Compilare: user.cpp: In function ‘int main()’: user.cpp:32:20: warning: unused variable ‘i1’ [-Wunused-variable] int max2=-1300,i1,j1; ^ user.cpp:32:23: warning: unused variable ‘j1’ [-Wunused-variable] int max2=-1300,i1,j1; ^ user.cpp:16:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmlsc.in","r",stdin); ^ user.cpp:17:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmlsc.out","w",stdout); ^ user.cpp:19:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&m); ^ user.cpp:21:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&a[i]); ^ user.cpp:23:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&b[i]); ^ user.cpp:51:20: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] while (i>0 && j>0) ^ user.cpp:51:13: warning: ‘i’ may be used uninitialized in this function [-Wmaybe-uninitialized] while (i>0 && j>0) ^