foo.c: In function 'main':
foo.c:9:17: warning: format '%lf' expects argument of type 'double *', but argument 3 has type 'float *' [-Wformat=]
     scanf("%d %lf",&n,&m);
               ~~^     ~~
               %f
foo.c: In function 'score':
foo.c:21:19: warning: format '%lf' expects argument of type 'double *', but argument 2 has type 'float *' [-Wformat=]
          scanf("%lf",&a[h][l]);
                 ~~^  ~~~~~~~~
                 %f
foo.c: In function 'main':
foo.c:9:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %lf",&n,&m);
     ^~~~~~~~~~~~~~~~~~~~~
foo.c: In function 'score':
foo.c:21:10: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
          scanf("%lf",&a[h][l]);
          ^~~~~~~~~~~~~~~~~~~~~

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