Compilare: main.cpp: In function 'void print()': main.cpp:35:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<l.size(); i++) { ~^~~~~~~~~ main.cpp: In function 'bool cmp(int, int)': main.cpp:41:21: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] return (x&((1<<bit+1)-1))<(y&((1<<bit+1)-1)); ~~~^~ main.cpp:41:40: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] return (x&((1<<bit+1)-1))<(y&((1<<bit+1)-1)); ~~~^~ main.cpp: At global scope: main.cpp:40:13: warning: 'bool cmp(int, int)' defined but not used [-Wunused-function] static bool cmp(int x, int y) { ^~~