View Compilation Error

0_0_8438503_5199.cpp: In function `int Edmonds_Karp(int, int, int)':
0_0_8438503_5199.cpp:7: error: `queue' undeclared (first use this function)
0_0_8438503_5199.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8438503_5199.cpp:7: error: expected primary-expression before "int"
0_0_8438503_5199.cpp:7: error: expected `;' before "int"
0_0_8438503_5199.cpp:13: error: `q' undeclared (first use this function)