0_0_10562271_10840.c:3: error: syntax error before "namespace"
0_0_10562271_10840.c: In function `bfs':
0_0_10562271_10840.c:47: error: 'for' loop initial declaration used outside C99 mode
0_0_10562271_10840.c: In function `ek':
0_0_10562271_10840.c:70: error: 'for' loop initial declaration used outside C99 mode
0_0_10562271_10840.c: In function `main':
0_0_10562271_10840.c:80: error: syntax error before '/' token
0_0_10562271_10840.c:83: error: 'for' loop initial declaration used outside C99 mode
0_0_10562271_10840.c:85: error: redefinition of 'i'
0_0_10562271_10840.c:83: error: previous definition of 'i' was here
0_0_10562271_10840.c:85: error: 'for' loop initial declaration used outside C99 mode
0_0_10562271_10840.c:88: error: redefinition of 'i'
0_0_10562271_10840.c:85: error: previous definition of 'i' was here
0_0_10562271_10840.c:88: error: 'for' loop initial declaration used outside C99 mode
0_0_10562271_10840.c:90: error: 'for' loop initial declaration used outside C99 mode
0_0_10562271_10840.c:99: error: redefinition of 'i'
0_0_10562271_10840.c:88: error: previous definition of 'i' was here
0_0_10562271_10840.c:99: error: 'for' loop initial declaration used outside C99 mode
0_0_10562271_10840.c:101: error: 'for' loop initial declaration used outside C99 mode
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