oj.uz

Submission #475841

# Submission time Handle Problem Language Result Execution time Memory
475841 2021-09-24T08:50:14 Z Jarif_Rahman Snowball (JOI21_ho_t2) C++17
33 / 100
 2500 ms 20420 KB 
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
const ll inf = 1e13;
struct segtree{
    const ll inf = 1e18;
    struct node{
        ll sm, mx, mn;
        node(){
            sm = 0, mx = -1e18, mn = 1e18;
        }
        node(ll x){
            sm = x, mx = x, mn = x;
        }
        node operator+(node a){
            node rt;
            rt.sm = sm+a.sm;
            rt.mx = max(mx, a.mx);
            rt.mn = min(mn, a.mn);
            return rt;
        }
    };
    int k;
    vector<node> v;
    segtree(int n){
        k = 1;
        while(k < n) k*=2;
        k*=2;
        v.resize(k, node());
    }
    void upd(int in, ll x){
        in+=k/2;
        v[in] = node(x);
        in/=2;
        while(in > 0){
            v[in] = v[2*in]+v[2*in+1];
            in/=2;
        }
    }
    int first_atleast(int nd, int a, int b, ll x){
        if(v[nd].mx < x) return -1;
        if(a == b) return a;
        int md = (a+b)/2;
        if(v[2*nd].mx < x) return first_atleast(2*nd+1, md+1, b, x);
        else return first_atleast(2*nd, a, md, x);
    }
    int first_atleast(ll x){
        return first_atleast(1, 0, k/2-1, x);
    }
    int first_atmost(int nd, int a, int b, ll x){
        if(v[nd].mn > x) return -1;
        if(a == b) return a;
        int md = (a+b)/2;
        if(v[2*nd].mn > x) return first_atmost(2*nd+1, md+1, b, x);
        else return first_atmost(2*nd, a, md, x);
    }
    int first_atmost(ll x){
        return first_atmost(1, 0, k/2-1, x);
    }
};
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, q; cin >> n >> q;
    vector<ll> v(n);
    for(ll &x: v) cin >> x;

    vector<ll> w(q);
    for(ll &x: w) cin >> x;
    vector<ll> sum(q+1);
    sum[0] = 0;
    for(int i = 0; i < q; i++) sum[i+1] = sum[i]+w[i];
    segtree seg(q+1);
    for(int i = 0; i < q+1; i++) seg.upd(i, sum[i]);

    vector<ll> ans(n, 0);

    for(int i = 0; i < n; i++){
        
        ll a = -inf, b = v[i];
        if(i != 0) a = v[i-1];
        while(a < b){
            ll md = (a+b);
            if(md >= 0) md/=2;
            else md/=2, md--;
            int x = seg.first_atmost(md-v[i]);
            if(x == -1){
                a = md+1;
                continue;
            }
            if(i != 0 && seg.first_atleast(md+1-v[i-1]) != -1 && seg.first_atleast(md+1-v[i-1]) < x){
                a = md+1;
                continue;
            }
            b = md;
        }
        ans[i]+=v[i]-a;

        a = v[i], b = inf;
        if(i != n-1) b = v[i+1];
        while(a < b){
            ll md = (a+b+1)/2;
            int x = seg.first_atleast(md-v[i]);
            if(x == -1){
                b = md-1;
                continue;
            }
            if(i != n-1 && seg.first_atmost(md-1-v[i+1]) != -1 && seg.first_atmost(md-1-v[i+1]) < x){
                b = md-1;
                continue;
            }
            a = md;
        }
        ans[i]+=a-v[i];

    }

    for(ll x: ans) cout << x << "\n";
}

Subtask #1
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 14 ms 472 KB Output is correct
5 Correct 12 ms 476 KB Output is correct
6 Correct 10 ms 460 KB Output is correct
7 Correct 9 ms 476 KB Output is correct
8 Correct 9 ms 460 KB Output is correct
9 Correct 8 ms 460 KB Output is correct
10 Correct 2 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 15 ms 460 KB Output is correct
16 Correct 13 ms 472 KB Output is correct
17 Correct 9 ms 460 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 460 KB Output is correct

Subtask #2
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 14 ms 472 KB Output is correct
5 Correct 12 ms 476 KB Output is correct
6 Correct 10 ms 460 KB Output is correct
7 Correct 9 ms 476 KB Output is correct
8 Correct 9 ms 460 KB Output is correct
9 Correct 8 ms 460 KB Output is correct
10 Correct 2 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 15 ms 460 KB Output is correct
16 Correct 13 ms 472 KB Output is correct
17 Correct 9 ms 460 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 52 ms 15756 KB Output is correct
21 Correct 60 ms 15628 KB Output is correct
22 Correct 55 ms 15704 KB Output is correct
23 Correct 73 ms 15848 KB Output is correct
24 Correct 306 ms 16200 KB Output is correct
25 Execution timed out 2504 ms 20420 KB Time limit exceeded
26 Halted 0 ms 0 KB -