View Compilation Error

0_0_36985829_13773.cpp: In function 'int main()':
0_0_36985829_13773.cpp:8:12: error: conflicting declaration 'int a'
        int a=0;e=0;i=0;o=0;u=0;
            ^
0_0_36985829_13773.cpp:7:13: note: previous declaration as 'char a [n][105]'
        char a[n][105];
             ^
0_0_36985829_13773.cpp:8:16: error: 'e' was not declared in this scope
        int a=0;e=0;i=0;o=0;u=0;
                ^
0_0_36985829_13773.cpp:8:20: error: 'i' was not declared in this scope
        int a=0;e=0;i=0;o=0;u=0;
                    ^
0_0_36985829_13773.cpp:8:24: error: 'o' was not declared in this scope
        int a=0;e=0;i=0;o=0;u=0;
                        ^
0_0_36985829_13773.cpp:8:28: error: 'u' was not declared in this scope
        int a=0;e=0;i=0;o=0;u=0;
                            ^
0_0_36985829_13773.cpp:14:30: error: lvalue required as increment operand
            if(a[x][j]=='a') a++;
                              ^
0_0_36985829_13773.cpp:25:12: error: incompatible types in assignment of 'int' to 'char [n][105]'
           a=0;e=0;i=0;o=0;u=0;
            ^