#include <iostream.h>
#include <stdlib.h>

int cmp(const void *a, const void *b){
	return *(int *)a - *(int *)b;
}

int main(){
	unsigned int Place[10000], Num, i;
	__int64 Vol = 0, Temp = 1;
	cin >>Num;
	for (i = 0; i < Num; i++)
		cin >>Place[i];
	
	qsort(Place, Num, sizeof(unsigned int), cmp);
	
	for (i = 0; i < Num - 1; i++)
		Vol += (Place[i+1] - Place[i]) * (i + 1) * (Num - i - 1) * 2;
	while(Temp <= Vol ) Temp *= 10;
	Temp /= 10;

	while(Temp > 0){
		cout <<int(Vol / Temp);
		Vol %= 10 ;
		Temp /= 10;
	}
	cout <<endl;

	return 0;
}

总是 WA。
顺便问下， __int64类型的该怎么输出

• Re:不行了，各位大侠帮帮忙吧！ (703) zhucheng 2005-03-05 18:19:15
  • Re:不行了，各位大侠帮帮忙吧！ (52) Bloodmage 2005-03-05 18:59:55