0_0_30172811_1440.cpp: In function 'int dfs(int, int, int, int, bool)':
0_0_30172811_1440.cpp:36:18: error: a function-definition is not allowed here before '{' token
int solve(int x) {
^
0_0_30172811_1440.cpp:56:1: error: expected '}' at end of input
}
^
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