View Compilation Error

0_0_39406219_19161.cpp: In function 'double dis(double, double, double, double)':
0_0_39406219_19161.cpp:7:21: error: 'pow' was not declared in this scope
    7 |         return sqrt(pow(x1 - x2, 2) + pow(y1 - y2, 2));
      |                     ^~~
0_0_39406219_19161.cpp:7:16: error: 'sqrt' was not declared in this scope
    7 |         return sqrt(pow(x1 - x2, 2) + pow(y1 - y2, 2));
      |                ^~~~