View Compilation Error

0_0_28506030_18008.cpp: In function 'void solve()':
0_0_28506030_18008.cpp:3:9: error: 'dp' was not declared in this scope
         dp[1][0][0]='1';dp[0][0][0]='0';
         ^
0_0_28506030_18008.cpp:12:63: error: 'BigAddBig' was not declared in this scope
                 BigAddBig(dp[j][i-j],dp[j-1][i-j],dp[j][i-j-1]);
                                                               ^