Compilare: user.cpp: In function ‘int main()’: user.cpp:11:19: warning: unused variable ‘st’ [-Wunused-variable] int n,i,j,l,k,st,dr,mi,lm,nk,lb,ub; ^ user.cpp:11:22: warning: unused variable ‘dr’ [-Wunused-variable] int n,i,j,l,k,st,dr,mi,lm,nk,lb,ub; ^ user.cpp:11:25: warning: unused variable ‘mi’ [-Wunused-variable] int n,i,j,l,k,st,dr,mi,lm,nk,lb,ub; ^ user.cpp:11:28: warning: unused variable ‘lm’ [-Wunused-variable] int n,i,j,l,k,st,dr,mi,lm,nk,lb,ub; ^ user.cpp:9:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("nucleulvaloros2.in","r",stdin); ^ user.cpp:10:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("nucleulvaloros2.out","w",stdout); ^