Compilare: user.cpp: In function ‘void bagalee(int, int, int)’: user.cpp:42:17: warning: unused variable ‘xx’ [-Wunused-variable] int x , y , xx , yy; ^ user.cpp:42:22: warning: unused variable ‘yy’ [-Wunused-variable] int x , y , xx , yy; ^ user.cpp: In function ‘int main()’: user.cpp:111:15: warning: unused variable ‘actcnt’ [-Wunused-variable] int act , actcnt; ^ user.cpp:94:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("robot2.in","r",stdin); ^ user.cpp:95:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("robot2.out","w",stdout); ^ user.cpp:97:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); m = n; ^ user.cpp:99:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i][j]); ^ user.cpp:101:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d", &l0, &c0, &l1, &c1); ^