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Submission #159499

# Submission time Handle Problem Language Result Execution time Memory
159499 2019-10-23T00:59:38 Z arnold518 New Home (APIO18_new_home) C++14
47 / 100
 5000 ms 438220 KB 
#include <bits/stdc++.h>
#pragma gcc optimize "03"
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 3e5;
const int MAXVAL = 1e8;

struct Query
{
    int t, x, k, p;
    bool operator < (const Query &p)
    {
        if(t!=p.t) return t<p.t;
        return k>p.k;
    }
};

int N, K, Q, ans[MAXN+10], SZ, chk;
vector<Query> query;
multiset<int> S[MAXN+10];
set<int> scomp;
vector<int> comp;

int getcomp(int x)
{
    //for(auto it : comp) printf("%d ", it); printf("-> %d\n", x);
    assert(binary_search(comp.begin(), comp.end(), x));
    return lower_bound(comp.begin(), comp.end(), x)-comp.begin();
}

priority_queue<int, vector<int>, less<int>> tree1[5*MAXN+10];
priority_queue<int, vector<int>, less<int>> dead1[5*MAXN+10];

priority_queue<int, vector<int>, greater<int>> tree2[5*MAXN+10];
priority_queue<int, vector<int>, greater<int>> dead2[5*MAXN+10];

ll query1(int x)
{
    int y=x;
    x=getcomp(x);
    int ret=0;
    for(; x>0; x-=(x&-x))
    {
        while(!tree1[x].empty() && !dead1[x].empty() && tree1[x].top()==dead1[x].top()) tree1[x].pop(), dead1[x].pop();
        if(!tree1[x].empty())
        {
            ////printf("QUERY1 %d %d\n", x, tree1[x].top()-y);
            ret=max(ret, tree1[x].top()-y);
        }
    }
    return ret;
}

void erase1(int x, int y)
{
    ////printf("ERASE1 %d %d\n", x, y);
    x=getcomp(x);
    for(; x<=SZ; x+=(x&-x))
    {
        dead1[x].push(y);
    }
}

void insert1(int x, int y)
{
    //printf("INSERT1 %d %d\n", x, y);
    x=getcomp(x);
    for(; x<=SZ; x+=(x&-x))
    {
        tree1[x].push(y);
    }
}

ll query2(int x)
{
    int y=x;
    x=getcomp(x);
    x=SZ-x+1;
    int ret=0;
    for(; x>0; x-=(x&-x))
    {
        while(!tree2[x].empty() && !dead2[x].empty() && tree2[x].top()==dead2[x].top()) tree2[x].pop(), dead2[x].pop();
        if(!tree2[x].empty())
        {
            ////printf("QUERY1 %d %d\n", x, y-tree2[x].top());
            ret=max(ret, y-tree2[x].top());
        }
    }
    return ret;
}

void erase2(int x, int y)
{
    swap(x, y);
    ////printf("ERASE2 %d %d\n", x, y);
    x=getcomp(x);
    x=SZ-x+1;
    for(; x<=SZ; x+=(x&-x))
    {
        dead2[x].push(y);
    }
}

void insert2(int x, int y)
{
    //printf("INSERT2 %d %d\n", x, y);
    swap(x, y);
    x=getcomp(x);
    x=SZ-x+1;
    for(; x<=SZ; x+=(x&-x))
    {
        tree2[x].push(y);
    }
}

int main()
{
    int i, j;

    scanf("%d%d%d", &N, &K, &Q);
    for(i=1; i<=N; i++)
    {
        int x, t, a, b;
        scanf("%d%d%d%d", &x, &t, &a, &b); b++; x*=2;
        query.push_back({a, x, t, 1});
        query.push_back({b, x, t, -1});
        scomp.insert(x);
    }
    int last=0;
    for(i=1; i<=Q; i++)
    {
        int l, x;
        scanf("%d%d", &x, &l); x*=2;
        query.push_back({l, x, -i, 0});
        last=max(last, l);
        scomp.insert(x);
    }
    sort(query.begin(), query.end());

