Compilare: user.cpp: In function ‘int main()’: user.cpp:10:15: warning: unused variable ‘x’ [-Wunused-variable] int t,n,m,x; ^ user.cpp:8:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("prietenie3.in","r",stdin); ^ user.cpp:11:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:16:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:17:69: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1;i <= n;++i) scanf("%d",a+i),mn = min(mn,a[i]); ^ user.cpp:18:69: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1;i <= m;++i) scanf("%d",b+i),mx = max(mx,b[i]); ^