Submission #962367

#	Time	Username	Problem	Language	Result	Execution time	Memory
962367		GrindMachine	Ideal city (IOI12_city)	C++17	0 / 100	29 ms	2044 KiB

city

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) (int)a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x,y) ((x+y-1)/(y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl

#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)

template<typename T>
void amin(T &a, T b) {
    a = min(a,b);
}

template<typename T>
void amax(T &a, T b) {
    a = max(a,b);
}

#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif

/*



*/

const int MOD = 1e9;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;

int DistanceSum(int n, int *X, int *Y) {
    vector<int> a(n), b(n);
    rep(i,n) a[i] = X[i], b[i] = Y[i];
    sort(all(a)), sort(all(b));

    ll ans = 0;

    {
        ll sum = 0;
        rep(i,n){
            ans += a[i]*i-sum;
            ans = (ans%MOD+MOD)%MOD;
            sum += a[i];
        }
    }

    {
        ll sum = 0;
        rep(i,n){
            ans += b[i]*i-sum;
            ans = (ans%MOD+MOD)%MOD;
            sum += b[i];
        }
    }

    return ans;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 21
• Subtask 3: 0 / 23
• Subtask 4: 0 / 45