foo.c: In function 'main':
foo.c:14:6: warning: '<<' in boolean context, did you mean '<' ? [-Wint-in-bool-context]
14 | if(m<<n1)
| ~^~~~
foo.c:6:39: warning: variable 'j' set but not used [-Wunused-but-set-variable]
6 | int a[n],b[n],num=1,sum=0,r,m,n1,i,k,j,num1,num2;
| ^
foo.c:5:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
5 | scanf("%d",&n);
| ^~~~~~~~~~~~~~
foo.c:8:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
8 | scanf("%d%d",&b[i],&a[i]);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
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