    scomp.insert(0); scomp.insert(2e8);
    for(auto now : query)
    {
        int x=now.x;
        if(now.p==1)
        {
            if(S[now.k].find(x)==S[now.k].end())
            {
                if(S[now.k].size()!=0)
                {
                    auto it=S[now.k].lower_bound(x);
                    int r=*it, l=*prev(it);
                    if(it==S[now.k].end()) scomp.insert(l+x>>1);
                    else if(it==S[now.k].begin()) scomp.insert(r+x>>1);
                    else
                    {
                        scomp.insert(l+x>>1);
                        scomp.insert(r+x>>1);
                    }
                }
            }
            S[now.k].insert(x);
        }
        else if(now.p==-1)
        {
            S[now.k].erase(S[now.k].find(x));
            if(S[now.k].find(x)==S[now.k].end())
            {
                if(S[now.k].size()!=0)
                {
                    auto it=S[now.k].lower_bound(x);
                    int r=*it, l=*prev(it);
                    if(it==S[now.k].end());
                    else if(it==S[now.k].begin());
                    else scomp.insert(l+r>>1);
                }
            }
        }
    }

    comp.push_back(-1);
    for(auto it : scomp) comp.push_back(it);
    SZ=scomp.size();

    for(i=1; i<=K; i++) S[i].clear();

    for(auto now : query)
    {
        //printf("===============\n");
        if(last<now.t) break;
        int x=now.x;
        if(now.p==0)
        {
            if(chk!=K) ans[-now.k]=-1;
            else ans[-now.k]=max(query1(x), query2(x))>>1;
            //printf("!%d %d %d\n", -now.k, query1(x), query2(x));
        }
        else if(now.p==1)
        {
            if(S[now.k].find(now.x)==S[now.k].end())
            {
                if(S[now.k].size()==0)
                {
                    insert1(0, x);
                    insert2(x, 2e8);
                    chk++;
                }
                else
                {
                    auto it=S[now.k].lower_bound(x);
                    int r=*it, l=*prev(it);
                    if(it==S[now.k].end())
                    {
                        erase2(l, 2e8);
                        insert2(l, l+x>>1);
                        insert1(l+x>>1, x);
                        insert2(x, 2e8);
                    }
                    else if(it==S[now.k].begin())
                    {
                        erase1(0, r);
                        insert1(0, x);
                        insert2(x, r+x>>1);
                        insert1(r+x>>1, r);
                    }
                    else
                    {
                        erase2(l, l+r>>1);
                        erase1(l+r>>1, r);
                        insert2(l, l+x>>1);
                        insert1(l+x>>1, x);
                        insert2(x, x+r>>1);
                        insert1(x+r>>1, r);
                    }
                }
            }
            S[now.k].insert(now.x);
        }
        else if(now.p==-1)
        {
            S[now.k].erase(S[now.k].find(now.x));
            if(S[now.k].find(now.x)==S[now.k].end())
            {
                if(S[now.k].size()==0)
                {
                    erase1(0, x);
                    erase2(x, 2e8);
                    chk--;
                }
                else
                {
                    auto it=S[now.k].lower_bound(x);
                    int r=*it, l=*prev(it);
                    if(it==S[now.k].end())
                    {
                        insert2(l, 2e8);
                        erase2(l, l+x>>1);
                        erase1(l+x>>1, x);
                        erase2(x, 2e8);
                    }
                    else if(it==S[now.k].begin())
                    {
                        insert1(0, r);
                        erase1(0, x);
                        erase2(x, r+x>>1);
                        erase1(r+x>>1, r);
                    }
                    else
                    {
                        insert2(l, l+r>>1);
                        insert1(l+r>>1, r);
                        erase2(l, l+x>>1);
                        erase1(l+x>>1, x);
                        erase2(x, x+r>>1);
                        erase1(x+r>>1, r);
                    }
                }
            }
        }
    }
    for(i=1; i<=Q; i++) printf("%d\n", ans[i]);
}

Compilation message

new_home.cpp:2:0: warning: ignoring #pragma gcc optimize [-Wunknown-pragmas]
 #pragma gcc optimize "03"
 
