View Compilation Error

0_0_37626920_20994.cpp:15:5: error: stray '\243' in program
     int res = 0；
     ^
0_0_37626920_20994.cpp:15:5: error: stray '\273' in program
0_0_37626920_20994.cpp: In function 'int main()':
0_0_37626920_20994.cpp:16:5: error: expected ',' or ';' before 'for'
     for(int i = st;i<=n;i++)
     ^
0_0_37626920_20994.cpp:16:20: error: 'i' was not declared in this scope
     for(int i = st;i<=n;i++)
                    ^