Compilare: user.cpp: In function ‘int main()’: user.cpp:12:17: warning: unused variable ‘poz1’ [-Wunused-variable] int n,m,t,a,poz1,poz2,cmin,cmax,b,c; ^ user.cpp:12:22: warning: unused variable ‘poz2’ [-Wunused-variable] int n,m,t,a,poz1,poz2,cmin,cmax,b,c; ^ user.cpp:12:27: warning: unused variable ‘cmin’ [-Wunused-variable] int n,m,t,a,poz1,poz2,cmin,cmax,b,c; ^ user.cpp:12:32: warning: unused variable ‘cmax’ [-Wunused-variable] int n,m,t,a,poz1,poz2,cmin,cmax,b,c; ^ user.cpp:10:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("coach.in","r",stdin); ^ user.cpp:11:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("coach.out","w",stdout); ^ user.cpp:13:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&t); ^ user.cpp:15:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ user.cpp:18:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&a,&b,&c); ^