new_home.cpp: In function 'int main()':
new_home.cpp:156:58: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                     if(it==S[now.k].end()) scomp.insert(l+x>>1);
                                                         ~^~
new_home.cpp:157:65: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                     else if(it==S[now.k].begin()) scomp.insert(r+x>>1);
                                                                ~^~
new_home.cpp:160:39: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         scomp.insert(l+x>>1);
                                      ~^~
new_home.cpp:161:39: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         scomp.insert(r+x>>1);
                                      ~^~
new_home.cpp:178:40: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                     else scomp.insert(l+r>>1);
                                       ~^~
new_home.cpp:218:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(l, l+x>>1);
                                    ~^~
new_home.cpp:219:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(l+x>>1, x);
                                 ~^~
new_home.cpp:226:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(x, r+x>>1);
                                    ~^~
new_home.cpp:227:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(r+x>>1, r);
                                 ~^~
new_home.cpp:231:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(l, l+r>>1);
                                   ~^~
new_home.cpp:232:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(l+r>>1, r);
                                ~^~
new_home.cpp:233:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(l, l+x>>1);
                                    ~^~
new_home.cpp:234:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(l+x>>1, x);
                                 ~^~
new_home.cpp:235:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(x, x+r>>1);
                                    ~^~
new_home.cpp:236:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(x+r>>1, r);
                                 ~^~
new_home.cpp:260:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(l, l+x>>1);
                                   ~^~
new_home.cpp:261:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(l+x>>1, x);
                                ~^~
new_home.cpp:268:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(x, r+x>>1);
                                   ~^~
new_home.cpp:269:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(r+x>>1, r);
                                ~^~
new_home.cpp:273:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(l, l+r>>1);
                                    ~^~
new_home.cpp:274:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(l+r>>1, r);
                                 ~^~
new_home.cpp:275:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(l, l+x>>1);
                                   ~^~
new_home.cpp:276:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(l+x>>1, x);
                                ~^~
new_home.cpp:277:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(x, x+r>>1);
                                   ~^~
new_home.cpp:278:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(x+r>>1, r);
                                ~^~
new_home.cpp:122:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
new_home.cpp:124:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &N, &K, &Q);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:128:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d%d", &x, &t, &a, &b); b++; x*=2;
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:137:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &x, &l); x*=2;
         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 184 ms 202292 KB Output is correct
2 Correct 185 ms 202236 KB Output is correct
3 Correct 207 ms 202360 KB Output is correct
4 Correct 186 ms 202232 KB Output is correct
5 Correct 218 ms 202340 KB Output is correct
6 Correct 189 ms 202716 KB Output is correct
7 Correct 187 ms 202468 KB Output is correct
8 Correct 194 ms 202572 KB Output is correct
9 Correct 186 ms 202460 KB Output is correct
10 Correct 191 ms 202840 KB Output is correct
11 Correct 187 ms 202696 KB Output is correct
12 Correct 187 ms 202636 KB Output is correct
13 Correct 188 ms 202476 KB Output is correct
14 Correct 192 ms 202680 KB Output is correct
