Submission #305121

#	Time	Username	Problem	Language	Result	Execution time	Memory
305121		phathnv	Preokret (COCI18_preokret)	C++11	50 / 50	1 ms	384 KiB

preokret

#include <bits/stdc++.h>

#define mp make_pair
#define X first
#define Y second

using namespace std;

typedef long long ll;
typedef pair <int, int> ii;

const int N = 3000;

int a, b;
int dif[N];

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int points = 0, turnarounds = 0;

    cin >> a;
    for(int i = 1; i <= a; i++){
        int x;
        cin >> x;
        dif[x]++;
        if (x <= 1440)
            points++;
    }
    cin >> b;
    for(int i = 1; i <= b; i++){
        int x;
        cin >> x;
        dif[x]--;
        if (x <= 1440)
            points++;
    }

    for(int i = 1; i <= 2880; i++)
        dif[i] += dif[i - 1];

    int pre = 0, cur = 0;
    while (cur < 2880){
        int nxt = cur;
        while (dif[nxt] == dif[cur] && nxt <= 2880)
            nxt++;
        if (nxt > 2880)
            break;

        if (dif[pre] * dif[nxt] == -1)
            turnarounds++;

        pre = cur;
        cur = nxt;
    }

    cout << points << endl << turnarounds << endl;

    return 0;
}

• Subtask 1: 50 / 50