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Submission #968764

# Submission time Handle Problem Language Result Execution time Memory
968764 2024-04-24T03:56:57 Z socpite New Home (APIO18_new_home) C++14
57 / 100
 5000 ms 531476 KB 
#include<bits/stdc++.h>
using namespace std;

const int maxn = 3e5+5;
const int INF = 1e9+5;

vector<pair<int, pair<int, int>>> ev;
vector<int> cp, cpy;
int n, q, k;

int ans[maxn];
int p[maxn], ty[maxn];
int L[maxn], Y[maxn];

int st[4*maxn][2];

struct ev_upd{
    int l, r, val, ty;
    ev_upd(int _l, int _r, int _val, int _ty): l(_l), r(_r), val(_val), ty(_ty){};
    bool operator<(const ev_upd &b)const {
        return tie(l, r, val, ty) < tie(b.l, b.r, b.val, b.ty);
    }
};

map<ev_upd, vector<int>> mp;
map<int, vector<pair<int, int>>> leaf_q;  
multiset<int> pos[maxn];

vector<ev_upd> st_time[4*maxn];

int crrt;

pair<pair<int, int>, int> undo_stack[maxn*20];
int stksz = 0;

// 0 is min, 1 is max

void upd_st(const ev_upd &ele, int &cnt, int l = 0, int r = cp.size()-1, int id = 1){
    if(ele.l > cp[r] || ele.r < cp[l])return;
    if(ele.l <= cp[l] && cp[r] <= ele.r){
        if(ele.ty == 0){
            if(st[id][0] > ele.val){
                undo_stack[stksz++] = make_pair(make_pair(id, 0), st[id][0]);
                st[id][0] = ele.val;
                cnt++;
            }
        }
        else {
            if(st[id][1] < ele.val){
                undo_stack[stksz++] = make_pair(make_pair(id, 1), st[id][1]);
                st[id][1] = ele.val;
                cnt++;
            }
        }
    }
    else {
        int mid = (l+r)>>1;
        upd_st(ele, cnt, l, mid, id<<1);
        upd_st(ele, cnt, mid+1, r, id<<1|1);
    }
}

int query_st(int pos, int l = 0, int r = cp.size()-1, int id = 1){
    int re = max(st[id][1] - pos, pos - st[id][0]);
    if(l < r){
        int mid = (l + r)>>1;
        if(pos <= cp[mid])re = max(re, query_st(pos, l, mid, id<<1));
        else re = max(re, query_st(pos, mid+1, r, id<<1|1));
    }
    return re;
}

void time_add(int ql, int qr, const ev_upd &ele, int l = 0, int r = cpy.size()-1, int id = 1){
    if(ql > qr || ql > cpy[r] || qr < cpy[l])return;
    if(ql <= cpy[l] && cpy[r] <= qr)st_time[id].push_back(ele);
    else {
        int mid = (l+r)>>1;
        time_add(ql, qr, ele, l, mid, id<<1);
        time_add(ql, qr, ele, mid+1, r, id<<1|1);
    }
}

int sumcol[maxn];
int sumall = 0, ptr = 0;

void time_dfs(int l = 0, int r = cpy.size()-1, int id = 1){
    int cnt = 0;
    for(auto ele: st_time[id])  {
        upd_st(ele, cnt);
    }
    if(l == r){
        while(ptr < ev.size() && ev[ptr].first <= cpy[l]){
            if(ev[ptr].second.first){
                sumcol[ty[ev[ptr].second.second]]--;
                if(!sumcol[ty[ev[ptr].second.second]])sumall--;
            }
            else {
                if(!sumcol[ty[ev[ptr].second.second]])sumall++;
                sumcol[ty[ev[ptr].second.second]]++;
            }
            ptr++;
        }
        // cout << sumall << endl;
        for(auto qq: leaf_q[cpy[l]]){
            ans[qq.second] = sumall < k ? -1 : query_st(qq.first);
        }
    }
    else {
        int mid = (l+r)>>1;
        time_dfs(l, mid, id<<1);
        time_dfs(mid+1, r, id<<1|1);
    }
    for(int i = 0; i < cnt; i++){
        stksz--;
        st[undo_stack[stksz].first.first][undo_stack[stksz].first.second] = undo_stack[stksz].second;
    }
}

