Compilare: user.cpp: In function ‘int main()’: user.cpp:7:26: warning: unused variable ‘p1’ [-Wunused-variable] long long n,pe,nr,np,p1,p,i,j; ^ user.cpp:7:33: warning: unused variable ‘j’ [-Wunused-variable] long long n,pe,nr,np,p1,p,i,j; ^ user.cpp:5:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perioada01.in","r",stdin); ^ user.cpp:6:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("perioada01.out","w",stdout); ^ user.cpp:8:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&n); ^ user.cpp:9:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&p); ^ user.cpp:11:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&v1[i]); ^ user.cpp:30:5: warning: ‘pe’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(pe!=n) ^