View Compilation Error

0_0_34041286_25254.c:1:1: error: unknown type name 'using'
 using namespace std;
 ^
0_0_34041286_25254.c:1:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
 using namespace std;
                 ^
0_0_34041286_25254.c:2:19: fatal error: iostream: No such file or directory
 #include<iostream>
                   ^
compilation terminated.