View Compilation Error

0_0_7527810_24985.c:1:20: iostream: No such file or directory
0_0_7527810_24985.c:2: error: syntax error before "namespace"
0_0_7527810_24985.c:3: error: syntax error before "isprime"
0_0_7527810_24985.c: In function `isprime':
0_0_7527810_24985.c:4: error: `true' undeclared (first use in this function)
0_0_7527810_24985.c:4: error: (Each undeclared identifier is reported only once
0_0_7527810_24985.c:4: error: for each function it appears in.)
0_0_7527810_24985.c:5: error: `false' undeclared (first use in this function)
0_0_7527810_24985.c: In function `main':
0_0_7527810_24985.c:15: error: `cin' undeclared (first use in this function)
0_0_7527810_24985.c:15: error: `false' undeclared (first use in this function)
0_0_7527810_24985.c:22: error: `cout' undeclared (first use in this function)
0_0_7527810_24985.c:22: error: `endl' undeclared (first use in this function)