Compilare: user.cpp: In function ‘int main()’: user.cpp:18:14: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] cin >> a + 1 >> b + 1; ^ user.cpp:18:23: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] cin >> a + 1 >> b + 1; ^ user.cpp:19:9: warning: unused variable ‘n’ [-Wunused-variable] int n = strlen(a + 1), m = strlen(b + 1); ^