View Compilation Error

228192_0_22795.cpp:1: error: expected constructor, destructor, or type conversion before '<' token
228192_0_22795.cpp:1: error: expected `,' or `;' before '<' token
228192_0_22795.cpp: In function `int main()':
228192_0_22795.cpp:63: error: `scanf' undeclared (first use this function)
228192_0_22795.cpp:63: error: (Each undeclared identifier is reported only once for each function it appears in.)
228192_0_22795.cpp:63: error: `EOF' undeclared (first use this function)
228192_0_22795.cpp:68: error: `sqrt' undeclared (first use this function)
228192_0_22795.cpp:69: error: `printf' undeclared (first use this function)