Compilare: user.cpp: In function ‘void p2()’: user.cpp:26:25: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] nr2[i]=nr+100*(1-i&1); ^ user.cpp: In function ‘void solve()’: user.cpp:129:19: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(cb(2,nr3[q-3],q-3)!=n+1) ^ user.cpp:149:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(cb(1,nr2[q-2],q-2)!=n+1) ^ user.cpp: In function ‘void sol()’: user.cpp:174:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<d.size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:180:9: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>c+1; ^ user.cpp: In function ‘int cb(int, int, int)’: user.cpp:111:1: warning: control reaches end of non-void function [-Wreturn-type] } ^