View Compilation Error

0_0_2107964_32540.cpp: In function `int main()':
0_0_2107964_32540.cpp:8: error: `i' undeclared (first use this function)
0_0_2107964_32540.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_2107964_32540.cpp:8: error: `j' undeclared (first use this function)
0_0_2107964_32540.cpp:8: error: `k' undeclared (first use this function)
0_0_2107964_32540.cpp:8: error: `w' undeclared (first use this function)