oj.uz

Submission #1043907

# Submission time Handle Problem Language Result Execution time Memory
1043907 2024-08-05T03:37:07 Z vjudge1 Schools (IZhO13_school) C++17
70 / 100
 2000 ms 61644 KB 
#include <bits/stdc++.h>
#define fi(i, a, b) for( int i = a; i <= b; i++ )
#define fid(i, a, b) for( int i = a; i >= b; i-- )
#define getbit(x, i) ((x>>i)&1)
#define ll long long
#define pb push_back
#define pii pair<int,int>
#define pli pair<ll,int>
#define pll pair<ll,ll>
#define st first
#define nd second
#define mp make_pair
#define HTManh ""
#define maxn 100009
#define endl '\n'
using namespace std;

int n, m, s;
pll a[300009];

pll st[3][1200009];

void build(int goc = 1, int l = 1, int r = n)
{
    if (l == r)
    {
       st[0][goc] = {a[l].st, l};
       st[1][goc] = {a[l].nd, l};
       st[2][goc] = {a[l].nd - a[l].st, l};
       return;
    }
    int mid = (l+r)/2;
    build(goc*2,l,mid);
    build(goc*2+1,mid+1,r);
    st[0][goc] = min(st[0][goc*2], st[0][goc*2+1]);
    st[1][goc] = max(st[1][goc*2], st[1][goc*2+1]);
    st[2][goc] = max(st[2][goc*2], st[2][goc*2+1]);
}

void update(int vt, int goc = 1, int l = 1, int r = n)
{
    if (vt < l || vt > r) return;
    if (l == r)
    {
        st[0][goc].st = 1e9;
        st[1][goc].st = -1e9;
        st[2][goc].st = -2e9;
        return;
    }
    int mid = (l+r)/2;
    update(vt,goc*2,l,mid);
    update(vt,goc*2+1,mid+1,r);
    st[0][goc] = min(st[0][goc*2], st[0][goc*2+1]);
    st[1][goc] = max(st[1][goc*2], st[1][goc*2+1]);
    st[2][goc] = max(st[2][goc*2], st[2][goc*2+1]);
}

pll get(int tt, int d, int c, int goc = 1, int l = 1, int r = n)
{
    if (c < l || d > r)
    {
        if (tt == 0) return {1e9, 0}; else return {-2e9, 0};
    }
    if (d <= l && r <= c) return st[tt][goc];
    int mid = (l+r)/2;
    if (tt == 0) return min(get(tt,d,c,goc*2,l,mid), get(tt,d,c,goc*2+1,mid+1,r));
    else return max(get(tt,d,c,goc*2,l,mid), get(tt,d,c,goc*2+1,mid+1,r));
}

int bit[100009];

void capnhat(int vt, int gt)
{
    while(vt <= n)
    {
        bit[vt] += gt;
        vt += (vt & -vt);
    }
}

int lay(int vt)
{
    int s = 0;
    while (vt > 0)
    {
        s += bit[vt];
        vt -= (vt & -vt);
    }
    return s;
}

int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(NULL); cout.tie(NULL);
	if (fopen(HTManh".inp", "r"))
    {
        freopen(HTManh".inp", "r", stdin);
        freopen(HTManh".out", "w", stdout);
    }

    cin >> n >> m >> s;
    fi(i,1,n) cin >> a[i].st >> a[i].nd;
    sort(a+1,a+n+1,greater<pll>());
    //fi(i,1,n) cout << a[i].st << " " << a[i].nd << endl;
    build();
    int sl = m + s;
    ll res = 0;
    fi(i,1,n)
    {
        if (i <= sl) res += a[i].st;
        capnhat(i,1);
    }
    //cout << res << endl;
    fi(i,1,s)
    {
        pll gt0 = get(0,1,sl);
        pll gt1 = get(1,sl+1,n);
        pll gt2 = get(2,1,sl);

        //cout << gt0.st << " " << gt1.st << " " << gt2.st << endl;
        int del;
        if (gt1.st - gt0.st >= gt2.st)
        {
            del = gt1.nd;
            res += gt1.st - gt0.st;
        }
        else
        {
            del = gt2.nd;
            res += gt2.st;
        }
        //cout << sl << "|" << del << " " << res << endl;
        update(del);
        if (del > sl)
        {
            int dau = 1, cuoi = n;
            while(dau <= cuoi)
            {
                int giua = (dau+cuoi)/2;
                if (lay(giua) < lay(sl) - 1) dau = giua + 1;
                else cuoi = giua - 1;
            }
            sl = dau;
        }
        capnhat(del, -1);
    }
    cout << res << endl;
}

Compilation message

school.cpp: In function 'int main()':
school.cpp:98:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   98 |         freopen(HTManh".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
school.cpp:99:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   99 |         freopen(HTManh".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
70.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 1 ms 8540 KB Output is correct
11 Correct 3 ms 8540 KB Output is correct
12 Correct 3 ms 8540 KB Output is correct
13 Correct 7 ms 14940 KB Output is correct
14 Correct 33 ms 23180 KB Output is correct
15 Incorrect 35 ms 35420 KB Output isn't correct
16 Execution timed out 2039 ms 35408 KB Time limit exceeded
17 Incorrect 98 ms 35920 KB Output isn't correct
18 Incorrect 94 ms 36332 KB Output isn't correct
19 Execution timed out 2074 ms 36408 KB Time limit exceeded
20 Incorrect 129 ms 61644 KB Output isn't correct