Run id: 123551

Main.cc: In function 'int main()':
Main.cc:9:8: error: 'x' was not declared in this scope
   for (x = d; x >= 0; x--) {
        ^
Main.cc:4:9: warning: unused variable 'b' [-Wunused-variable]
  int a, b = 0, c, d;
         ^
Main.cc:4:19: warning: unused variable 'd' [-Wunused-variable]
  int a, b = 0, c, d;
                   ^