15 Correct 188 ms 202616 KB Output is correct
16 Correct 187 ms 202616 KB Output is correct
17 Correct 190 ms 202676 KB Output is correct
18 Correct 187 ms 202616 KB Output is correct
19 Correct 186 ms 202564 KB Output is correct
20 Correct 191 ms 202560 KB Output is correct
21 Correct 191 ms 202480 KB Output is correct
22 Correct 187 ms 202448 KB Output is correct
23 Correct 185 ms 202460 KB Output is correct
24 Correct 188 ms 202528 KB Output is correct
25 Correct 189 ms 202588 KB Output is correct
26 Correct 190 ms 202672 KB Output is correct
27 Correct 185 ms 202376 KB Output is correct
28 Correct 190 ms 202488 KB Output is correct
29 Correct 188 ms 202576 KB Output is correct
30 Correct 187 ms 202476 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 184 ms 202292 KB Output is correct
2 Correct 185 ms 202236 KB Output is correct
3 Correct 207 ms 202360 KB Output is correct
4 Correct 186 ms 202232 KB Output is correct
5 Correct 218 ms 202340 KB Output is correct
6 Correct 189 ms 202716 KB Output is correct
7 Correct 187 ms 202468 KB Output is correct
8 Correct 194 ms 202572 KB Output is correct
9 Correct 186 ms 202460 KB Output is correct
10 Correct 191 ms 202840 KB Output is correct
11 Correct 187 ms 202696 KB Output is correct
12 Correct 187 ms 202636 KB Output is correct
13 Correct 188 ms 202476 KB Output is correct
14 Correct 192 ms 202680 KB Output is correct
15 Correct 188 ms 202616 KB Output is correct
16 Correct 187 ms 202616 KB Output is correct
17 Correct 190 ms 202676 KB Output is correct
18 Correct 187 ms 202616 KB Output is correct
19 Correct 186 ms 202564 KB Output is correct
20 Correct 191 ms 202560 KB Output is correct
21 Correct 191 ms 202480 KB Output is correct
22 Correct 187 ms 202448 KB Output is correct
23 Correct 185 ms 202460 KB Output is correct
24 Correct 188 ms 202528 KB Output is correct
25 Correct 189 ms 202588 KB Output is correct
26 Correct 190 ms 202672 KB Output is correct
27 Correct 185 ms 202376 KB Output is correct
28 Correct 190 ms 202488 KB Output is correct
29 Correct 188 ms 202576 KB Output is correct
30 Correct 187 ms 202476 KB Output is correct
31 Correct 1891 ms 273628 KB Output is correct
32 Correct 296 ms 207452 KB Output is correct
33 Correct 1886 ms 274680 KB Output is correct
34 Correct 1835 ms 271668 KB Output is correct
35 Correct 1932 ms 275104 KB Output is correct
36 Correct 1934 ms 276872 KB Output is correct
37 Correct 1466 ms 272700 KB Output is correct
38 Correct 1573 ms 274068 KB Output is correct
39 Correct 1239 ms 272252 KB Output is correct
40 Correct 1313 ms 273268 KB Output is correct
41 Correct 1378 ms 251472 KB Output is correct
42 Correct 1355 ms 253116 KB Output is correct
43 Correct 264 ms 209500 KB Output is correct
44 Correct 1188 ms 251360 KB Output is correct
45 Correct 1231 ms 248148 KB Output is correct
46 Correct 1313 ms 240832 KB Output is correct
47 Correct 811 ms 250088 KB Output is correct
48 Correct 850 ms 251260 KB Output is correct
49 Correct 932 ms 251972 KB Output is correct
50 Correct 946 ms 252424 KB Output is correct
51 Correct 989 ms 250348 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4985 ms 410536 KB Output is correct
2 Execution timed out 5122 ms 436784 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5129 ms 438220 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 184 ms 202292 KB Output is correct
2 Correct 185 ms 202236 KB Output is correct
3 Correct 207 ms 202360 KB Output is correct
4 Correct 186 ms 202232 KB Output is correct
5 Correct 218 ms 202340 KB Output is correct
6 Correct 189 ms 202716 KB Output is correct
7 Correct 187 ms 202468 KB Output is correct
8 Correct 194 ms 202572 KB Output is correct
9 Correct 186 ms 202460 KB Output is correct
10 Correct 191 ms 202840 KB Output is correct
11 Correct 187 ms 202696 KB Output is correct
12 Correct 187 ms 202636 KB Output is correct
13 Correct 188 ms 202476 KB Output is correct
14 Correct 192 ms 202680 KB Output is correct
15 Correct 188 ms 202616 KB Output is correct
16 Correct 187 ms 202616 KB Output is correct
17 Correct 190 ms 202676 KB Output is correct
18 Correct 187 ms 202616 KB Output is correct
19 Correct 186 ms 202564 KB Output is correct
20 Correct 191 ms 202560 KB Output is correct
21 Correct 191 ms 202480 KB Output is correct
22 Correct 187 ms 202448 KB Output is correct
23 Correct 185 ms 202460 KB Output is correct
24 Correct 188 ms 202528 KB Output is correct
25 Correct 189 ms 202588 KB Output is correct
