foo.cc: In function 'int main()':
foo.cc:77:10: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
   77 |  scanf("%d",&M);
      |         ~^  ~~
      |          |  |
      |          |  long long int*
      |          int*
      |         %lld
foo.cc:70:15: warning: unused variable 'j' [-Wunused-variable]
   70 |  static int i,j;
      |               ^
foo.cc:71:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   71 |  scanf("%d",&N);
      |  ~~~~~^~~~~~~~~
foo.cc:73:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   73 |   scanf("%d%d",&U,&V);
      |   ~~~~~^~~~~~~~~~~~~~
foo.cc:77:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   77 |  scanf("%d",&M);
      |  ~~~~~^~~~~~~~~
foo.cc: At global scope:
foo.cc:70:15: warning: 'j' defined but not used [-Wunused-variable]
   70 |  static int i,j;
      |               ^

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