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it is strange that i use vector<int> and get AC but if i use an int array ,i get an WA.i 've found that those two code must be different during the running of the program: int a[30005]; for(i = 0;i < m;++i) { int * pp = lower_bound(a, a + i, a[i]); int pos = pp - a; int temp = a[i]; memcpy(a + pos +...

Could anyone tell me the content of the erdos-gallai theorem? thanks.

thanks.

It's name is Subway.I'v copied it and it's solution below,but cannot understand at the position '*'; ############################################### Subway Subway trains are meant to move people as quickly, safely, and comfortably as possible from station to station. Although the train drivers' unio...

I can't understand this problem. :( what does this mean? "The number of cats inside each (non-smallest) cat's hat is a constant, N. The height of these cats-in-a-hat is times the height of the cat whose hat they are in. The smallest cats are of height one; these are the cats that get the work d...