Compilare: user.cpp: In function ‘int main()’: user.cpp:77:19: warning: unused variable ‘t’ [-Wunused-variable] int x,y,r,t,l1,c1,l2,c2; ^ user.cpp:71:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gheizere.in","r",stdin); ^ user.cpp:72:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gheizere.out","w",stdout); ^ user.cpp:73:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&p); ^ user.cpp:74:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&v,&e); ^ user.cpp:78:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d",&x,&y,&r,&G[k].t,&G[k].d); ^ user.cpp: In function ‘void lee(int, int)’: user.cpp:45:18: warning: ‘yy’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(xx==e && yy==1) ^ user.cpp:45:9: warning: ‘xx’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(xx==e && yy==1) ^