Compilare: user.cpp: In function ‘void citire_lee()’: user.cpp:71:211: warning: operation on ‘a[(v.vulpe::x + -1)][(v.vulpe::y + 1)]’ may be undefined [-Wsequence-point] case 2: a[v.x][v.y]=a[v.x-2][v.y]=a[v.x-1][v.y]=a[v.x-1][v.y-1]=a[v.x-1][v.y+1]=a[v.x][v.y-1]=a[v.x][v.y-2]=a[v.x][v.y+1]=a[v.x][v.y+2]=a[v.x+1][v.y]=a[v.x+2][v.y]=a[v.x-1][v.y+1]=a[v.x+1][v.y+1]=-1; break; ^ user.cpp:61:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &n, &m); ^ user.cpp:62:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &xc, &yc); ^ user.cpp:63:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &k); ^ user.cpp:66:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d\n", &v.x, &v.y, &v.r); ^ user.cpp:74:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &g); ^ user.cpp:77:59: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d\n", &st.x, &st.y, &sf.x, &sf.y); ^ user.cpp: In function ‘int main()’: user.cpp:85:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cartite.in", "r", stdin); ^ user.cpp:86:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cartite.out", "w", stdout); ^ user.cpp:88:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &p); ^