Compilare: main.cpp: In function 'int prev(int)': main.cpp:13:18: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses] return x-(x&(~x)+1); ~~~~^~ main.cpp: In function 'int next(int)': main.cpp:16:18: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses] return x+(x&(~x)+1); ~~~~^~ main.cpp: In function 'int main()': main.cpp:35:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<s1.length();i++){ ~^~~~~~~~~~~~ main.cpp:39:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<s2.length();i++){ ~^~~~~~~~~~~~