/in/foo.cc: In function 'int main()':
/in/foo.cc:44:65: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'bool*' [-Wformat=]
  for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) scanf("%d",&a[i][j]);
                                                                 ^