View Compilation Error

0_0_10668293_11459.c:1:20: iostream: No such file or directory
0_0_10668293_11459.c:2:19: cstring: No such file or directory
0_0_10668293_11459.c:3: error: syntax error before "namespace"
0_0_10668293_11459.c: In function `main':
0_0_10668293_11459.c:6: error: `string' undeclared (first use in this function)
0_0_10668293_11459.c:6: error: (Each undeclared identifier is reported only once
0_0_10668293_11459.c:6: error: for each function it appears in.)
0_0_10668293_11459.c:6: error: syntax error before "a"
0_0_10668293_11459.c:7: error: `cin' undeclared (first use in this function)
0_0_10668293_11459.c:7: error: `a' undeclared (first use in this function)
0_0_10668293_11459.c:7: error: `b' undeclared (first use in this function)
0_0_10668293_11459.c:9: error: syntax error before '/' token