View Compilation Error

925972_0_0_6084.cpp: In function `int main()':
925972_0_0_6084.cpp:11: error: `sum' undeclared (first use this function)
925972_0_0_6084.cpp:11: error: (Each undeclared identifier is reported only once for each function it appears in.)
925972_0_0_6084.cpp:13: error: `B' undeclared (first use this function)
925972_0_0_6084.cpp:14: error: expected primary-expression before '%' token
925972_0_0_6084.cpp:14: error: missing terminating " character
925972_0_0_6084.cpp:15: error: `d' undeclared (first use this function)
925972_0_0_6084.cpp:15: error: expected `;' before '}' token