View Compilation Error

0_0_2241920_20201.c:1:19: iostream: No such file or directory
0_0_2241920_20201.c:2:18: cstring: No such file or directory
0_0_2241920_20201.c:5: error: syntax error before "namespace"
0_0_2241920_20201.c: In function `main':
0_0_2241920_20201.c:17: error: `cout' undeclared (first use in this function)
0_0_2241920_20201.c:17: error: (Each undeclared identifier is reported only once
0_0_2241920_20201.c:17: error: for each function it appears in.)
0_0_2241920_20201.c:17: error: `endl' undeclared (first use in this function)