foo.c: In function 'main':
foo.c:6:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
6 | scanf("%d%d%d", &m, &n, &p);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:11:4: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
11 | scanf("%d", &A[i][j]);
| ^~~~~~~~~~~~~~~~~~~~~
foo.c:15:4: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
15 | scanf("%d", &B[i][j]);
| ^~~~~~~~~~~~~~~~~~~~~
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