View Compilation Error

0_0_4223898_20042.c: In function `main':
0_0_4223898_20042.c:18: error: 'for' loop initial declaration used outside C99 mode
0_0_4223898_20042.c:20: error: 'for' loop initial declaration used outside C99 mode
0_0_4223898_20042.c:27: error: redefinition of 'i'
0_0_4223898_20042.c:18: error: previous definition of 'i' was here
0_0_4223898_20042.c:27: error: 'for' loop initial declaration used outside C99 mode