제출 #1039814

#제출 시각아이디문제언어결과실행 시간메모리
1039814onbert이상적인 도시 (IOI12_city)C++17
23 / 100
19 ms2140 KiB
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int M = 1e9;
int32_t DistanceSum(int32_t n, int32_t X[], int32_t Y[]) {
    int ans = 0, sum = 0;
    sort(X, X+n);
    for (int i=0;i<n;i++) ans += i * X[i] - sum, ans %= M, sum += X[i];
    sum = 0;
    sort(Y, Y+n);
    for (int i=0;i<n;i++) ans += i * Y[i] - sum, ans %= M, sum += Y[i];
    return ans;
}
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