0_0_8527169_19535.c: In function `init':
0_0_8527169_19535.c:8: error: 'for' loop initial declaration used outside C99 mode
0_0_8527169_19535.c: In function `dfs':
0_0_8527169_19535.c:16: error: 'for' loop initial declaration used outside C99 mode
0_0_8527169_19535.c: In function `main':
0_0_8527169_19535.c:52: error: 'for' loop initial declaration used outside C99 mode
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