View Compilation Error

0_0_38556615_32747.cpp: In function 'int main()':
0_0_38556615_32747.cpp:188:16: error: expected unqualified-id before '[' token
     for (auto &[fa, _]: leader) {
                ^
0_0_38556615_32747.cpp:188:16: error: expected ';' before '[' token
0_0_38556615_32747.cpp:188:17: error: 'fa' was not declared in this scope
     for (auto &[fa, _]: leader) {
                 ^
0_0_38556615_32747.cpp:188:21: error: '_' was not declared in this scope
     for (auto &[fa, _]: leader) {
                     ^
0_0_38556615_32747.cpp: In lambda function:
0_0_38556615_32747.cpp:188:23: error: expected '{' before ':' token
     for (auto &[fa, _]: leader) {
                       ^
0_0_38556615_32747.cpp: In function 'int main()':
0_0_38556615_32747.cpp:188:23: error: expected ';' before ':' token
0_0_38556615_32747.cpp:188:23: error: expected primary-expression before ':' token
0_0_38556615_32747.cpp:188:23: error: expected ')' before ':' token
0_0_38556615_32747.cpp:188:23: error: expected primary-expression before ':' token