View Compilation Error

0_0_13076082_11099.cpp: In function 'int main()':
0_0_13076082_11099.cpp:35:12: error: 'i' was not declared in this scope
 while(cin>>i>>j)
            ^
0_0_13076082_11099.cpp:35:15: error: 'j' was not declared in this scope
 while(cin>>i>>j)
               ^
0_0_13076082_11099.cpp: At global scope:
0_0_13076082_11099.cpp:41:1: error: expected unqualified-id before 'return'
 return 0;
 ^
0_0_13076082_11099.cpp:42:1: error: expected declaration before '}' token
 }
 ^