bobek.cpp: In function 'int main()':
bobek.cpp:23:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(long long j=0; j<tab.size(); j++)
                            ~^~~~~~~~~~~
bobek.cpp:22:19: warning: unused variable 'nomb' [-Wunused-variable]
         long long nomb=0;
                   ^~~~
bobek.cpp:9:15: warning: unused variable 'pluss' [-Wunused-variable]
     long long pluss=0;
               ^~~~~
bobek.cpp:10:15: warning: unused variable 'moins' [-Wunused-variable]
     long long moins=0;
               ^~~~~
bobek.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld",&n,&m);
     ~~~~~^~~~~~~~~~~~~~~~~~
bobek.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&d);
         ~~~~~^~~~~~~~~~~