0_0_37730288_17774.cpp: In function 'void dfs(int)':
0_0_37730288_17774.cpp:45:15: error: expected unqualified-id before '[' token
auto &[x, i] = st[tp];
^
0_0_37730288_17774.cpp:45:15: error: expected initializer before '[' token
0_0_37730288_17774.cpp:46:13: error: 'i' was not declared in this scope
if (i < to[x].size()) {
^
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