View Compilation Error

0_0_11751964_26655.cpp: In function `int main()':
0_0_11751964_26655.cpp:7: error: `std::ios' has not been declared
0_0_11751964_26655.cpp:7: error: `sync_with_stdio' undeclared (first use this function)
0_0_11751964_26655.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11751964_26655.cpp:10: error: `read' undeclared (first use this function)
0_0_11751964_26655.cpp:12: error: `LL' undeclared (first use this function)
0_0_11751964_26655.cpp:12: error: expected `;' before "n"
0_0_11751964_26655.cpp:14: error: `cout' undeclared (first use this function)
0_0_11751964_26655.cpp:15: error: `n' undeclared (first use this function)
0_0_11751964_26655.cpp:21: error: `BigInteger' undeclared (first use this function)
0_0_11751964_26655.cpp:21: error: expected `;' before "N"
0_0_11751964_26655.cpp:22: error: `N' undeclared (first use this function)