View Compilation Error

0_0_38504645_12639.cpp: In function 'void solve()':
0_0_38504645_12639.cpp:31:15: error: expected unqualified-id before '[' token
     for (auto [k, v] : mp) {
               ^
0_0_38504645_12639.cpp:31:15: error: expected ';' before '[' token
0_0_38504645_12639.cpp:31:16: error: 'k' was not declared in this scope
     for (auto [k, v] : mp) {
                ^
0_0_38504645_12639.cpp:31:19: error: 'v' was not declared in this scope
     for (auto [k, v] : mp) {
                   ^
0_0_38504645_12639.cpp: In lambda function:
0_0_38504645_12639.cpp:31:22: error: expected '{' before ':' token
     for (auto [k, v] : mp) {
                      ^
0_0_38504645_12639.cpp: In function 'void solve()':
0_0_38504645_12639.cpp:31:22: error: expected ';' before ':' token
0_0_38504645_12639.cpp:31:22: error: expected primary-expression before ':' token
0_0_38504645_12639.cpp:31:22: error: expected ')' before ':' token
0_0_38504645_12639.cpp:31:22: error: expected primary-expression before ':' token