View Compilation Error

0_0_5305989_18444.c:2:16: cmath: No such file or directory
0_0_5305989_18444.c:3:19: iostream: No such file or directory
0_0_5305989_18444.c:4: error: syntax error before "namespace"
0_0_5305989_18444.c: In function `main':
0_0_5305989_18444.c:11: error: `cin' undeclared (first use in this function)
0_0_5305989_18444.c:11: error: (Each undeclared identifier is reported only once
0_0_5305989_18444.c:11: error: for each function it appears in.)
0_0_5305989_18444.c:16: error: `cout' undeclared (first use in this function)
0_0_5305989_18444.c:16: error: `endl' undeclared (first use in this function)
0_0_5305989_18444.c:21: error: syntax error before '/' token