View Compilation Error

0_0_2690798_10072.c:1:20: iostream: No such file or directory
0_0_2690798_10072.c:2: error: syntax error before "namespace"
0_0_2690798_10072.c:4: error: syntax error before "fi"
0_0_2690798_10072.c: In function `count':
0_0_2690798_10072.c:7: error: 'for' loop initial declaration used outside C99 mode
0_0_2690798_10072.c: In function `main':
0_0_2690798_10072.c:15: error: `EOF' undeclared (first use in this function)
0_0_2690798_10072.c:15: error: (Each undeclared identifier is reported only once
0_0_2690798_10072.c:15: error: for each function it appears in.)
0_0_2690798_10072.c:17: error: `__int64' undeclared (first use in this function)
0_0_2690798_10072.c:17: error: syntax error before "sum"
0_0_2690798_10072.c:18: error: 'for' loop initial declaration used outside C99 mode
0_0_2690798_10072.c:20: error: `sum' undeclared (first use in this function)
0_0_2690798_10072.c:24: error: syntax error before '/' token