View Compilation Error

0_0_25454455_25610.cpp: In function 'int main()':
0_0_25454455_25610.cpp:15:25: error: request for member 'length' in 's', which is of non-class type 'char [20]'
         if(s[5]=='.'||s.length()==5)
                         ^
0_0_25454455_25610.cpp:18:22: error: request for member 'length' in 's', which is of non-class type 'char [20]'
                 if(s.length()==8)
                      ^
0_0_25454455_25610.cpp:23:25: error: request for member 'length' in 's', which is of non-class type 'char [20]'
         if(s[6]=='.'||s.length()==6)
                         ^
0_0_25454455_25610.cpp:26:22: error: request for member 'length' in 's', which is of non-class type 'char [20]'
                 if(s.length()==9)
                      ^