View Compilation Error

0_0_4565622_19448.c: In function `main':
0_0_4565622_19448.c:12: error: 'for' loop initial declaration used outside C99 mode
0_0_4565622_19448.c:18: error: redefinition of 'i'
0_0_4565622_19448.c:12: error: previous definition of 'i' was here
0_0_4565622_19448.c:18: error: 'for' loop initial declaration used outside C99 mode