Compilare: user.cpp: In function ‘int main()’: user.cpp:14:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,cate=0,s1=0,s2=0,min=2000000; ^ user.cpp:14:15: warning: unused variable ‘cate’ [-Wunused-variable] int n,i,j,cate=0,s1=0,s2=0,min=2000000; ^ user.cpp:14:22: warning: unused variable ‘s1’ [-Wunused-variable] int n,i,j,cate=0,s1=0,s2=0,min=2000000; ^ user.cpp:14:27: warning: unused variable ‘s2’ [-Wunused-variable] int n,i,j,cate=0,s1=0,s2=0,min=2000000; ^ user.cpp:12:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("leduri.in","r",stdin); ^ user.cpp:13:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("leduri.out","w",stdout); ^ user.cpp:15:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:17:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v1[i]); ^ user.cpp:19:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v2[i]); ^