Submission #3411062


Source Code Expand

/*
[agc025] C - Interval Game
*/

#include <algorithm>
#include <cassert>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>
using namespace std;
typedef long long int ll;
typedef pair<int, int> pii;
typedef pair<ll, int> pli;

const int MAX_N = 100000;
const int C = MAX_N;

int N;
int l[MAX_N], r[MAX_N];
int sl[2 * MAX_N + 1], sr[2 * MAX_N + 1];

ll solve() {
    sl[C]++;
    sr[C]++;
    for (int i = 0; i < N; i++) {
        sl[C + r[i]]++;
        sr[C + l[i]]++;
    }
    for (int i = 1; i <= 2 * C; i++) {
        sl[i] += sl[i - 1];
    }
    for (int i = 2 * C - 1; i >= 0; i--) {
        sr[i] += sr[i + 1];
    }

    ll ans = 0;
    for (int i = 0; i < 2 * C; i++) {
        ans += min(sl[i], sr[i + 1]) * 2;
    }

    return ans;
}

int main() {
    cin >> N;
    for (int i = 0; i < N; i++) {
        cin >> l[i] >> r[i];
    }

    cout << solve() << endl;

    return 0;
}

Submission Info

Submission Time
Task C - Interval Game
User scarlet7000
Language C++14 (GCC 5.4.1)
Score 700
Code Size 1116 Byte
Status AC
Exec Time 81 ms
Memory 2560 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 700 / 700
Status
AC × 3
AC × 46
Set Name Test Cases
Sample sample01.txt, sample02.txt, sample03.txt
All sample01.txt, sample02.txt, sample03.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in40.txt, sample01.txt, sample02.txt, sample03.txt
Case Name Status Exec Time Memory
in01.txt AC 43 ms 2304 KB
in02.txt AC 66 ms 2560 KB
in03.txt AC 41 ms 2304 KB
in04.txt AC 26 ms 2048 KB
in05.txt AC 43 ms 2304 KB
in06.txt AC 68 ms 2560 KB
in07.txt AC 45 ms 2304 KB
in08.txt AC 16 ms 1920 KB
in09.txt AC 41 ms 2304 KB
in10.txt AC 39 ms 2176 KB
in11.txt AC 69 ms 2560 KB
in12.txt AC 69 ms 2560 KB
in13.txt AC 68 ms 2560 KB
in14.txt AC 68 ms 2560 KB
in15.txt AC 68 ms 2560 KB
in16.txt AC 73 ms 2560 KB
in17.txt AC 69 ms 2560 KB
in18.txt AC 69 ms 2560 KB
in19.txt AC 70 ms 2560 KB
in20.txt AC 68 ms 2560 KB
in21.txt AC 77 ms 2560 KB
in22.txt AC 76 ms 2560 KB
in23.txt AC 77 ms 2560 KB
in24.txt AC 77 ms 2560 KB
in25.txt AC 77 ms 2560 KB
in26.txt AC 76 ms 2560 KB
in27.txt AC 77 ms 2560 KB
in28.txt AC 78 ms 2560 KB
in29.txt AC 77 ms 2560 KB
in30.txt AC 76 ms 2560 KB
in31.txt AC 75 ms 2560 KB
in32.txt AC 77 ms 2560 KB
in33.txt AC 78 ms 2560 KB
in34.txt AC 78 ms 2560 KB
in35.txt AC 72 ms 2560 KB
in36.txt AC 73 ms 2560 KB
in37.txt AC 78 ms 2560 KB
in38.txt AC 81 ms 2560 KB
in39.txt AC 77 ms 2560 KB
in40.txt AC 78 ms 2560 KB
sample01.txt AC 3 ms 1792 KB
sample02.txt AC 3 ms 1792 KB
sample03.txt AC 3 ms 1792 KB