Compilare: user.cpp: In function ‘int main()’: user.cpp:26:15: warning: unused variable ‘r’ [-Wunused-variable] long long int r,a,b,m,n,k,x,y,t,i; ^ user.cpp:26:17: warning: unused variable ‘a’ [-Wunused-variable] long long int r,a,b,m,n,k,x,y,t,i; ^ user.cpp:26:19: warning: unused variable ‘b’ [-Wunused-variable] long long int r,a,b,m,n,k,x,y,t,i; ^ user.cpp:24:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "bacterii.in","r",stdin); ^ user.cpp:25:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "bacterii.out","w",stdout); ^