oj.uz

답안 #231043

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
231043 2020-05-12T12:33:23 Z JooDdae 역사적 조사 (JOI14_historical) C++17
40 / 100
 4000 ms 13304 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define mid ((l+r)>>1)

const int sq = 400;

inline int64_t hilbertOrder(int x, int y, int pow, int rotate) {
    if (pow == 0) {
        return 0;
    }
    int hpow = 1 << (pow-1);
    int seg = (x < hpow) ? (
        (y < hpow) ? 0 : 3
    ) : (
        (y < hpow) ? 1 : 2
    );
    seg = (seg + rotate) & 3;
    const int rotateDelta[4] = {3, 0, 0, 1};
    int nx = x & (x ^ hpow), ny = y & (y ^ hpow);
    int nrot = (rotate + rotateDelta[seg]) & 3;
    int64_t subSquareSize = int64_t(1) << (2*pow - 2);
    int64_t ans = seg * subSquareSize;
    int64_t add = hilbertOrder(nx, ny, pow-1, nrot);
    ans += (seg == 1 || seg == 2) ? add : (subSquareSize - add - 1);
    return ans;
}

struct query{
    int l, r, id;
    long long order;
    void init(){
        order = hilbertOrder(l, r, 21, 0);
    }
    bool operator < (const query &o) const{
        return order < o.order;
    }
}q[100100];
int n, m, cnt, id[100100];
ll x[100100], tree[400400], ans[100100];
map<ll, int> mp;
 
void update(int id, ll val, int node = 1, int l = 1, int r = cnt){
    if(id < l || r < id) return;
    if(l == r){
        tree[node] += val;
        return;
    }
    update(id, val, node*2, l, mid), update(id, val, node*2+1, mid+1, r);
    tree[node] = max(tree[node*2], tree[node*2+1]);
}
 
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    cin >> n >> m;
    for(int i=1;i<=n;i++) cin >> x[i], mp[x[i]] = 0;
    for(auto &x : mp) x.second = ++cnt;
    for(int i=1;i<=n;i++) id[i] = mp[x[i]];
 
    for(int i=1;i<=m;i++) cin >> q[i].l >> q[i].r, q[i].id = i, q[i].init();
    sort(q+1, q+1+m);
    
    int l = 1, r = 0;
    for(int i=1;i<=m;i++){
        while(l > q[i].l) l--, update(id[l], x[l]);
        while(r < q[i].r) r++, update(id[r], x[r]);
        while(l < q[i].l) update(id[l], -x[l]), l++;
        while(r > q[i].r) update(id[r], -x[r]), r--;
 
        ans[q[i].id] = tree[1];
    }
    for(int i=1;i<=m;i++) cout << ans[i] << '\n';
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 7 ms 384 KB Output is correct
4 Correct 10 ms 512 KB Output is correct
5 Correct 22 ms 512 KB Output is correct
6 Correct 34 ms 760 KB Output is correct
7 Correct 37 ms 640 KB Output is correct
8 Correct 34 ms 640 KB Output is correct
9 Correct 28 ms 640 KB Output is correct
10 Correct 47 ms 768 KB Output is correct
11 Correct 46 ms 760 KB Output is correct
12 Correct 46 ms 760 KB Output is correct
13 Correct 45 ms 760 KB Output is correct
14 Correct 42 ms 640 KB Output is correct
15 Correct 44 ms 760 KB Output is correct
16 Correct 30 ms 632 KB Output is correct
17 Correct 14 ms 640 KB Output is correct
18 Correct 44 ms 760 KB Output is correct
19 Correct 50 ms 888 KB Output is correct
20 Correct 49 ms 888 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 7 ms 512 KB Output is correct
6 Correct 7 ms 384 KB Output is correct
7 Correct 10 ms 512 KB Output is correct
8 Correct 14 ms 768 KB Output is correct
9 Correct 34 ms 1280 KB Output is correct
10 Correct 15 ms 1024 KB Output is correct
11 Correct 124 ms 4728 KB Output is correct
12 Correct 70 ms 1536 KB Output is correct
13 Correct 196 ms 2936 KB Output is correct
14 Correct 293 ms 7160 KB Output is correct
15 Correct 174 ms 10232 KB Output is correct
16 Correct 262 ms 11896 KB Output is correct
17 Correct 70 ms 2680 KB Output is correct
18 Correct 135 ms 4576 KB Output is correct
19 Correct 224 ms 13304 KB Output is correct
20 Correct 108 ms 10616 KB Output is correct

Subtask #4
0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 77 ms 888 KB Output is correct
2 Correct 292 ms 1492 KB Output is correct
3 Correct 671 ms 2424 KB Output is correct
4 Correct 1200 ms 3576 KB Output is correct
5 Correct 1652 ms 4216 KB Output is correct
6 Correct 1925 ms 4088 KB Output is correct
7 Correct 1749 ms 4280 KB Output is correct
8 Correct 1346 ms 4984 KB Output is correct
9 Correct 900 ms 5496 KB Output is correct
10 Correct 369 ms 5880 KB Output is correct
11 Correct 1225 ms 5752 KB Output is correct
12 Correct 2791 ms 5880 KB Output is correct
13 Execution timed out 4075 ms 5368 KB Time limit exceeded
14 Halted 0 ms 0 KB -