Sir doubt in vector class

#1

sir just check this code

if i create blank vector and do v.size() it gives 0 thats right
but if i do v.size()-1 than it should give -1 isnt it?? that is 0-1=-1
but its showing very big number why here is the code

#2

@tejasddongare you are right!

this happens because v.size() results in an unsigned int, so v.size()-1 will never give a negative value, instead it will roll over to approx 2*MAX - 1 (MAX is largest value of signed long long)

#3

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