void add_st(int l, int r, int val, int ty){
    if(l > r)return;
    mp[ev_upd(l, r, val, ty)].push_back(crrt);
}

void del_st(int l, int r, int val, int ty){
    if(l > r)return;
    ev_upd ele(l, r, val, ty);
    time_add(mp[ele].back(), crrt - 1, ele);
    mp[ele].pop_back();
}

void add_range(int l, int r){
    if(l == -INF)add_st(-INF, r, r, 1);
    else if(r == INF)add_st(l+1, INF, l, 0);
    else {
        int mid = (l+r)/2;
        add_st(l+1, mid, l, 0);
        add_st(mid+1, r, r, 1);
    }
}

void del_range(int l, int r){
    if(l == -INF)del_st(-INF, r, r, 1);
    else if(r == INF)del_st(l+1, INF, l, 0);
    else {
        int mid = (l+r)/2;
        del_st(l+1, mid, l, 0);
        del_st(mid+1, r, r, 1);
    }
}

void add(int x, int col){
    auto it = pos[col].insert(x);
    if(pos[col].size() == 1){
        add_range(-INF, x);
        add_range(x, INF);
    }
    else {
        if(next(it) == pos[col].end()){
            del_range(*prev(it), INF);
            add_range(*prev(it), x);
            add_range(x, INF);
        }
        else if(it == pos[col].begin()){
            del_range(-INF, *next(it));
            add_range(-INF, x);
            add_range(x, *next(it));
        }
        else {
            del_range(*prev(it), *next(it));
            add_range(*prev(it), *it);
            add_range(*it, *next(it));
        }
    }
}

void del(int x, int col){
    auto it = pos[col].erase(pos[col].find(x));
    if(pos[col].size() == 0){
        del_range(-INF, x);
        del_range(x, INF);
    }
    else {
        if(it == pos[col].end()){
            del_range(x, INF);
            del_range(*prev(it), x);
            add_range(*prev(it), INF);
        }
        else if(it == pos[col].begin()){
            del_range(-INF, x);
            del_range(x, *it);
            add_range(-INF, *it);
        }
        else {
            del_range(x, *it);
            del_range(*prev(it), x);
            add_range(*prev(it), *it);
        }
    }
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> k >> q;
    for(int i = 0; i < 4*maxn; i++)st[i][0] = INF, st[i][1] = -INF;
    for(int i = 1; i <= n; i++){
        int a, b;
        cin >> p[i] >> ty[i] >> a >> b;
        ev.push_back({a, {0, i}});
        ev.push_back({b+1, {1, i}});
    }
    for(int i = 1; i <= q; i++){
        cin >> L[i] >> Y[i];
        cp.push_back(L[i]);
        cpy.push_back(Y[i]);
        leaf_q[Y[i]].push_back({L[i], i});
    }
    sort(cp.begin(), cp.end());
    cp.erase(unique(cp.begin(), cp.end()), cp.end());
    sort(cpy.begin(), cpy.end());
    cpy.erase(unique(cpy.begin(), cpy.end()), cpy.end()); 
    sort(ev.begin(), ev.end());
    for(auto v: ev){
        crrt = v.first;
        if(v.second.first)del(p[v.second.second], ty[v.second.second]);
        else add(p[v.second.second], ty[v.second.second]);
    }
    time_dfs();
    for(int i = 1; i <= q; i++)cout << ans[i] << "\n";
    
