View Compilation Error

571827_0_0_3944.cpp: In function `int main()':
571827_0_0_3944.cpp:8: error: conflicting declaration 'bool a'
571827_0_0_3944.cpp:6: error: 'a' has a previous declaration as `int a[50]'
571827_0_0_3944.cpp:8: error: declaration of `bool a'
571827_0_0_3944.cpp:6: error: conflicts with previous declaration `int a[50]'
571827_0_0_3944.cpp:10: error: expected `,' or `;' before "while"