View Compilation Error

0_0_4204426_4785.c: In function `main':
0_0_4204426_4785.c:23: error: 'for' loop initial declaration used outside C99 mode
0_0_4204426_4785.c:28: error: redefinition of 'i'
0_0_4204426_4785.c:23: error: previous definition of 'i' was here
0_0_4204426_4785.c:28: error: 'for' loop initial declaration used outside C99 mode