View Compilation Error

0_0_34036038_29482.cpp:22:1: error: stray '\243' in program
 using namepace std；
 ^
0_0_34036038_29482.cpp:22:1: error: stray '\273' in program
0_0_34036038_29482.cpp:22:7: error: expected nested-name-specifier before 'namepace'
 using namepace std；
       ^
0_0_34036038_29482.cpp: In function 'double func(double)':
0_0_34036038_29482.cpp:26:25: error: invalid operands of types 'double' and 'double' to binary 'operator^'
  return 6 * x ^ 7 + 8 * x ^ 6 + 7 * x ^ 3 + 5 * x ^ 2 - y * x;
                         ^
0_0_34036038_29482.cpp: In function 'double solve()':
0_0_34036038_29482.cpp:34:13: error: 'eps' was not declared in this scope
  while (T > eps) {   //eps是终止温度
             ^
0_0_34036038_29482.cpp:39:23: error: 'min' was not declared in this scope
    ans = min(ans, next);
                       ^
0_0_34036038_29482.cpp:39:23: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:64,
                 from 0_0_34036038_29482.cpp:21:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3444:5: note:   'std::min'
     min(initializer_list<_Tp> __l, _Compare __comp)
     ^