oj.uz

답안 #259029

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
259029 2020-08-07T04:51:16 Z Namnamseo 역사적 조사 (JOI14_historical) C++17
100 / 100
 3541 ms 7660 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

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, ll val){
    tree[i+=131072] += val;
    for(i/=2; i; i/=2) {
        tree[i] = max(tree[i*2], tree[i*2+1]);
    }
}

inline void removeNum(ll x){
    update(x, -v[x]);
}
inline void addNum(ll x){
    update(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 = ceil(sqrt(n));
    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 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 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 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 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 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 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 2 ms 512 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 14 ms 640 KB Output is correct
6 Correct 26 ms 760 KB Output is correct
7 Correct 30 ms 760 KB Output is correct
8 Correct 27 ms 760 KB Output is correct
9 Correct 30 ms 768 KB Output is correct
10 Correct 27 ms 768 KB Output is correct
11 Correct 27 ms 768 KB Output is correct
12 Correct 27 ms 768 KB Output is correct
13 Correct 27 ms 768 KB Output is correct
14 Correct 26 ms 760 KB Output is correct
15 Correct 35 ms 768 KB Output is correct
16 Correct 28 ms 760 KB Output is correct
17 Correct 41 ms 760 KB Output is correct
18 Correct 28 ms 760 KB Output is correct
19 Correct 25 ms 768 KB Output is correct
20 Correct 31 ms 768 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 512 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 3 ms 640 KB Output is correct
8 Correct 5 ms 896 KB Output is correct
9 Correct 11 ms 1024 KB Output is correct
10 Correct 16 ms 1408 KB Output is correct
11 Correct 78 ms 4972 KB Output is correct
12 Correct 32 ms 2300 KB Output is correct
13 Correct 52 ms 3184 KB Output is correct
14 Correct 77 ms 4844 KB Output is correct
15 Correct 109 ms 6620 KB Output is correct
16 Correct 76 ms 5844 KB Output is correct
17 Correct 39 ms 3056 KB Output is correct
18 Correct 70 ms 4844 KB Output is correct
19 Correct 78 ms 6636 KB Output is correct
20 Correct 37 ms 4464 KB Output is correct

Subtask #4
60.0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 72 ms 1024 KB Output is correct
2 Correct 192 ms 1396 KB Output is correct
3 Correct 360 ms 2036 KB Output is correct
4 Correct 563 ms 2924 KB Output is correct
5 Correct 797 ms 3312 KB Output is correct
6 Correct 1000 ms 3696 KB Output is correct
7 Correct 1249 ms 4580 KB Output is correct
8 Correct 1679 ms 5100 KB Output is correct
9 Correct 2810 ms 5740 KB Output is correct
10 Correct 3532 ms 5852 KB Output is correct
11 Correct 2552 ms 5968 KB Output is correct
12 Correct 2137 ms 5868 KB Output is correct
13 Correct 2190 ms 5992 KB Output is correct
14 Correct 2333 ms 6372 KB Output is correct
15 Correct 2407 ms 6756 KB Output is correct
16 Correct 2314 ms 6500 KB Output is correct
17 Correct 2324 ms 6392 KB Output is correct
18 Correct 2354 ms 6372 KB Output is correct
19 Correct 2334 ms 6484 KB Output is correct
20 Correct 2297 ms 6376 KB Output is correct
21 Correct 2301 ms 7012 KB Output is correct
22 Correct 2313 ms 7660 KB Output is correct
23 Correct 2290 ms 7564 KB Output is correct
24 Correct 2283 ms 7648 KB Output is correct
25 Correct 3541 ms 7412 KB Output is correct