Hello Codeforces, I came across an interesting error which I am not able to understand as to why this is happening?

https://codeforces.net/contest/1950/submission/255101766 (This solution did not get accepted but gave runtime error) https://codeforces.net/contest/1950/submission/255101528 (This solution got accepted)

Note there is very little difference between the two

In the first solution I have initialized vector as : vector<vector<int>>dp(n,vector<int>((1<<n),-1));

In the second solution I have initialized vector as : vector<vector<int>>dp((1<<n),vector<int>(n,-1));

I really don't understand what is causing this error. Any help would be appreciated. Thank you !