View Compilation Error

0_0_36210381_27694.cpp:92:13: error: stray '\241' in program
             a[i] = s[i] - ‘a‘ + 1;
             ^
0_0_36210381_27694.cpp:92:13: error: stray '\256' in program
0_0_36210381_27694.cpp:92:13: error: stray '\241' in program
0_0_36210381_27694.cpp:92:13: error: stray '\256' in program
0_0_36210381_27694.cpp: In function 'int main()':
0_0_36210381_27694.cpp:92:29: error: invalid operands of types 'char' and 'int [100010]' to binary 'operator-'
             a[i] = s[i] - ‘a‘ + 1;
                             ^