View Compilation Error

0_0_38703828_24722.cpp: In function 'int main()':
0_0_38703828_24722.cpp:11:25: error: 'k' was not declared in this scope
   11 |                         k=a-b;
      |                         ^
0_0_38703828_24722.cpp:15:25: error: 'k' was not declared in this scope
   15 |                         k=b-a;
      |                         ^
0_0_38703828_24722.cpp:18:27: error: 'k' was not declared in this scope
   18 |                 if ((int)(k * (1 + sqrt(5)) / 2) == minx)
      |                           ^