foo.c: In function 'main':
foo.c:10:9: error: variable-sized object may not be initialized
   10 |         int arr[n][2]={0};
      |         ^~~
foo.c:23:29: warning: implicit declaration of function 'abs' [-Wimplicit-function-declaration]
   23 |                         sum=abs(arr[0][0]-X)+abs(arr[0][1]-Y);
      |                             ^~~
foo.c:7:1: note: include '<stdlib.h>' or provide a declaration of 'abs'
    6 | #include<math.h>
  +++ |+#include <stdlib.h>
    7 | int main(){

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