/in/foo.cc: In function 'int main()':
/in/foo.cc:8:9: warning: variable 'j' set but not used [-Wunused-but-set-variable]
  int i, j, l = inf, c, r, w, n, t, m, cnt;
         ^
/in/foo.cc:8:21: warning: unused variable 'c' [-Wunused-variable]
  int i, j, l = inf, c, r, w, n, t, m, cnt;
                     ^