}

Compilation message

new_home.cpp: In function 'void time_dfs(int, int, int)':
new_home.cpp:92:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   92 |         while(ptr < ev.size() && ev[ptr].first <= cpy[l]){
      |               ~~~~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 57696 KB Output is correct
2 Correct 13 ms 57692 KB Output is correct
3 Correct 13 ms 57692 KB Output is correct
4 Correct 13 ms 57892 KB Output is correct
5 Correct 13 ms 57908 KB Output is correct
6 Correct 19 ms 58680 KB Output is correct
7 Correct 15 ms 58212 KB Output is correct
8 Correct 16 ms 58420 KB Output is correct
9 Correct 14 ms 58204 KB Output is correct
10 Correct 17 ms 58460 KB Output is correct
11 Correct 15 ms 58172 KB Output is correct
12 Correct 16 ms 58340 KB Output is correct
13 Correct 14 ms 57948 KB Output is correct
14 Correct 15 ms 57948 KB Output is correct
15 Correct 15 ms 58352 KB Output is correct
16 Correct 17 ms 58204 KB Output is correct
17 Correct 16 ms 58204 KB Output is correct
18 Correct 16 ms 58204 KB Output is correct
19 Correct 15 ms 58172 KB Output is correct
20 Correct 16 ms 58204 KB Output is correct
21 Correct 13 ms 57796 KB Output is correct
22 Correct 14 ms 58248 KB Output is correct
23 Correct 15 ms 58152 KB Output is correct
24 Correct 16 ms 58320 KB Output is correct
25 Correct 17 ms 58192 KB Output is correct
26 Correct 15 ms 58288 KB Output is correct
27 Correct 17 ms 58136 KB Output is correct
28 Correct 15 ms 58168 KB Output is correct
29 Correct 15 ms 58200 KB Output is correct
30 Correct 17 ms 57968 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 57696 KB Output is correct
2 Correct 13 ms 57692 KB Output is correct
3 Correct 13 ms 57692 KB Output is correct
4 Correct 13 ms 57892 KB Output is correct
5 Correct 13 ms 57908 KB Output is correct
6 Correct 19 ms 58680 KB Output is correct
7 Correct 15 ms 58212 KB Output is correct
8 Correct 16 ms 58420 KB Output is correct
9 Correct 14 ms 58204 KB Output is correct
10 Correct 17 ms 58460 KB Output is correct
11 Correct 15 ms 58172 KB Output is correct
12 Correct 16 ms 58340 KB Output is correct
13 Correct 14 ms 57948 KB Output is correct
14 Correct 15 ms 57948 KB Output is correct
15 Correct 15 ms 58352 KB Output is correct
16 Correct 17 ms 58204 KB Output is correct
17 Correct 16 ms 58204 KB Output is correct
18 Correct 16 ms 58204 KB Output is correct
19 Correct 15 ms 58172 KB Output is correct
20 Correct 16 ms 58204 KB Output is correct
21 Correct 13 ms 57796 KB Output is correct
22 Correct 14 ms 58248 KB Output is correct
23 Correct 15 ms 58152 KB Output is correct
24 Correct 16 ms 58320 KB Output is correct
25 Correct 17 ms 58192 KB Output is correct
26 Correct 15 ms 58288 KB Output is correct
27 Correct 17 ms 58136 KB Output is correct
28 Correct 15 ms 58168 KB Output is correct
29 Correct 15 ms 58200 KB Output is correct
30 Correct 17 ms 57968 KB Output is correct
31 Correct 2262 ms 197388 KB Output is correct
32 Correct 97 ms 62708 KB Output is correct
33 Correct 1732 ms 190360 KB Output is correct
34 Correct 2083 ms 187976 KB Output is correct
35 Correct 2127 ms 198696 KB Output is correct
36 Correct 1848 ms 197040 KB Output is correct
37 Correct 1225 ms 173208 KB Output is correct
38 Correct 1060 ms 173088 KB Output is correct
39 Correct 778 ms 148856 KB Output is correct
40 Correct 765 ms 155256 KB Output is correct
41 Correct 1111 ms 140656 KB Output is correct
42 Correct 1100 ms 142348 KB Output is correct
43 Correct 56 ms 65476 KB Output is correct
