View Compilation Error

In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/cassert:43:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:33,
                 from 0_0_36571825_27936.cpp:1:
0_0_36571825_27936.cpp: In function 'int main()':
0_0_36571825_27936.cpp:84:10: error: 'n' was not declared in this scope
   assert(n < 48u);
          ^