View Compilation Error

0_0_37840108_9932.cpp: In function 'void solve()':
0_0_37840108_9932.cpp:82:19: error: expected unqualified-id before '[' token
         for (auto [i,j] : order[val]) {
                   ^
0_0_37840108_9932.cpp:82:19: error: expected ';' before '[' token
0_0_37840108_9932.cpp:82:20: error: 'i' was not declared in this scope
         for (auto [i,j] : order[val]) {
                    ^
0_0_37840108_9932.cpp:82:22: error: 'j' was not declared in this scope
         for (auto [i,j] : order[val]) {
                      ^
0_0_37840108_9932.cpp: In lambda function:
0_0_37840108_9932.cpp:82:25: error: expected '{' before ':' token
         for (auto [i,j] : order[val]) {
                         ^
0_0_37840108_9932.cpp: In function 'void solve()':
0_0_37840108_9932.cpp:82:25: error: expected ';' before ':' token
0_0_37840108_9932.cpp:82:25: error: expected primary-expression before ':' token
0_0_37840108_9932.cpp:82:25: error: expected ')' before ':' token
0_0_37840108_9932.cpp:82:25: error: expected primary-expression before ':' token