View Compilation Error

454197_0_0_9479.cpp: In function `int main()':
454197_0_0_9479.cpp:9: error: `i' undeclared (first use this function)
454197_0_0_9479.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
454197_0_0_9479.cpp:9: error: `j' undeclared (first use this function)