Compilare: user.cpp: In function ‘int main()’: user.cpp:11:22: warning: unused variable ‘ma’ [-Wunused-variable] int n,i,v[30010],ma=0,p=0,ma1=0,ma2=0,ma3=0,MIN=9999999,mi,y,in,sf; ^ user.cpp:11:49: warning: variable ‘MIN’ set but not used [-Wunused-but-set-variable] int n,i,v[30010],ma=0,p=0,ma1=0,ma2=0,ma3=0,MIN=9999999,mi,y,in,sf; ^ user.cpp:11:64: warning: unused variable ‘y’ [-Wunused-variable] int n,i,v[30010],ma=0,p=0,ma1=0,ma2=0,ma3=0,MIN=9999999,mi,y,in,sf; ^ user.cpp:9:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secv7.in","r",stdin); ^ user.cpp:10:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secv7.out","w",stdout); ^ user.cpp:12:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ 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:26:9: warning: ‘mi’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (mi > xx) mi = xx, in = i - 2, sf = i - 1; ^