Compilare: user.cpp:10:6: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main() ^ user.cpp: In function ‘int main()’: user.cpp:12:10: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] in>>s+1>>r; ^ user.cpp:16:14: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] in>>c+1; ^