Mã chấm: 270207

Main.cc: In function ‘bool ktlt(long long int)’:
Main.cc:10:8: error: ‘t’ was not declared in this scope
     if(t==0){
        ^
Main.cc: In function ‘int main()’:
Main.cc:23:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&l);
     ~~~~~^~~~~~~~~
Main.cc:25:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&n);
         ~~~~~^~~~~~~~~~~