View Compilation Error

0_0_37966828_16344.cpp: In function 'void solve()':
0_0_37966828_16344.cpp:80:18: error: expected unqualified-id before '[' token
         for(auto [l, r] : s) {
                  ^
0_0_37966828_16344.cpp:80:18: error: expected ';' before '[' token
0_0_37966828_16344.cpp:80:19: error: 'l' was not declared in this scope
         for(auto [l, r] : s) {
                   ^
0_0_37966828_16344.cpp:80:22: error: 'r' was not declared in this scope
         for(auto [l, r] : s) {
                      ^
0_0_37966828_16344.cpp: In lambda function:
0_0_37966828_16344.cpp:80:25: error: expected '{' before ':' token
         for(auto [l, r] : s) {
                         ^
0_0_37966828_16344.cpp: In function 'void solve()':
0_0_37966828_16344.cpp:80:25: error: expected ';' before ':' token
0_0_37966828_16344.cpp:80:25: error: expected primary-expression before ':' token
0_0_37966828_16344.cpp:80:25: error: expected ')' before ':' token
0_0_37966828_16344.cpp:80:25: error: expected primary-expression before ':' token