Look at these submissions:
They have one different that is using:
for(int c:vec)
instead of:
for(int j=0;j<vec.size();j++){
int c = vec[j];
...
}
one get Runtime and other one is Accepted.
I think that is happen because I change the size of my vector in the "for" However the size of it will be constant after each step.
Can I anyone explain? Tnks a lot.
