Compilare: user.cpp: In function ‘int main()’: user.cpp:69:13: warning: unused variable ‘x’ [-Wunused-variable] int i,j,x,y,r,tt,dd; ^ user.cpp:69:15: warning: unused variable ‘y’ [-Wunused-variable] int i,j,x,y,r,tt,dd; ^ user.cpp:69:17: warning: unused variable ‘r’ [-Wunused-variable] int i,j,x,y,r,tt,dd; ^ user.cpp:69:19: warning: unused variable ‘tt’ [-Wunused-variable] int i,j,x,y,r,tt,dd; ^ user.cpp:69:22: warning: unused variable ‘dd’ [-Wunused-variable] int i,j,x,y,r,tt,dd; ^ user.cpp:70:38: 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:71:40: 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:72:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d", &N,&M,&P,&l1,&l2); ^ user.cpp:77:73: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d", &g[i].lin,&g[i].col,&g[i].r,&g[i].t,&g[i].d); ^