View Compilation Error

0_0_37583693_30399.cpp: In function 'void solve()':
0_0_37583693_30399.cpp:106:16: error: expected unqualified-id before '[' token
     for (auto &[x, y]: arr) {
                ^
0_0_37583693_30399.cpp:106:16: error: expected ';' before '[' token
0_0_37583693_30399.cpp:106:17: error: 'x' was not declared in this scope
     for (auto &[x, y]: arr) {
                 ^
0_0_37583693_30399.cpp:106:20: error: 'y' was not declared in this scope
     for (auto &[x, y]: arr) {
                    ^
0_0_37583693_30399.cpp: In lambda function:
0_0_37583693_30399.cpp:106:22: error: expected '{' before ':' token
     for (auto &[x, y]: arr) {
                      ^
0_0_37583693_30399.cpp: In function 'void solve()':
0_0_37583693_30399.cpp:106:22: error: expected ';' before ':' token
0_0_37583693_30399.cpp:106:22: error: expected primary-expression before ':' token
0_0_37583693_30399.cpp:106:22: error: expected ')' before ':' token
0_0_37583693_30399.cpp:106:22: error: expected primary-expression before ':' token