View Compilation Error

0_0_6260946_17061.cpp:1: error: expected constructor, destructor, or type conversion before '<' token
0_0_6260946_17061.cpp:1: error: expected `,' or `;' before '<' token
0_0_6260946_17061.cpp: In function `void bsearch(int, int)':
0_0_6260946_17061.cpp:42: error: `printf' undeclared (first use this function)
0_0_6260946_17061.cpp:42: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6260946_17061.cpp: In function `int main()':
0_0_6260946_17061.cpp:51: error: `cin' undeclared (first use this function)
0_0_6260946_17061.cpp:53: error: `memset' undeclared (first use this function)
0_0_6260946_17061.cpp:57: error: `scanf' undeclared (first use this function)
0_0_6260946_17061.cpp:68: error: `printf' undeclared (first use this function)