nums1.end() & i != j; ++j)
{
if ( *i < *j & *i <= min) { min = *i; it_min = i;}
if ( *i > *j & *j <= min) { min = *j; it_min = j; }
}
nums2.push_back(min);
nums1.erase(it_min);
}

nums2.push_back( *(nums.begin() ) );// в конец вектора добавляем оставшийся элемент - самый большой

//далее отсортирован и нет повторений
vector n;
n.push_back(nums2[0]);
for ( int q = 0; nums2[0] + q != *(nums2.end() - 1); ++q)
n.push_back(nums2[0] + q);

n.push_back( *(nums2.end() - 1 ));
return n;
}

That's not how vectors work. Read the documentation or make a search about this. Also, please format your code as explained there, or it's very discomfortable to read. See there: https://docs.codewars.com/training/troubleshooting/#post-discourse

id like to ask you again to read how to use code blocks. Did you read the link on code formatting I posted in one of your previous questions? here it is, once again: https://docs.codewars.com/references/markdown#code-block

The line you show has a syntax error and unmatched parentheses.

Write a function that checks if a given string (case insensitive)

Print the input when some test case fails, so you can debug your code.

Please use code blocks when posting code: https://docs.codewars.com/references/markdown#code-block

About your problem: please read description once again, carefully, and check if your solution conforms to all requirements. You can also ceck what input causes your solution to fail (see how: https://docs.codewars.com/training/troubleshooting#print-input), and recreate the failing tet in your local IDE, and debug through it.

Mark your post as having spoiler content next time, read this: https://docs.codewars.com/training/troubleshooting/#post-discourse

O! thank you so much!!!!!!