0_0_6889994_16664.cpp:14: error: redefinition of `int dx[4]'
0_0_6889994_16664.cpp:12: error: `int dx[4]' previously defined here
0_0_6889994_16664.cpp:14: error: redefinition of `int dy[4]'
0_0_6889994_16664.cpp:12: error: `int dy[4]' previously defined here
0_0_6889994_16664.cpp:14: error: redefinition of `int sig[4]'
0_0_6889994_16664.cpp:12: error: `int sig[4]' previously defined here
0_0_6889994_16664.cpp:15: error: redefinition of `char cmds[5]'
0_0_6889994_16664.cpp:13: error: `char cmds[5]' previously defined here
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