View Compilation Error

0_0_37428526_8533.cpp: In function 'int main()':
0_0_37428526_8533.cpp:3:2: error: 'undefined' was not declared in this scope
 {undefined
  ^
0_0_37428526_8533.cpp:7:1: error: 'cows' was not declared in this scope
 cows[i] = cows[i-1] + cows[i-3];
 ^
0_0_37428526_8533.cpp:10:1: error: expected ';' before 'if'
 if(n == 0)
 ^
0_0_37428526_8533.cpp:12:16: error: 'cows' was not declared in this scope
 printf("%d\n", cows[n]);
                ^