long long data type in GCC and what's the meaning of 1LL
ISOC99supportsdatatypesforintegersthatareatleast64bitswide,andasanextensionGCCsupportstheminC89modeandinC++.Simplywritelonglongintforasignedinteger,orunsignedlonglongintforanunsignedinteger.Tomakeanin