0_0_9153951_13039.c:1:19: iostream: No such file or directory
0_0_9153951_13039.c:2:17: cstdio: No such file or directory
0_0_9153951_13039.c:3:16: cmath: No such file or directory
0_0_9153951_13039.c:4: error: syntax error before "namespace"
0_0_9153951_13039.c:6: error: variable-size type declared outside of any function
0_0_9153951_13039.c:7: error: syntax error before "used"
0_0_9153951_13039.c:7: error: variable-size type declared outside of any function
0_0_9153951_13039.c:9: error: syntax error before "dfs"
0_0_9153951_13039.c: In function `dfs':
0_0_9153951_13039.c:12: error: `true' undeclared (first use in this function)
0_0_9153951_13039.c:12: error: (Each undeclared identifier is reported only once
0_0_9153951_13039.c:12: error: for each function it appears in.)
0_0_9153951_13039.c:13: error: 'for' loop initial declaration used outside C99 mode
0_0_9153951_13039.c:21: error: `bool' undeclared (first use in this function)
0_0_9153951_13039.c:21: error: syntax error before "flag"
0_0_9153951_13039.c:22: error: `flag' undeclared (first use in this function)
0_0_9153951_13039.c:28: error: `false' undeclared (first use in this function)
0_0_9153951_13039.c:35: error: syntax error before "flag"
0_0_9153951_13039.c: In function `main':
0_0_9153951_13039.c:52: error: `cin' undeclared (first use in this function)
0_0_9153951_13039.c:55: error: `false' undeclared (first use in this function)
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