Mã chấm: 267812

Main.cc: In function ‘int main()’:
Main.cc:8:25: error: invalid operands of types ‘const char [13]’ and ‘int’ to binary ‘operator&’
     scanf("%d %d %d %d "&a,&b,&x,&y);
           ~~~~~~~~~~~~~~^~
Main.cc:10:5: error: expected ‘;’ before ‘return’
     return 0;
     ^~~~~~