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View Compilation Error

0_0_39601468_20840.cpp: In function 'long long int solve(long long int)':
0_0_39601468_20840.cpp:15:5: error: 'cin' was not declared in this scope
   15 |     cin >> n >> m;
      |     ^~~
0_0_39601468_20840.cpp:16:5: error: 'vector' was not declared in this scope
   16 |     vector<int>du(n + 1, 0);
      |     ^~~~~~
0_0_39601468_20840.cpp:1:13: error: expected primary-expression before 'long'
    1 | #define int long long
      |             ^~~~
0_0_39601468_20840.cpp:16:12: note: in expansion of macro 'int'
   16 |     vector<int>du(n + 1, 0);
      |            ^~~
0_0_39601468_20840.cpp:1:13: error: expected primary-expression before 'long'
    1 | #define int long long
      |             ^~~~
0_0_39601468_20840.cpp:17:19: note: in expansion of macro 'int'
   17 |     vector<vector<int>>eg(n + 1);
      |                   ^~~
0_0_39601468_20840.cpp:20:9: error: 'eg' was not declared in this scope
   20 |         eg[u].emplace_back(v);
      |         ^~
0_0_39601468_20840.cpp:22:9: error: 'du' was not declared in this scope; did you mean 'u'?
   22 |         du[u]++;
      |         ^~
      |         u
0_0_39601468_20840.cpp:26:9: error: 'pair' was not declared in this scope
   26 |         pair<int, int>Max;//一位度数-数量, 二维数量
      |         ^~~~
0_0_39601468_20840.cpp:1:13: error: expected primary-expression before 'long'
    1 | #define int long long
      |             ^~~~
0_0_39601468_20840.cpp:26:14: note: in expansion of macro 'int'
   26 |         pair<int, int>Max;//一位度数-数量, 二维数量
      |              ^~~
0_0_39601468_20840.cpp:1:13: error: expected primary-expression before 'long'
    1 | #define int long long
      |             ^~~~
0_0_39601468_20840.cpp:27:21: note: in expansion of macro 'int'
   27 |         vector<pair<int, int>>dep(n + 1, {0, 0});
      |                     ^~~
0_0_39601468_20840.cpp:27:48: error: expected primary-expression before ')' token
   27 |         vector<pair<int, int>>dep(n + 1, {0, 0});
      |                                                ^
0_0_39601468_20840.cpp:28:53: error: 'pair' does not name a type
   28 |         auto dfs = [&](auto self, int x, int fa) -> pair<int, int> {
      |                                                     ^~~~
0_0_39601468_20840.cpp:28:57: error: expected '{' before '<' token
   28 |         auto dfs = [&](auto self, int x, int fa) -> pair<int, int> {
      |                                                         ^
0_0_39601468_20840.cpp:1:13: error: expected primary-expression before 'long'
    1 | #define int long long
      |             ^~~~
0_0_39601468_20840.cpp:28:58: note: in expansion of macro 'int'
   28 |         auto dfs = [&](auto self, int x, int fa) -> pair<int, int> {
      |                                                          ^~~
0_0_39601468_20840.cpp:40:17: error: 'Max' was not declared in this scope
   40 |         return (Max.first * (ksm(2, m) - 1 + M) % M + Max.second) % M;
      |                 ^~~
0_0_39601468_20840.cpp: In function 'int main()':
0_0_39601468_20840.cpp:46:5: error: 'ios' has not been declared
   46 |     ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
      |     ^~~
0_0_39601468_20840.cpp:46:34: error: 'cin' was not declared in this scope
   46 |     ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
      |                                  ^~~
0_0_39601468_20840.cpp:46:52: error: 'cout' was not declared in this scope
   46 |     ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
      |                                                    ^~~~
0_0_39601468_20840.cpp:50:29: error: 'endl' was not declared in this scope
   50 |         cout << solve(_) << endl;
      |                             ^~~~


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