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답안 #231038

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
231038 2020-05-12T12:25:14 Z JooDdae 역사적 조사 (JOI14_historical) C++17
40 / 100
 4000 ms 11768 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;


const ll sz = 100000000;

char in_buf[sz];
char out_buf[sz];

inline char read_next()
{
    static ll i = sz;
    if (i == sz)
    {
        fread(in_buf, 1, sz, stdin);
        i = 0;
    }
    return in_buf[i++];
}

inline ll read_int()
{
    ll r = read_next() - '0';
    char ch;
    while ((ch = read_next()) >= '0' && ch <= '9')
        r = r * 10 + ch - '0';
    return r;
}

ll w_idx;
inline void write_next(char ch)
{
    if (w_idx == sz)
    {
        fwrite(out_buf, 1, sz, stdout);
        w_idx = 0;
    }
    out_buf[w_idx++] = ch;
}

inline void write_int(ll x)
{
    char s[10];
    ll i = 0;

    do {
        s[i++] = x % 10;
        x /= 10;
    } while (x > 0);

    i--;
    while (i >= 0)
        write_next(s[i--] + '0');
}

#define mid ((l+r)>>1)
struct query{
    int l, r, id;
    bool operator < (const query &o) const{
        return make_pair(l>>9, r) < make_pair(o.l >> 9, o.r);
    }
}q[100100];
int n, m, cnt;
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<=m;i++) cin >> q[i].l >> q[i].r, q[i].id = i;
    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(mp[x[l]], x[l]);
        while(r < q[i].r) r++, update(mp[x[r]], x[r]);
        while(l < q[i].l) update(mp[x[l]], -x[l]), l++;
        while(r > q[i].r) update(mp[x[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 4 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 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 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 8 ms 384 KB Output is correct
3 Correct 16 ms 384 KB Output is correct
4 Correct 31 ms 504 KB Output is correct
5 Correct 69 ms 608 KB Output is correct
6 Correct 96 ms 512 KB Output is correct
7 Correct 114 ms 512 KB Output is correct
8 Correct 73 ms 512 KB Output is correct
9 Correct 75 ms 512 KB Output is correct
10 Correct 167 ms 640 KB Output is correct
11 Correct 162 ms 640 KB Output is correct
12 Correct 155 ms 760 KB Output is correct
13 Correct 156 ms 760 KB Output is correct
14 Correct 148 ms 640 KB Output is correct
15 Correct 149 ms 640 KB Output is correct
16 Correct 88 ms 608 KB Output is correct
17 Correct 28 ms 512 KB Output is correct
18 Correct 146 ms 640 KB Output is correct
19 Correct 172 ms 760 KB Output is correct
20 Correct 170 ms 760 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 6 ms 512 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 8 ms 512 KB Output is correct
8 Correct 13 ms 768 KB Output is correct
9 Correct 38 ms 1272 KB Output is correct
10 Correct 13 ms 768 KB Output is correct
11 Correct 61 ms 3448 KB Output is correct
12 Correct 51 ms 1152 KB Output is correct
13 Correct 91 ms 2296 KB Output is correct
14 Correct 144 ms 6136 KB Output is correct
15 Correct 172 ms 8696 KB Output is correct
16 Correct 210 ms 11000 KB Output is correct
17 Correct 40 ms 1912 KB Output is correct
18 Correct 65 ms 3320 KB Output is correct
19 Correct 124 ms 11768 KB Output is correct
20 Correct 94 ms 10080 KB Output is correct

Subtask #4
0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 191 ms 760 KB Output is correct
2 Correct 651 ms 1308 KB Output is correct
3 Correct 1578 ms 1924 KB Output is correct
4 Correct 2777 ms 2804 KB Output is correct
5 Correct 3987 ms 3448 KB Output is correct
6 Execution timed out 4072 ms 2424 KB Time limit exceeded
7 Halted 0 ms 0 KB -