运行 ID: 6169

Main.cc: In function ‘int main()’:
Main.cc:6:16: error: conflicting declaration ‘double a [11]’
     double a[11]={28.9,45.6,35,27.8,56,32.7,78,86.2,43,65};
                ^
Main.cc:4:12: note: previous declaration as ‘double a’
     double a=0;
            ^
Main.cc:10:19: error: invalid types ‘double[int]’ for array subscript
         a=a+(b*a[i])
                   ^