Accepted
foo.cc: In function 'int main()':
foo.cc:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
13 | scanf("%d%d",&m,&n);
| ~~~~~^~~~~~~~~~~~~~
foo.cc:16:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
16 | scanf("%d%d",&w[i],&c[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~
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