Problem	doll_noi
User	lykieutrang
Submission Time	2026-02-02 14:14:14
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

doll_noi.cpp: In function ‘int main()’:
doll_noi.cpp:57:46: error: expected ‘,’ before ‘[’ token
57 | if (vec[i] > 0 && seen.count([vec[i] - 1])) {
| ^
| ,
doll_noi.cpp:57:46: error: expected identifier before ‘[’ token
doll_noi.cpp: In lambda function:
doll_noi.cpp:57:54: error: expected ‘{’ before ‘)’ token
57 | if (vec[i] > 0 && seen.count([vec[i] - 1])) {
| ^
doll_noi.cpp: In function ‘int main()’:
doll_noi.cpp:57:54: error: no matching function for call to ‘std::set<long long int>::count(main()::<lambda()>)’
In file included from /usr/include/c++/9/set:61,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:87,
from doll_noi.cpp:1:
/usr/include/c++/9/bits/stl_set.h:748:7: note: candidate: ‘std::