View Compilation Error

0_0_10248670_1821.cpp:7: error: redeclaration of C++ built-in type `long'
0_0_10248670_1821.cpp:9: error: `ll' does not name a type
0_0_10248670_1821.cpp: In function `int main()':
0_0_10248670_1821.cpp:23: error: `dp' undeclared (first use this function)
0_0_10248670_1821.cpp:23: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10248670_1821.cpp:43: error: `ll' undeclared (first use this function)
0_0_10248670_1821.cpp:43: error: expected `;' before "ans"
0_0_10248670_1821.cpp:45: error: `ans' undeclared (first use this function)