View Compilation Error

0_0_7630773_19483.c: In function `deletetree':
0_0_7630773_19483.c:75: error: syntax error before '/' token
0_0_7630773_19483.c: In function `maketree':
0_0_7630773_19483.c:81: error: 'for' loop initial declaration used outside C99 mode
0_0_7630773_19483.c: In function `main':
0_0_7630773_19483.c:110: error: 'for' loop initial declaration used outside C99 mode
0_0_7630773_19483.c:121: error: syntax error before '/' token
0_0_7630773_19483.c:124: error: syntax error before '/' token
0_0_7630773_19483.c:127: error: syntax error before '/' token