View Compilation Error

420890_0_0_26006.c:1:20: iostream: No such file or directory
420890_0_0_26006.c:2: error: syntax error before "namespace"
420890_0_0_26006.c: In function `main':
420890_0_0_26006.c:6: error: `cin' undeclared (first use in this function)
420890_0_0_26006.c:6: error: (Each undeclared identifier is reported only once
420890_0_0_26006.c:6: error: for each function it appears in.)
420890_0_0_26006.c:6: error: syntax error before '/' token
420890_0_0_26006.c: At top level:
420890_0_0_26006.c:10: error: syntax error before string constant