1### Compilation failed:
2
3error: 1: array size must be an integer
4int a[1, 2];
5 ^^^^
6error: 2: array size must be an integer
7int b[(3, 4)];
8 ^^^^^^
9error: 3: 'const' variable initializer must be a constant expression
10const int d = (5, 6);
11 ^^^^^^
123 errors
13