View Compilation Error

0_0_19931442_3942.cpp:23:9: error: stray '\243' in program
         for(int k=1;k<=n／2;k++)
         ^
0_0_19931442_3942.cpp:23:9: error: stray '\257' in program
0_0_19931442_3942.cpp: In function 'int main()':
0_0_19931442_3942.cpp:23:27: error: expected ';' before numeric constant
         for(int k=1;k<=n／2;k++)
                           ^
0_0_19931442_3942.cpp:23:28: error: expected ')' before ';' token
         for(int k=1;k<=n／2;k++)
                            ^
0_0_19931442_3942.cpp:23:29: error: 'k' was not declared in this scope
         for(int k=1;k<=n／2;k++)
                             ^