View Compilation Error

0_0_6609866_10944.c:3:20: iostream: No such file or directory
0_0_6609866_10944.c:6: error: syntax error before "namespace"
0_0_6609866_10944.c: In function `bfs':
0_0_6609866_10944.c:27: error: 'for' loop initial declaration used outside C99 mode
0_0_6609866_10944.c: In function `main':
0_0_6609866_10944.c:51: error: `cin' undeclared (first use in this function)
0_0_6609866_10944.c:51: error: (Each undeclared identifier is reported only once
0_0_6609866_10944.c:51: error: for each function it appears in.)
0_0_6609866_10944.c:55: error: 'for' loop initial declaration used outside C99 mode
0_0_6609866_10944.c:57: error: 'for' loop initial declaration used outside C99 mode