View Compilation Error

0_0_34091916_24080.cpp: In function 'int main()':
0_0_34091916_24080.cpp:9:7: error: redeclaration of 'int flag'
   int flag = 1;
       ^
0_0_34091916_24080.cpp:6:6: note: 'int flag' previously declared here
  int flag = 1;
      ^