/in/foo.c:3:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable:4996)
 
/in/foo.c: In function 'main':
/in/foo.c:21:16: warning: implicit declaration of function 'abs' [-Wimplicit-function-declaration]
   printf("%d", abs(sum));
                ^~~
/in/foo.c:6:32: warning: unused variable 'sum2' [-Wunused-variable]
  int b, c, i, j, n, m, q, sum, sum2;
                                ^~~~
/in/foo.c:6:24: warning: unused variable 'q' [-Wunused-variable]
  int b, c, i, j, n, m, q, sum, sum2;
                        ^
/in/foo.c:6:9: warning: unused variable 'c' [-Wunused-variable]
  int b, c, i, j, n, m, q, sum, sum2;
         ^