View Compilation Error

0_0_3270117_23953.c:2: error: syntax error before "namespace"
0_0_3270117_23953.c: In function `main':
0_0_3270117_23953.c:6: error: `cin' undeclared (first use in this function)
0_0_3270117_23953.c:6: error: (Each undeclared identifier is reported only once
0_0_3270117_23953.c:6: error: for each function it appears in.)
0_0_3270117_23953.c:7: error: `cout' undeclared (first use in this function)