View Compilation Error

0_0_6120559_18809.c:1:17: vector: No such file or directory
0_0_6120559_18809.c:2:20: algorithm: No such file or directory
0_0_6120559_18809.c:3:19: iostream: No such file or directory
0_0_6120559_18809.c:4: error: syntax error before "namespace"
0_0_6120559_18809.c: In function `main':
0_0_6120559_18809.c:9: error: `cin' undeclared (first use in this function)
0_0_6120559_18809.c:9: error: (Each undeclared identifier is reported only once
0_0_6120559_18809.c:9: error: for each function it appears in.)
0_0_6120559_18809.c:11: error: `vector' undeclared (first use in this function)
0_0_6120559_18809.c:11: error: syntax error before "int"
0_0_6120559_18809.c:14: error: `vec' undeclared (first use in this function)
0_0_6120559_18809.c:20: error: `cout' undeclared (first use in this function)
0_0_6120559_18809.c:21: error: `endl' undeclared (first use in this function)