View Compilation Error

0_0_37494782_21647.cpp: In function 'int main()':
0_0_37494782_21647.cpp:32:17: error: expected unqualified-id before '[' token
         for(auto[_,x]:mp) cnt.pb(x);
                 ^
0_0_37494782_21647.cpp:32:17: error: expected ';' before '[' token
0_0_37494782_21647.cpp:32:18: error: '_' was not declared in this scope
         for(auto[_,x]:mp) cnt.pb(x);
                  ^
0_0_37494782_21647.cpp:32:20: error: 'x' was not declared in this scope
         for(auto[_,x]:mp) cnt.pb(x);
                    ^
0_0_37494782_21647.cpp: In lambda function:
0_0_37494782_21647.cpp:32:22: error: expected '{' before ':' token
         for(auto[_,x]:mp) cnt.pb(x);
                      ^
0_0_37494782_21647.cpp: In function 'int main()':
0_0_37494782_21647.cpp:32:22: error: expected ';' before ':' token
0_0_37494782_21647.cpp:32:22: error: expected primary-expression before ':' token
0_0_37494782_21647.cpp:32:22: error: expected ')' before ':' token
0_0_37494782_21647.cpp:32:22: error: expected primary-expression before ':' token