View Compilation Error

0_0_1354142_17859.cpp: In function `int main()':
0_0_1354142_17859.cpp:10: error: `INT64' undeclared (first use this function)
0_0_1354142_17859.cpp:10: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1354142_17859.cpp:10: error: expected `;' before "max"
0_0_1354142_17859.cpp:14: error: overloaded function with no contextual type information
0_0_1354142_17859.cpp:14: error: `csum' undeclared (first use this function)
0_0_1354142_17859.cpp:34: error: overloaded function with no contextual type information