oj.uz

답안 #259037

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
259037 2020-08-07T04:56:43 Z 반딧불(#5071) 역사적 조사 (JOI14_historical) C++17
40 / 100
 4000 ms 7148 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

using namespace std;

typedef long long ll;
int sqrtN;

struct Query{
    int l, r, idx;
    Query(){}
    Query(int l, int r, int idx): l(l), r(r), idx(idx){}

    bool operator<(const Query &tmp)const{
        if(l/sqrtN != tmp.l/sqrtN) return l < tmp.l;
        return r < tmp.r;
    }
};

int n, q, k;
ll arr[100002];
vector<Query> vec;
ll cnt[100002];
ll ans[100002];
vector<ll> v;

ll tree[400002];
inline void update(int i, int l, int r, int idx, ll val){
    if(l==r){
        tree[i] += val;
        return;
    }
    int m = (l+r)>>1;
    if(idx<=m) update(i*2, l, m, idx, val);
    else update(i*2+1, m+1, r, idx, val);
    tree[i] = max(tree[i*2], tree[i*2+1]);
}

inline void removeNum(ll x){
    update(1, 0, k-1, x, -v[x]);
}
inline void addNum(ll x){
    update(1, 0, k-1, x, v[x]);
}

void renumber(){
    for(int i=0; i<n; i++) v.push_back(arr[i]);
    sort(v.begin(), v.end());
    v.erase(unique(v.begin(), v.end()), v.end());
    for(int i=0; i<n; i++) arr[i] = lower_bound(v.begin(), v.end(), arr[i]) - v.begin();
    k = (int)v.size();
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> q;
    sqrtN = 1500;
    for(int i=0; i<n; i++) cin >> arr[i];
    renumber();
    for(int i=1; i<=q; i++){
        int l, r;
        cin >> l >> r;
        l--, r--;
        vec.push_back(Query(l, r, i));
    }
    sort(vec.begin(), vec.end());

    int s = 0, e = -1;
    for(int i=0; i<q; i++){
        Query tmp = vec[i];
        int l = tmp.l, r = tmp.r, idx = tmp.idx;
        while(e < r) addNum(arr[++e]);
        while(s > l) addNum(arr[--s]);
        while(e > r) removeNum(arr[e--]);
        while(s < l) removeNum(arr[s++]);
        ans[idx] = tree[1];
    }

    for(int i=1; i<=q; i++){
        cout << ans[i] << '\n';
    }
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 20 ms 512 KB Output is correct
5 Correct 51 ms 512 KB Output is correct
6 Correct 80 ms 760 KB Output is correct
7 Correct 89 ms 760 KB Output is correct
8 Correct 53 ms 640 KB Output is correct
9 Correct 53 ms 640 KB Output is correct
10 Correct 133 ms 648 KB Output is correct
11 Correct 127 ms 724 KB Output is correct
12 Correct 125 ms 768 KB Output is correct
13 Correct 127 ms 760 KB Output is correct
14 Correct 114 ms 760 KB Output is correct
15 Correct 125 ms 712 KB Output is correct
16 Correct 58 ms 696 KB Output is correct
17 Correct 25 ms 768 KB Output is correct
18 Correct 115 ms 760 KB Output is correct
19 Correct 129 ms 764 KB Output is correct
20 Correct 140 ms 760 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 3 ms 640 KB Output is correct
8 Correct 6 ms 768 KB Output is correct
9 Correct 14 ms 1024 KB Output is correct
10 Correct 10 ms 1536 KB Output is correct
11 Correct 68 ms 5084 KB Output is correct
12 Correct 36 ms 2300 KB Output is correct
13 Correct 61 ms 3012 KB Output is correct
14 Correct 91 ms 5224 KB Output is correct
15 Correct 121 ms 6624 KB Output is correct
16 Correct 88 ms 6380 KB Output is correct
17 Correct 38 ms 3180 KB Output is correct
18 Correct 75 ms 4844 KB Output is correct
19 Correct 83 ms 7148 KB Output is correct
20 Correct 41 ms 4976 KB Output is correct

Subtask #4
0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 144 ms 1016 KB Output is correct
2 Correct 483 ms 1392 KB Output is correct
3 Correct 1087 ms 1908 KB Output is correct
4 Correct 1692 ms 2860 KB Output is correct
5 Correct 2337 ms 3212 KB Output is correct
6 Correct 2295 ms 3684 KB Output is correct
7 Correct 1803 ms 4440 KB Output is correct
8 Correct 1179 ms 5092 KB Output is correct
9 Correct 660 ms 5612 KB Output is correct
10 Correct 251 ms 5740 KB Output is correct
11 Correct 1000 ms 5788 KB Output is correct
12 Correct 2503 ms 5736 KB Output is correct
13 Execution timed out 4088 ms 4716 KB Time limit exceeded
14 Halted 0 ms 0 KB -