Submission #201033

#	Time	Username	Problem	Language	Result	Execution time	Memory
201033		HellAngel	Just Long Neckties (JOI20_ho_t1)	C++14	100 / 100	193 ms	7544 KiB

ho_t1

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

const int maxn = 200007;

int n, b[maxn], IT[4 * maxn], ans[maxn];
pair<int, int> a[maxn];

void Update(int id, int l, int r, int pos, int val)
{
    if(l == r)
    {
        IT[id] = val;
        return;
    }
    int mid = l + r >> 1;
    if(pos <= mid) Update(id * 2, l, mid, pos, val);
    else Update(id * 2 + 1, mid + 1, r, pos, val);
    IT[id] = max(IT[id * 2], IT[id * 2 + 1]);

}

int32_t main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    if(fopen("test.inp", "r")) freopen("test.inp", "r", stdin);
    cin >> n;
    for(int i = 1; i <= n + 1; i++)
    {
        cin >> a[i].first;
        a[i].second = i;
    }
    sort(a + 1, a + n + 2);
    for(int i = 1; i <= n; i++)
    {
        cin >> b[i];
    }
    sort(b + 1, b + n + 1);
    for(int i = 1; i <= n; i++) Update(1, 1, n, i, a[i + 1].first - b[i]);
    ans[a[1].second] = IT[1];
    for(int i = 2; i <= n + 1; i++)
    {
        Update(1, 1, n, i - 1, a[i - 1].first - b[i - 1]);
        ans[a[i].second] = IT[1];
    }
    for(int i = 1; i <= n + 1; i++)
    {
        cout << max(ans[i], 0) << ' ';
    }
}

Compilation message (stderr)

ho_t1.cpp: In function 'void Update(int, int, int, int, int)':
ho_t1.cpp:16:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid = l + r >> 1;
               ~~^~~
ho_t1.cpp: In function 'int32_t main()':
ho_t1.cpp:27:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     if(fopen("test.inp", "r")) freopen("test.inp", "r", stdin);
                                ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 8 / 8
• Subtask 3: 91 / 91