View Compilation Error

0_0_13813889_16790.cpp: In function 'int main()':
0_0_13813889_16790.cpp:9:2: error: 'nbsp' was not declared in this scope
     __int64 a, b, t, ans;
  ^
0_0_13813889_16790.cpp:37:43: error: 'else' without a previous 'if'
             else if (a % 2 == b % 2)ans += 3;
                                           ^
0_0_13813889_16790.cpp:39:43: error: 'else' without a previous 'if'
             else if (a / b >= 2)ans += 4;
                                           ^
0_0_13813889_16790.cpp:41:43: error: 'else' without a previous 'if'
             else {
                                           ^