View Compilation Error

0_0_36765926_6849.cpp: In function 'int main()':
0_0_36765926_6849.cpp:18:25: error: redeclaration of 'int i'
         int a=0,e=0,i=0,i=0,o=0,u=0;
                         ^
0_0_36765926_6849.cpp:18:21: note: 'int i' previously declared here
         int a=0,e=0,i=0,i=0,o=0,u=0;
                     ^