Compilare: main.cpp: In function 'int main()': main.cpp:7:29: warning: unused variable 'j' [-Wunused-variable] int k,n,v[100001],i,sum,j,s; ^ main.cpp:7:31: warning: unused variable 's' [-Wunused-variable] int k,n,v[100001],i,sum,j,s; ^ main.cpp:5:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("grupuri.in","r",stdin); ^ main.cpp:6:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("grupuri.out","w",stdout); ^