View Compilation Error

0_0_37818390_6791.cpp: In function 'long long int dg(int, int, int)':
0_0_37818390_6791.cpp:39:1: error: a function-definition is not allowed here before '{' token
 {
 ^
0_0_37818390_6791.cpp:53:1: error: expected '}' at end of input
 }
 ^