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답안 #231050

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
231050 2020-05-12T12:43:18 Z JooDdae 역사적 조사 (JOI14_historical) C++17
40 / 100
 4000 ms 10888 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];
unordered_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 = q[1].l, r = q[1].l-1;
    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 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 5 ms 384 KB Output is correct
6 Correct 4 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 5 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 20 ms 512 KB Output is correct
6 Correct 33 ms 640 KB Output is correct
7 Correct 37 ms 640 KB Output is correct
8 Correct 26 ms 640 KB Output is correct
9 Correct 26 ms 640 KB Output is correct
10 Correct 44 ms 768 KB Output is correct
11 Correct 44 ms 760 KB Output is correct
12 Correct 46 ms 760 KB Output is correct
13 Correct 44 ms 760 KB Output is correct
14 Correct 41 ms 640 KB Output is correct
15 Correct 43 ms 640 KB Output is correct
16 Correct 28 ms 640 KB Output is correct
17 Correct 14 ms 640 KB Output is correct
18 Correct 42 ms 640 KB Output is correct
19 Correct 46 ms 760 KB Output is correct
20 Correct 52 ms 768 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 6 ms 384 KB Output is correct
7 Correct 10 ms 512 KB Output is correct
8 Correct 12 ms 768 KB Output is correct
9 Correct 27 ms 1152 KB Output is correct
10 Correct 17 ms 1024 KB Output is correct
11 Correct 123 ms 4728 KB Output is correct
12 Correct 60 ms 1536 KB Output is correct
13 Correct 186 ms 2812 KB Output is correct
14 Correct 252 ms 6312 KB Output is correct
15 Correct 136 ms 9348 KB Output is correct
16 Correct 194 ms 9732 KB Output is correct
17 Correct 60 ms 2680 KB Output is correct
18 Correct 126 ms 4472 KB Output is correct
19 Correct 209 ms 10888 KB Output is correct
20 Correct 81 ms 8328 KB Output is correct

Subtask #4
0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 74 ms 844 KB Output is correct
2 Correct 285 ms 1528 KB Output is correct
3 Correct 668 ms 2424 KB Output is correct
4 Correct 1150 ms 3320 KB Output is correct
5 Correct 1594 ms 4088 KB Output is correct
6 Correct 1863 ms 4216 KB Output is correct
7 Correct 1699 ms 4344 KB Output is correct
8 Correct 1318 ms 4984 KB Output is correct
9 Correct 858 ms 5496 KB Output is correct
10 Correct 373 ms 5752 KB Output is correct
11 Correct 1214 ms 5724 KB Output is correct
12 Correct 2738 ms 5880 KB Output is correct
13 Execution timed out 4078 ms 5112 KB Time limit exceeded
14 Halted 0 ms 0 KB -