View Compilation Error

0_0_10658309_9439.c: In function `can':
0_0_10658309_9439.c:12: error: 'for' loop initial declaration used outside C99 mode
0_0_10658309_9439.c: In function `main':
0_0_10658309_9439.c:33: error: syntax error before '/' token
0_0_10658309_9439.c:41: error: syntax error before '/' token
0_0_10658309_9439.c:43: error: syntax error before '/' token
0_0_10658309_9439.c:45: error: syntax error before '/' token