Compilare: user.cpp: In function ‘void bf(int)’: user.cpp:83:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<V[z].size();i++) ^ user.cpp:173:33: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if(drum & 1 == 0 && drum< celestin) ^ user.cpp:209:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<V[z].size();i++) ^ user.cpp:74:18: warning: unused variable ‘k’ [-Wunused-variable] int p,sf,i,z,k; ^ user.cpp: In function ‘void citire()’: user.cpp:13:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:17:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^