Compilare: user.cpp: In function ‘int main()’: user.cpp:38:14: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> a + 1; ^ user.cpp:39:14: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> b + 1; ^ user.cpp:58:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0 ; j < v.size() ; j++) ^