foo.c: In function 'main':
foo.c:6:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
6 | scanf("%d%d%d",&m,&n,&p);
| ^~~~~~~~~~~~~~~~~~~~~~~~
foo.c:12:13: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
12 | scanf("%d",&a[i][j]);
| ^~~~~~~~~~~~~~~~~~~~
foo.c:15:13: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
15 | scanf("%d",&b[i][j]);
| ^~~~~~~~~~~~~~~~~~~~
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