View Compilation Error

GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h: In function `int main()':
GCC/bin/../lib/gcc/mingw32/3.4.2/../../../../include/stdio.h:170: error: too few arguments to function `FILE* freopen(const char*, const char*, FILE*)'
0_0_2910432_28361.cpp:253: error: at this point in file
0_0_2910432_28361.cpp:254: error: expected `;' before "scanf"