View Compilation Error

0_0_12891931_11242.c:1:20: iostream: No such file or directory
0_0_12891931_11242.c:4:18: string: No such file or directory
0_0_12891931_11242.c:5:17: cmath: No such file or directory
0_0_12891931_11242.c:6: error: syntax error before "namespace"
0_0_12891931_11242.c: In function `main':
0_0_12891931_11242.c:11: error: `cin' undeclared (first use in this function)
0_0_12891931_11242.c:11: error: (Each undeclared identifier is reported only once
0_0_12891931_11242.c:11: error: for each function it appears in.)