View Compilation Error

0_0_4616501_28350.cpp:8: error: `_int64' does not name a type
0_0_4616501_28350.cpp: In function `void dynamic()':
0_0_4616501_28350.cpp:13: error: `dp' undeclared (first use this function)
0_0_4616501_28350.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_4616501_28350.cpp: In function `int main()':
0_0_4616501_28350.cpp:61: error: `dp' undeclared (first use this function)