View Compilation Error

0_0_35937489_692.cpp: In function 'bool WR(std::string*, int, int, int, int)':
0_0_35937489_692.cpp:75:24: error: 'ans' was not declared in this scope
                     if(ans[ik][jk] != ' ') end = jk;
                        ^
0_0_35937489_692.cpp:76:58: error: 'ans' was not declared in this scope
                 for(int jk = 0; jk <= end; jk++) putchar(ans[ik][jk]);
                                                          ^