foo.cc: In function 'int main()':
foo.cc:10:74: warning: array subscript 16 is above array bounds of 'int [16]' [-Warray-bounds]
   10 |         x=a[1]+a[2]+a[3]+a[4]+a[5]+a[8]+a[9]+a[12]+a[13]+a[14]+a[15]+a[16];
      |                                                                      ~~~~^
foo.cc:4:13: note: while referencing 'a'
    4 |         int a[16];
      |             ^

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