44 Correct 1028 ms 138288 KB Output is correct
45 Correct 882 ms 129268 KB Output is correct
46 Correct 633 ms 112196 KB Output is correct
47 Correct 373 ms 107136 KB Output is correct
48 Correct 340 ms 104896 KB Output is correct
49 Correct 483 ms 117116 KB Output is correct
50 Correct 681 ms 133132 KB Output is correct
51 Correct 464 ms 112572 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4148 ms 286512 KB Output is correct
2 Correct 4692 ms 333624 KB Output is correct
3 Correct 1757 ms 220528 KB Output is correct
4 Correct 3527 ms 269684 KB Output is correct
5 Correct 3482 ms 325028 KB Output is correct
6 Correct 4336 ms 332160 KB Output is correct
7 Correct 1701 ms 222684 KB Output is correct
8 Correct 2839 ms 267692 KB Output is correct
9 Correct 3625 ms 307844 KB Output is correct
10 Correct 4382 ms 343056 KB Output is correct
11 Correct 1772 ms 329676 KB Output is correct
12 Correct 1995 ms 332836 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5057 ms 531476 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 57696 KB Output is correct
2 Correct 13 ms 57692 KB Output is correct
3 Correct 13 ms 57692 KB Output is correct
4 Correct 13 ms 57892 KB Output is correct
5 Correct 13 ms 57908 KB Output is correct
6 Correct 19 ms 58680 KB Output is correct
7 Correct 15 ms 58212 KB Output is correct
8 Correct 16 ms 58420 KB Output is correct
9 Correct 14 ms 58204 KB Output is correct
10 Correct 17 ms 58460 KB Output is correct
11 Correct 15 ms 58172 KB Output is correct
12 Correct 16 ms 58340 KB Output is correct
13 Correct 14 ms 57948 KB Output is correct
14 Correct 15 ms 57948 KB Output is correct
15 Correct 15 ms 58352 KB Output is correct
16 Correct 17 ms 58204 KB Output is correct
17 Correct 16 ms 58204 KB Output is correct
18 Correct 16 ms 58204 KB Output is correct
19 Correct 15 ms 58172 KB Output is correct
20 Correct 16 ms 58204 KB Output is correct
21 Correct 13 ms 57796 KB Output is correct
22 Correct 14 ms 58248 KB Output is correct
23 Correct 15 ms 58152 KB Output is correct
24 Correct 16 ms 58320 KB Output is correct
25 Correct 17 ms 58192 KB Output is correct
26 Correct 15 ms 58288 KB Output is correct
27 Correct 17 ms 58136 KB Output is correct
28 Correct 15 ms 58168 KB Output is correct
29 Correct 15 ms 58200 KB Output is correct
30 Correct 17 ms 57968 KB Output is correct
31 Correct 2262 ms 197388 KB Output is correct
32 Correct 97 ms 62708 KB Output is correct
33 Correct 1732 ms 190360 KB Output is correct
34 Correct 2083 ms 187976 KB Output is correct
35 Correct 2127 ms 198696 KB Output is correct
36 Correct 1848 ms 197040 KB Output is correct
37 Correct 1225 ms 173208 KB Output is correct
38 Correct 1060 ms 173088 KB Output is correct
39 Correct 778 ms 148856 KB Output is correct
40 Correct 765 ms 155256 KB Output is correct
41 Correct 1111 ms 140656 KB Output is correct
42 Correct 1100 ms 142348 KB Output is correct
43 Correct 56 ms 65476 KB Output is correct
44 Correct 1028 ms 138288 KB Output is correct
45 Correct 882 ms 129268 KB Output is correct
46 Correct 633 ms 112196 KB Output is correct
47 Correct 373 ms 107136 KB Output is correct
48 Correct 340 ms 104896 KB Output is correct
49 Correct 483 ms 117116 KB Output is correct
50 Correct 681 ms 133132 KB Output is correct
51 Correct 464 ms 112572 KB Output is correct
52 Correct 657 ms 122192 KB Output is correct
53 Correct 610 ms 115984 KB Output is correct
54 Correct 1413 ms 159840 KB Output is correct
55 Correct 975 ms 142828 KB Output is correct
