foo.cc: In function 'int main()':
foo.cc:6:15: warning: too many arguments for format [-Wformat-extra-args]
    6 |         scanf("&d,&d",a,b);
      |               ^~~~~~~
foo.cc:6:14: warning: 'a' is used uninitialized [-Wuninitialized]
    6 |         scanf("&d,&d",a,b);
      |         ~~~~~^~~~~~~~~~~~~
foo.cc:5:13: note: 'a' was declared here
    5 |         int a,b;
      |             ^
foo.cc:6:14: warning: 'b' is used uninitialized [-Wuninitialized]
    6 |         scanf("&d,&d",a,b);
      |         ~~~~~^~~~~~~~~~~~~
foo.cc:5:15: note: 'b' was declared here
    5 |         int a,b;
      |               ^

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