foo.c: In function 'init':
foo.c:11:1: warning: control reaches end of non-void function [-Wreturn-type]
11 | }
| ^
foo.c: In function 'main':
foo.c:45:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
45 | scanf("%d %d %d",&n,&m,&p);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:49:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
49 | scanf("%d %d",&u,&v);
| ^~~~~~~~~~~~~~~~~~~~
foo.c:55:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
55 | scanf("%d %d",&h,&l);
| ^~~~~~~~~~~~~~~~~~~~
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