View Compilation Error

0_0_20742844_14214.cpp: In function 'int main()':
0_0_20742844_14214.cpp:67:16: error: expected ',' before '.' token
             ans.push_back(-1);
                ^
0_0_20742844_14214.cpp:67:16: error: expected identifier before '.' token
0_0_20742844_14214.cpp:67:30: error: expected ']' before ';' token
             ans.push_back(-1);
                              ^
0_0_20742844_14214.cpp: In lambda function:
0_0_20742844_14214.cpp:67:30: error: expected '{' before ';' token
0_0_20742844_14214.cpp: In function 'int main()':
0_0_20742844_14214.cpp:69:9: error: expected primary-expression before ']' token
         ]
         ^
0_0_20742844_14214.cpp:71:36: error: 'i' was not declared in this scope
         for (int i = ans.size()-1; i >= 0; i--) {
                                    ^