Vagente edited 3 年，1 月前
答案是 499998143
我的输出是499998126
如果我的输出比答案大可能是我逻辑的问题，没有找到最优解。但我找了半天也没找出来为什么我的输出会比答案小。
#include<iostream>
#include<algorithm>
#include<cmath>
using namespace std;
int *houses;
int main(){
int32_t n;
cin >> n;
houses = new int32_t[n];
for(int i = 0; i < n; i++){
cin >> houses[i];
}
sort(houses, houses + n);
float midPoint = (houses[0] + houses[n - 1]) / (float) 2;
int32_t closest;
int32_t min = houses[n - 1];
for(int i = 0; i < n; i++){
float temp = abs(houses[i] - midPoint);
if(temp < min){
min = temp;
closest = houses[i];
}
}
if(closest >= midPoint){
cout<<houses[n - 1] - closest;
}else
cout<<closest - houses[0];
delete[] houses;
}