Compilare: main.cpp: In function 'int main()': main.cpp:30:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("snake.in","r",stdin); ^ main.cpp:31:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&lung); ^ main.cpp:35:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^ main.cpp:41:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("snake.out","w",stdout); ^ main.cpp:39:24: warning: 'pozj1' may be used uninitialized in this function [-Wmaybe-uninitialized] fil1(pozi1,pozj1,1); ^ main.cpp:39:24: warning: 'pozi1' may be used uninitialized in this function [-Wmaybe-uninitialized]