View Compilation Error

0_0_39076167_27067.cpp:6:13: error: 'V' was not declared in this scope
    6 | int n, m, s[V];
      |             ^
0_0_39076167_27067.cpp: In function 'int& S(int, int)':
0_0_39076167_27067.cpp:9:12: error: 's' was not declared in this scope
    9 |     return s[x*(m+2)+y];
      |            ^