View Compilation Error

511426_0_0_8778.cpp:5: error: `Int' does not name a type
511426_0_0_8778.cpp:8: error: integer constant is too large for "long" type
511426_0_0_8778.cpp: In function `int main()':
511426_0_0_8778.cpp:22: error: `n' undeclared (first use this function)
511426_0_0_8778.cpp:22: error: (Each undeclared identifier is reported only once for each function it appears in.)
511426_0_0_8778.cpp:25: error: `MaxSubsequenceSum' undeclared (first use this function)