View Compilation Error

228193_0_21901.cpp:1: error: expected constructor, destructor, or type conversion before '<' token
228193_0_21901.cpp:1: error: expected `,' or `;' before '<' token
228193_0_21901.cpp: In function `int main()':
228193_0_21901.cpp:102: error: `scanf' undeclared (first use this function)
228193_0_21901.cpp:102: error: (Each undeclared identifier is reported only once for each function it appears in.)
228193_0_21901.cpp:102: error: `EOF' undeclared (first use this function)
228193_0_21901.cpp:107: error: `sqrt' undeclared (first use this function)
228193_0_21901.cpp:108: error: `printf' undeclared (first use this function)