View Compilation Error

626121_0_0_12628.cpp: In function `int main()':
626121_0_0_12628.cpp:37: error: `i' undeclared (first use this function)
626121_0_0_12628.cpp:37: error: (Each undeclared identifier is reported only once for each function it appears in.)
626121_0_0_12628.cpp:37: error: expected `;' before "for"
626121_0_0_12628.cpp:37: error: `k' undeclared (first use this function)
626121_0_0_12628.cpp:37: error: expected `;' before ')' token