56 Correct 928 ms 139160 KB Output is correct
57 Correct 1046 ms 140876 KB Output is correct
58 Correct 980 ms 137636 KB Output is correct
59 Correct 930 ms 134528 KB Output is correct
60 Correct 1077 ms 141292 KB Output is correct
61 Correct 58 ms 69172 KB Output is correct
62 Correct 642 ms 125620 KB Output is correct
63 Correct 1132 ms 146572 KB Output is correct
64 Correct 1277 ms 152912 KB Output is correct
65 Correct 1471 ms 160096 KB Output is correct
66 Correct 1192 ms 147236 KB Output is correct
67 Correct 138 ms 67836 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 57696 KB Output is correct
2 Correct 13 ms 57692 KB Output is correct
3 Correct 13 ms 57692 KB Output is correct
4 Correct 13 ms 57892 KB Output is correct
5 Correct 13 ms 57908 KB Output is correct
6 Correct 19 ms 58680 KB Output is correct
7 Correct 15 ms 58212 KB Output is correct
8 Correct 16 ms 58420 KB Output is correct
9 Correct 14 ms 58204 KB Output is correct
10 Correct 17 ms 58460 KB Output is correct
11 Correct 15 ms 58172 KB Output is correct
12 Correct 16 ms 58340 KB Output is correct
13 Correct 14 ms 57948 KB Output is correct
14 Correct 15 ms 57948 KB Output is correct
15 Correct 15 ms 58352 KB Output is correct
16 Correct 17 ms 58204 KB Output is correct
17 Correct 16 ms 58204 KB Output is correct
18 Correct 16 ms 58204 KB Output is correct
19 Correct 15 ms 58172 KB Output is correct
20 Correct 16 ms 58204 KB Output is correct
21 Correct 13 ms 57796 KB Output is correct
22 Correct 14 ms 58248 KB Output is correct
23 Correct 15 ms 58152 KB Output is correct
24 Correct 16 ms 58320 KB Output is correct
25 Correct 17 ms 58192 KB Output is correct
26 Correct 15 ms 58288 KB Output is correct
27 Correct 17 ms 58136 KB Output is correct
28 Correct 15 ms 58168 KB Output is correct
29 Correct 15 ms 58200 KB Output is correct
30 Correct 17 ms 57968 KB Output is correct
31 Correct 2262 ms 197388 KB Output is correct
32 Correct 97 ms 62708 KB Output is correct
33 Correct 1732 ms 190360 KB Output is correct
34 Correct 2083 ms 187976 KB Output is correct
35 Correct 2127 ms 198696 KB Output is correct
36 Correct 1848 ms 197040 KB Output is correct
37 Correct 1225 ms 173208 KB Output is correct
38 Correct 1060 ms 173088 KB Output is correct
39 Correct 778 ms 148856 KB Output is correct
40 Correct 765 ms 155256 KB Output is correct
41 Correct 1111 ms 140656 KB Output is correct
42 Correct 1100 ms 142348 KB Output is correct
43 Correct 56 ms 65476 KB Output is correct
44 Correct 1028 ms 138288 KB Output is correct
45 Correct 882 ms 129268 KB Output is correct
46 Correct 633 ms 112196 KB Output is correct
47 Correct 373 ms 107136 KB Output is correct
48 Correct 340 ms 104896 KB Output is correct
49 Correct 483 ms 117116 KB Output is correct
50 Correct 681 ms 133132 KB Output is correct
51 Correct 464 ms 112572 KB Output is correct
52 Correct 4148 ms 286512 KB Output is correct
53 Correct 4692 ms 333624 KB Output is correct
54 Correct 1757 ms 220528 KB Output is correct
55 Correct 3527 ms 269684 KB Output is correct
56 Correct 3482 ms 325028 KB Output is correct
57 Correct 4336 ms 332160 KB Output is correct
58 Correct 1701 ms 222684 KB Output is correct
59 Correct 2839 ms 267692 KB Output is correct
60 Correct 3625 ms 307844 KB Output is correct
61 Correct 4382 ms 343056 KB Output is correct
62 Correct 1772 ms 329676 KB Output is correct
63 Correct 1995 ms 332836 KB Output is correct
64 Execution timed out 5057 ms 531476 KB Time limit exceeded
65 Halted 0 ms 0 KB -