View Compilation Error

0_0_8352996_861.cpp:4: error: redeclaration of C++ built-in type `long'
0_0_8352996_861.cpp:11: error: `LL' does not name a type
0_0_8352996_861.cpp:68: error: `LL' does not name a type
0_0_8352996_861.cpp:92: error: `LL' does not name a type
0_0_8352996_861.cpp: In function `int main()':
0_0_8352996_861.cpp:112: error: `Calculate' undeclared (first use this function)
0_0_8352996_861.cpp:112: error: (Each undeclared identifier is reported only once for each function it appears in.)