View Compilation Error

0_0_29473833_11375.cpp:17:1: error: expected initializer before 'ans'
 ans[1][1]=ans[2][2]=1;    
 ^
0_0_29473833_11375.cpp:18:1: error: 'ans' does not name a type
 ans[1][2]=ans[2][1]=0;    
 ^
0_0_29473833_11375.cpp:19:1: error: expected unqualified-id before 'while'
 while(n)    
 ^
0_0_29473833_11375.cpp:25:1: error: expected declaration before '}' token
 }
 ^