foo.cc: In function 'int main()':
foo.cc:9:17: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'float*' [-Wformat=]
    9 |         scanf("%d,%d",&a,&b);
      |                ~^     ~~
      |                 |     |
      |                 int*  float*
      |                %e
foo.cc:9:20: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'float*' [-Wformat=]
    9 |         scanf("%d,%d",&a,&b);
      |                   ~^     ~~
      |                    |     |
      |                    int*  float*
      |                   %e

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