View Compilation Error

0_0_31495704_30843.cpp:16:25: error: empty character constant
                 if(s[i==''&&s[i+1]!='')
                         ^
0_0_31495704_30843.cpp:16:37: error: empty character constant
                 if(s[i==''&&s[i+1]!='')
                                     ^
0_0_31495704_30843.cpp: In function 'int main()':
0_0_31495704_30843.cpp:8:27: error: 'strlen' was not declared in this scope
         for(n=0;n<strlen(s);n++)
                           ^
0_0_31495704_30843.cpp:10:16: error: 'i' was not declared in this scope
             if(i==0)
                ^
0_0_31495704_30843.cpp:16:39: error: expected ']' before ')' token
                 if(s[i==''&&s[i+1]!='')
                                       ^