/in/foo.c:3:27: error: expected ';', ',' or ')' before 'm'
    3 | int check_in(int M, int[] m, int target){
      |                           ^
/in/foo.c: In function 'main':
/in/foo.c:36:17: warning: implicit declaration of function 'check_in' [-Wimplicit-function-declaration]
   36 |             if (check_in(M, m, i)) dp[i] = 1;
      |                 ^~~~~~~~