View Compilation Error

318245_0_14978.cpp: In function `int main()':
318245_0_14978.cpp:7: error: `_int32' undeclared (first use this function)
318245_0_14978.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
318245_0_14978.cpp:7: error: expected `;' before "sum"
318245_0_14978.cpp:9: error: `sum' undeclared (first use this function)