View Compilation Error

0_0_39163438_20902.cpp: In function 'int main()':
0_0_39163438_20902.cpp:91:13: error: 'a' was not declared in this scope
   91 |             a[i] = x;
      |             ^
0_0_39163438_20902.cpp:95:18: error: 'a' was not declared in this scope
   95 |             if ( a[i] % 2 == 1) {
      |                  ^