View Compilation Error

0_0_13253857_18536.cpp: In function 'int main()':
0_0_13253857_18536.cpp:44:16: error: 'bit' was not declared in this scope
         memset(bit,0,sizeof(bit));
                ^
0_0_13253857_18536.cpp:49:24: error: 'add' was not declared in this scope
             add(i,value);
                        ^