View Compilation Error

0_0_37542127_18599.cpp:47:17: error: stray '\241' in program
                 if(s[i][j]==‘o‘){
                 ^
0_0_37542127_18599.cpp:47:17: error: stray '\256' in program
0_0_37542127_18599.cpp:47:17: error: stray '\241' in program
0_0_37542127_18599.cpp:47:17: error: stray '\256' in program
0_0_37542127_18599.cpp: In function 'void cal()':
0_0_37542127_18599.cpp:47:31: error: 'o' was not declared in this scope
                 if(s[i][j]==‘o‘){
                               ^