26 Correct 190 ms 202672 KB Output is correct
27 Correct 185 ms 202376 KB Output is correct
28 Correct 190 ms 202488 KB Output is correct
29 Correct 188 ms 202576 KB Output is correct
30 Correct 187 ms 202476 KB Output is correct
31 Correct 1891 ms 273628 KB Output is correct
32 Correct 296 ms 207452 KB Output is correct
33 Correct 1886 ms 274680 KB Output is correct
34 Correct 1835 ms 271668 KB Output is correct
35 Correct 1932 ms 275104 KB Output is correct
36 Correct 1934 ms 276872 KB Output is correct
37 Correct 1466 ms 272700 KB Output is correct
38 Correct 1573 ms 274068 KB Output is correct
39 Correct 1239 ms 272252 KB Output is correct
40 Correct 1313 ms 273268 KB Output is correct
41 Correct 1378 ms 251472 KB Output is correct
42 Correct 1355 ms 253116 KB Output is correct
43 Correct 264 ms 209500 KB Output is correct
44 Correct 1188 ms 251360 KB Output is correct
45 Correct 1231 ms 248148 KB Output is correct
46 Correct 1313 ms 240832 KB Output is correct
47 Correct 811 ms 250088 KB Output is correct
48 Correct 850 ms 251260 KB Output is correct
49 Correct 932 ms 251972 KB Output is correct
50 Correct 946 ms 252424 KB Output is correct
51 Correct 989 ms 250348 KB Output is correct
52 Correct 470 ms 231916 KB Output is correct
53 Correct 473 ms 230492 KB Output is correct
54 Correct 947 ms 251760 KB Output is correct
55 Correct 976 ms 246748 KB Output is correct
56 Correct 938 ms 243972 KB Output is correct
57 Correct 1377 ms 248668 KB Output is correct
58 Correct 1115 ms 246200 KB Output is correct
59 Correct 850 ms 243760 KB Output is correct
60 Correct 1097 ms 249308 KB Output is correct
61 Correct 257 ms 209788 KB Output is correct
62 Correct 488 ms 231924 KB Output is correct
63 Correct 770 ms 245956 KB Output is correct
64 Correct 897 ms 249376 KB Output is correct
65 Correct 1087 ms 252840 KB Output is correct
66 Correct 1158 ms 251836 KB Output is correct
67 Correct 398 ms 217948 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 184 ms 202292 KB Output is correct
2 Correct 185 ms 202236 KB Output is correct
3 Correct 207 ms 202360 KB Output is correct
4 Correct 186 ms 202232 KB Output is correct
5 Correct 218 ms 202340 KB Output is correct
6 Correct 189 ms 202716 KB Output is correct
7 Correct 187 ms 202468 KB Output is correct
8 Correct 194 ms 202572 KB Output is correct
9 Correct 186 ms 202460 KB Output is correct
10 Correct 191 ms 202840 KB Output is correct
11 Correct 187 ms 202696 KB Output is correct
12 Correct 187 ms 202636 KB Output is correct
13 Correct 188 ms 202476 KB Output is correct
14 Correct 192 ms 202680 KB Output is correct
15 Correct 188 ms 202616 KB Output is correct
16 Correct 187 ms 202616 KB Output is correct
17 Correct 190 ms 202676 KB Output is correct
18 Correct 187 ms 202616 KB Output is correct
19 Correct 186 ms 202564 KB Output is correct
20 Correct 191 ms 202560 KB Output is correct
21 Correct 191 ms 202480 KB Output is correct
22 Correct 187 ms 202448 KB Output is correct
23 Correct 185 ms 202460 KB Output is correct
24 Correct 188 ms 202528 KB Output is correct
25 Correct 189 ms 202588 KB Output is correct
26 Correct 190 ms 202672 KB Output is correct
27 Correct 185 ms 202376 KB Output is correct
28 Correct 190 ms 202488 KB Output is correct
29 Correct 188 ms 202576 KB Output is correct
30 Correct 187 ms 202476 KB Output is correct
31 Correct 1891 ms 273628 KB Output is correct
32 Correct 296 ms 207452 KB Output is correct
33 Correct 1886 ms 274680 KB Output is correct
34 Correct 1835 ms 271668 KB Output is correct
35 Correct 1932 ms 275104 KB Output is correct
36 Correct 1934 ms 276872 KB Output is correct
37 Correct 1466 ms 272700 KB Output is correct
38 Correct 1573 ms 274068 KB Output is correct
39 Correct 1239 ms 272252 KB Output is correct
40 Correct 1313 ms 273268 KB Output is correct
41 Correct 1378 ms 251472 KB Output is correct
42 Correct 1355 ms 253116 KB Output is correct
43 Correct 264 ms 209500 KB Output is correct
44 Correct 1188 ms 251360 KB Output is correct
45 Correct 1231 ms 248148 KB Output is correct
46 Correct 1313 ms 240832 KB Output is correct
47 Correct 811 ms 250088 KB Output is correct
48 Correct 850 ms 251260 KB Output is correct
49 Correct 932 ms 251972 KB Output is correct
50 Correct 946 ms 252424 KB Output is correct
51 Correct 989 ms 250348 KB Output is correct
52 Correct 4985 ms 410536 KB Output is correct
53 Execution timed out 5122 ms 436784 KB Time limit exceeded
54 Halted 0 ms 0 KB -