Mã chấm: 271318

Main.cc: In function ‘int main()’:
Main.cc:13:18: warning: comparison with string literal results in unspecified behavior [-Waddress]
         if(a[j]=="1")
                  ^~~
Main.cc:13:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
Main.cc:16:18: warning: comparison with string literal results in unspecified behavior [-Waddress]
         if(a[k]=="0")
                  ^~~
Main.cc:16:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
Main.cc:9:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d",&n,&x,&y);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~
Main.cc:11:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&a[i]);
         ~~~~~^~~~~~~~~~~~