View Compilation Error

58864_0_4968.cpp:1: error: expected constructor, destructor, or type conversion before '<' token
58864_0_4968.cpp:1: error: expected `,' or `;' before '<' token
58864_0_4968.cpp:4: error: `main' must return `int'
58864_0_4968.cpp: In function `int main(...)':
58864_0_4968.cpp:8: error: `cin' undeclared (first use this function)
58864_0_4968.cpp:8: error: (Each undeclared identifier is reported only once for each function it appears in.)
58864_0_4968.cpp:13: error: `sqrt' undeclared (first use this function)
58864_0_4968.cpp:16: error: `cout' undeclared (first use this function)
58864_0_4968.cpp:16: error: `endl' undeclared (first use this function)