View Compilation Error

0_0_9513005_19956.cpp: In function `int main()':
0_0_9513005_19956.cpp:17: error: `EO' undeclared (first use this function)
0_0_9513005_19956.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9513005_19956.cpp:17: error: expected `)' before '{' token
0_0_9513005_19956.cpp:27: error: `t' undeclared (first use this function)
0_0_9513005_19956.cpp:27: error: expected `;' before '{' token