0_0_12191789_12482.cpp:13: error: expected constructor, destructor, or type conversion before "int"
0_0_12191789_12482.cpp:13: error: expected `,' or `;' before "int"
0_0_12191789_12482.cpp: In function `int bfs()':
0_0_12191789_12482.cpp:30: error: `d' undeclared (first use this function)
0_0_12191789_12482.cpp:30: error: (Each undeclared identifier is reported only once for each function it appears in.)
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