/in/foo.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main(){
 ^~~~
/in/foo.c: In function 'main':
/in/foo.c:9:10: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
  scanf("%d",score[i]);
          ^
/in/foo.c:11:10: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
  for(int j;j<N;j++){
          ^