Compilare: user.cpp: In function ‘int main()’: user.cpp:15:26: warning: unused variable ‘dir’ [-Wunused-variable] int n, m, k, finish, dir = 0, cat = 0, aux, xf, yf; ^ user.cpp:12:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zumzi.in", "r", stdin); ^ user.cpp:13:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zumzi.out", "w", stdout); ^ user.cpp:18:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &n, &m, &k, &finish); ^ user.cpp:20:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &aux); ^ user.cpp:121:35: warning: ‘yf’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%lld\n", dp[xf][yf][k]); ^ user.cpp:121:35: warning: ‘xf’ may be used uninitialized in this function [-Wmaybe-uninitialized]