View Compilation Error

0_0_11110749_21987.c:2:18: vector: No such file or directory
0_0_11110749_21987.c:5: error: syntax error before "namespace"
0_0_11110749_21987.c:7: error: syntax error before '<' token
0_0_11110749_21987.c: In function `getVal':
0_0_11110749_21987.c:14: error: `it' undeclared (first use in this function)
0_0_11110749_21987.c:14: error: (Each undeclared identifier is reported only once
0_0_11110749_21987.c:14: error: for each function it appears in.)
0_0_11110749_21987.c:14: error: `vec' undeclared (first use in this function)
0_0_11110749_21987.c: In function `main':
0_0_11110749_21987.c:25: error: `vec' undeclared (first use in this function)