/in/foo.cc: In function 'int main()':
/in/foo.cc:38:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    if(du[i]%2==1)
    ^~
/in/foo.cc:41:7: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
       k=0;
       ^
/in/foo.cc:44:7: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
       for(i=1;i<=k;i++)
       ^~~
/in/foo.cc:46:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
         cout<<endl;
         ^~~~

FileNotFoundError('input/fence9.in',)