Compilare: user.cpp: In function ‘void fil(int, int)’: user.cpp:72:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, x_aa, y_aa; ^ user.cpp: In function ‘int main()’: user.cpp:92:15: warning: unused variable ‘s’ [-Wunused-variable] int i, j, s, t, d, c, k, ma, cord1, cord2, aire_max; ^ user.cpp:92:27: warning: unused variable ‘k’ [-Wunused-variable] int i, j, s, t, d, c, k, ma, cord1, cord2, aire_max; ^ user.cpp:88:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ferma3.in","r",stdin); ^ user.cpp:89:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ferma3.out","w",stdout); ^ user.cpp:97:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&c); ^ user.cpp:98:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%*c",&n,&m); ^ user.cpp:101:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",r); ^ user.cpp:145:48: warning: ‘caracter’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d %d\n%c",cord1,cord2,caracter); ^