View Compilation Error

0_0_7194288_2613.c:1:20: iostream: No such file or directory
0_0_7194288_2613.c:2:15: set: No such file or directory
0_0_7194288_2613.c:3:18: string: No such file or directory
0_0_7194288_2613.c:4: error: syntax error before "namespace"
0_0_7194288_2613.c: In function `main':
0_0_7194288_2613.c:10: error: `set' undeclared (first use in this function)
0_0_7194288_2613.c:10: error: (Each undeclared identifier is reported only once
0_0_7194288_2613.c:10: error: for each function it appears in.)
0_0_7194288_2613.c:10: error: `string' undeclared (first use in this function)
0_0_7194288_2613.c:10: error: `st' undeclared (first use in this function)
0_0_7194288_2613.c:24: error: syntax error before '/' token
0_0_7194288_2613.c:31: error: `cout' undeclared (first use in this function)
0_0_7194288_2613.c:31: error: `endl' undeclared (first use in this function)