View Compilation Error

0_0_7213481_12807.c: In function `main':
0_0_7213481_12807.c:6: error: 'for' loop initial declaration used outside C99 mode
0_0_7213481_12807.c:13: error: 'for' loop initial declaration used outside C99 mode
0_0_7213481_12807.c:30: error: syntax error before '/' token