View Compilation Error

0_0_10540285_11802.c:4:21: algorithm: No such file or directory
0_0_10540285_11802.c:5:16: queue: No such file or directory
0_0_10540285_11802.c:7: error: syntax error before "namespace"
0_0_10540285_11802.c: In function `spfa':
0_0_10540285_11802.c:27: error: `queue' undeclared (first use in this function)
0_0_10540285_11802.c:27: error: (Each undeclared identifier is reported only once
0_0_10540285_11802.c:27: error: for each function it appears in.)
0_0_10540285_11802.c:27: error: syntax error before "int"
0_0_10540285_11802.c:28: error: `Q' undeclared (first use in this function)