View Compilation Error

0_0_1479290_894.c:1:19: iostream: No such file or directory
0_0_1479290_894.c:2:14: set: No such file or directory
0_0_1479290_894.c:3:17: string: No such file or directory
0_0_1479290_894.c:4: error: syntax error before "namespace"
0_0_1479290_894.c: In function `main':
0_0_1479290_894.c:23: error: `set' undeclared (first use in this function)
0_0_1479290_894.c:23: error: (Each undeclared identifier is reported only once
0_0_1479290_894.c:23: error: for each function it appears in.)
0_0_1479290_894.c:23: error: `string' undeclared (first use in this function)
0_0_1479290_894.c:23: error: `ans' undeclared (first use in this function)
0_0_1479290_894.c:24: error: syntax error before ':' token
0_0_1479290_894.c:25: error: `EOF' undeclared (first use in this function)
0_0_1479290_894.c:32: error: `sts' undeclared (first use in this function)
0_0_1479290_894.c:35: error: 'for' loop initial declaration used outside C99 mode