0_0_37880812_15980.cpp: In function 'void solve()':
0_0_37880812_15980.cpp:76:14: error: expected unqualified-id before '[' token
auto [u, v] = es[i];
^
0_0_37880812_15980.cpp:77:12: error: 'u' was not declared in this scope
du[u]++, du[v]++;
^
0_0_37880812_15980.cpp:77:21: error: 'v' was not declared in this scope
du[u]++, du[v]++;
^
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