Submission #1213905

#	Time	Username	Problem	Language	Result	Execution time	Memory
1213905		Hamed_Ghaffari	Coin Collecting (JOI19_ho_t4)	C++20	0 / 100	0 ms	328 KiB

joi2019_ho_t4

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

const int MXN = 1e5+5;

int n, a[MXN], up, dw;
ll ans;

int32_t main() {
    cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
    cin >> n;
    for(int i=1,x,y; i<=2*n; i++) {
        cin >> x >> y;
        if(y>=2) {
            up++;
            ans += y-2;
        }
        else {
            dw++;
            ans += 1-y;
        }
        if(x<1) {
            a[1]++;
            ans += 1-x;
        }
        else if(x>n) {
            a[n]++;
            ans += x-n;
        }
        else a[x]++;
    }
    ans += abs(up-dw)>>1;
    for(int i=1; i<=n; i++)
        ans += abs(a[i] += a[i-1]-2);
    cout << ans << '\n';
    return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63