foo.cc: In function 'int A(int, int)':
foo.cc:11:23: warning: 'a' may be used uninitialized [-Wmaybe-uninitialized]
   11 |                 if(a[l]==a[l+k])
      |                    ~~~^
foo.cc:7:13: note: 'a' declared here
    7 |         int a[1000000];int t;
      |             ^
foo.cc:24:16: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
   24 |         return t;
      |                ^
In function 'int A(int, int)',
    inlined from 'int main()' at foo.cc:42:20:
foo.cc:11:23: warning: 'a' may be used uninitialized [-Wmaybe-uninitialized]
   11 |                 if(a[l]==a[l+k])
      |                    ~~~^
foo.cc: In function 'int main()':
foo.cc:7:13: note: 'a' declared here
    7 |         int a[1000000];int t;
      |             ^
foo.cc:42:34: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
   42 |                 cout<<A(l[k],r[k]);
      |                                  ^

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