Compilare: user.cpp: In function ‘int main()’: user.cpp:7:35: warning: unused variable ‘j’ [-Wunused-variable] int l=1,c=1,n,ctr=0,i,ctrnr=0,j,cl,cc; ^ user.cpp:9:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rezervatie.in","r",stdin); ^ user.cpp:10:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rezervatie.out","w",stdout); ^