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Submission #297940

# Submission time Handle Problem Language Result Execution time Memory
297940 2020-09-12T08:04:53 Z b00n0rp Examination (JOI19_examination) C++17
22 / 100
 3000 ms 162624 KB 
#include<bits/stdc++.h>
using namespace std;

#define REP(i,n) for(int i = 0; i < n; i ++)
#define FOR(i,a,b) for(int i = a; i < b; i ++)
#define pii pair<int,int>
#define F first
#define S second

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

typedef tree<pii,null_type,less<pii>,rb_tree_tag,tree_order_statistics_node_update> indexed_set;

const int MX = 200005;

int n,q;

pair<pii,pii> a[MX],quer[MX];
int ans[MX];

indexed_set seg[2*MX];

int SZ = 0;

void upd(int pos,pii val){
    pos += SZ;
    while(pos){
        seg[pos].insert(val);
        pos /= 2;
    }
}

int query(int l,int val){
    l += SZ;
    int r = 2*SZ;
    int res = 0;
    while(l < r){
        if(l%2){
            res += seg[l].size()-seg[l].order_of_key({val,-1});
            l++;
        }
        if(r%2){
            --r;
            res += seg[r].size()-seg[r].order_of_key({val,-1});
        }
        l /= 2;
        r /= 2;
    }
    return res;
}

signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> n >> q;
    
    set<int> s;
    map<int,int> m;

    REP(i,n){
        cin >> a[i].S.F >> a[i].S.S;
        a[i].F.F = a[i].S.F+a[i].S.S;
        a[i].F.S = i;
        s.insert(a[i].S.F);
    }
    sort(a,a+n);
    REP(i,q){
        cin >> quer[i].S.F >> quer[i].S.S >> quer[i].F.F;
        s.insert(quer[i].S.F);
        quer[i].F.S = i;
    }
    sort(quer,quer+q);
    
    for(auto x:s){
        m[x] = SZ++;
    }
    REP(i,n) a[i].S.F = m[a[i].S.F];
    REP(i,q) quer[i].S.F = m[quer[i].S.F];
    int ind = n-1;
    for(int i = q-1; i >= 0; i --){
        while(ind >= 0 and a[ind].F.F >= quer[i].F.F){
            upd(a[ind].S.F,{a[ind].S.S,a[ind].F.S});
            // cout << "update :: " << a[ind].S.F << " " << a[ind].S.S << " " << a[ind].F.S << endl;
            ind--;
        }
        ans[quer[i].F.S] = query(quer[i].S.F,quer[i].S.S);
        // cout << "query :: " << quer[i].F.S << " " << quer[i].S.F << " " << quer[i].S.S << endl;
    }
    REP(i,q) cout << ans[i] << endl;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 38012 KB Output is correct
2 Correct 38 ms 37888 KB Output is correct
3 Correct 38 ms 37888 KB Output is correct
4 Correct 38 ms 37888 KB Output is correct
5 Correct 37 ms 37880 KB Output is correct
6 Correct 37 ms 37880 KB Output is correct
7 Correct 62 ms 41336 KB Output is correct
8 Correct 66 ms 41336 KB Output is correct
9 Correct 64 ms 41336 KB Output is correct
10 Correct 62 ms 41336 KB Output is correct
11 Correct 51 ms 39036 KB Output is correct
12 Correct 57 ms 39020 KB Output is correct
13 Correct 63 ms 41336 KB Output is correct
14 Correct 64 ms 41336 KB Output is correct
15 Correct 67 ms 41340 KB Output is correct
16 Correct 49 ms 38520 KB Output is correct
17 Correct 61 ms 41336 KB Output is correct
18 Correct 48 ms 38648 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2820 ms 162428 KB Output is correct
2 Correct 2825 ms 162296 KB Output is correct
3 Correct 2802 ms 162196 KB Output is correct
4 Correct 1951 ms 161556 KB Output is correct
5 Correct 760 ms 72440 KB Output is correct
6 Correct 587 ms 71672 KB Output is correct
7 Correct 2671 ms 157516 KB Output is correct
8 Correct 2804 ms 162324 KB Output is correct
9 Correct 2369 ms 157692 KB Output is correct
10 Correct 517 ms 56312 KB Output is correct
11 Correct 1582 ms 161400 KB Output is correct
12 Correct 532 ms 61440 KB Output is correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2820 ms 162428 KB Output is correct
2 Correct 2825 ms 162296 KB Output is correct
3 Correct 2802 ms 162196 KB Output is correct
4 Correct 1951 ms 161556 KB Output is correct
5 Correct 760 ms 72440 KB Output is correct
6 Correct 587 ms 71672 KB Output is correct
7 Correct 2671 ms 157516 KB Output is correct
8 Correct 2804 ms 162324 KB Output is correct
9 Correct 2369 ms 157692 KB Output is correct
10 Correct 517 ms 56312 KB Output is correct
11 Correct 1582 ms 161400 KB Output is correct
12 Correct 532 ms 61440 KB Output is correct
13 Correct 2806 ms 162596 KB Output is correct
14 Execution timed out 3078 ms 162624 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 38012 KB Output is correct
2 Correct 38 ms 37888 KB Output is correct
3 Correct 38 ms 37888 KB Output is correct
4 Correct 38 ms 37888 KB Output is correct
5 Correct 37 ms 37880 KB Output is correct
6 Correct 37 ms 37880 KB Output is correct
7 Correct 62 ms 41336 KB Output is correct
8 Correct 66 ms 41336 KB Output is correct
9 Correct 64 ms 41336 KB Output is correct
10 Correct 62 ms 41336 KB Output is correct
11 Correct 51 ms 39036 KB Output is correct
12 Correct 57 ms 39020 KB Output is correct
13 Correct 63 ms 41336 KB Output is correct
14 Correct 64 ms 41336 KB Output is correct
15 Correct 67 ms 41340 KB Output is correct
16 Correct 49 ms 38520 KB Output is correct
17 Correct 61 ms 41336 KB Output is correct
18 Correct 48 ms 38648 KB Output is correct
19 Correct 2820 ms 162428 KB Output is correct
20 Correct 2825 ms 162296 KB Output is correct
21 Correct 2802 ms 162196 KB Output is correct
22 Correct 1951 ms 161556 KB Output is correct
23 Correct 760 ms 72440 KB Output is correct
24 Correct 587 ms 71672 KB Output is correct
25 Correct 2671 ms 157516 KB Output is correct
26 Correct 2804 ms 162324 KB Output is correct
27 Correct 2369 ms 157692 KB Output is correct
28 Correct 517 ms 56312 KB Output is correct
29 Correct 1582 ms 161400 KB Output is correct
30 Correct 532 ms 61440 KB Output is correct
31 Correct 2806 ms 162596 KB Output is correct
32 Execution timed out 3078 ms 162624 KB Time limit exceeded
33 Halted 0 ms 0 KB -