View Compilation Error

0_0_13785696_1741.cpp: In function 'int main()':
0_0_13785696_1741.cpp:37:42: error: 'w' was not declared in this scope
      - i * (m - i + 1) - j * (n - j + 1);w
                                          ^
0_0_13785696_1741.cpp:40:45: error: 'tp' was not declared in this scope
     for(int o = 1; o <= k; ++o) p *= (1.0 - tp);
                                             ^