View Compilation Error

0_0_22109496_18419.cpp:16:9: error: stray '\243' in program
         long long ans＝0;
         ^
0_0_22109496_18419.cpp:16:9: error: stray '\275' in program
0_0_22109496_18419.cpp: In function 'int main(int, const char**)':
0_0_22109496_18419.cpp:16:24: error: expected initializer before numeric constant
         long long ans＝0;
                        ^
0_0_22109496_18419.cpp:26:13: error: 'ans' was not declared in this scope
             ans=(r-1)/2+1;
             ^
0_0_22109496_18419.cpp:27:13: error: 'ans' was not declared in this scope
             ans=(r-l)/2+1;
             ^