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Submission #159484

# Submission time Handle Problem Language Result Execution time Memory
159484 2019-10-23T00:43:22 Z arnold518 New Home (APIO18_new_home) C++14
5 / 100
 5000 ms 538648 KB 
#include <bits/stdc++.h>
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[4*MAXN+10];
priority_queue<int, vector<int>, less<int>> dead1[4*MAXN+10];

priority_queue<int, vector<int>, greater<int>> tree2[4*MAXN+10];
priority_queue<int, vector<int>, greater<int>> dead2[4*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);
    }
    for(i=1; i<=Q; i++)
    {
        int l, x;
        scanf("%d%d", &x, &l); x*=2;
        query.push_back({l, x, -i, 0});
        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(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=comp.size()-1;

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

    for(auto now : query)
    {
        //printf("===============\n");
        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: In function 'int main()':
new_home.cpp:153:58: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                     if(it==S[now.k].end()) scomp.insert(l+x>>1);
                                                         ~^~
new_home.cpp:154:65: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                     else if(it==S[now.k].begin()) scomp.insert(r+x>>1);
                                                                ~^~
new_home.cpp:157:39: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         scomp.insert(l+x>>1);
                                      ~^~
new_home.cpp:158:39: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         scomp.insert(r+x>>1);
                                      ~^~
new_home.cpp:175:40: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                     else scomp.insert(l+r>>1);
                                       ~^~
new_home.cpp:214:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(l, l+x>>1);
                                    ~^~
new_home.cpp:215:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(l+x>>1, x);
                                 ~^~
new_home.cpp:222:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(x, r+x>>1);
                                    ~^~
new_home.cpp:223:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(r+x>>1, r);
                                 ~^~
new_home.cpp:227:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(l, l+r>>1);
                                   ~^~
new_home.cpp:228:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(l+r>>1, r);
                                ~^~
new_home.cpp:229:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(l, l+x>>1);
                                    ~^~
new_home.cpp:230:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(l+x>>1, x);
                                 ~^~
new_home.cpp:231:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(x, x+r>>1);
                                    ~^~
new_home.cpp:232:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(x+r>>1, r);
                                 ~^~
new_home.cpp:256:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(l, l+x>>1);
                                   ~^~
new_home.cpp:257:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(l+x>>1, x);
                                ~^~
new_home.cpp:264:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(x, r+x>>1);
                                   ~^~
new_home.cpp:265:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(r+x>>1, r);
                                ~^~
new_home.cpp:269:37: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert2(l, l+r>>1);
                                    ~^~
new_home.cpp:270:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         insert1(l+r>>1, r);
                                 ~^~
new_home.cpp:271:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(l, l+x>>1);
                                   ~^~
new_home.cpp:272:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(l+x>>1, x);
                                ~^~
new_home.cpp:273:36: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase2(x, x+r>>1);
                                   ~^~
new_home.cpp:274:33: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                         erase1(x+r>>1, r);
                                ~^~
new_home.cpp:121:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
new_home.cpp:123:10: 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:127:14: 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:135:14: 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 149 ms 164728 KB Output is correct
2 Correct 150 ms 164852 KB Output is correct
3 Correct 148 ms 164728 KB Output is correct
4 Correct 148 ms 164728 KB Output is correct
5 Correct 149 ms 164832 KB Output is correct
6 Correct 152 ms 165112 KB Output is correct
7 Correct 150 ms 164984 KB Output is correct
8 Correct 151 ms 164984 KB Output is correct
9 Correct 149 ms 164924 KB Output is correct
10 Correct 155 ms 165112 KB Output is correct
11 Correct 151 ms 164984 KB Output is correct
12 Correct 168 ms 165188 KB Output is correct
13 Correct 149 ms 164868 KB Output is correct
14 Correct 175 ms 164984 KB Output is correct
15 Correct 151 ms 165032 KB Output is correct
16 Correct 154 ms 165092 KB Output is correct
17 Correct 179 ms 164956 KB Output is correct
18 Correct 176 ms 164984 KB Output is correct
19 Correct 172 ms 165076 KB Output is correct
20 Correct 151 ms 165128 KB Output is correct
21 Correct 148 ms 164856 KB Output is correct
22 Correct 150 ms 164856 KB Output is correct
23 Correct 151 ms 164984 KB Output is correct
24 Correct 152 ms 165160 KB Output is correct
25 Correct 152 ms 164984 KB Output is correct
26 Correct 154 ms 165088 KB Output is correct
27 Correct 152 ms 164856 KB Output is correct
28 Correct 153 ms 164904 KB Output is correct
29 Correct 153 ms 164948 KB Output is correct
30 Correct 153 ms 164956 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 164728 KB Output is correct
2 Correct 150 ms 164852 KB Output is correct
3 Correct 148 ms 164728 KB Output is correct
4 Correct 148 ms 164728 KB Output is correct
5 Correct 149 ms 164832 KB Output is correct
6 Correct 152 ms 165112 KB Output is correct
7 Correct 150 ms 164984 KB Output is correct
8 Correct 151 ms 164984 KB Output is correct
9 Correct 149 ms 164924 KB Output is correct
10 Correct 155 ms 165112 KB Output is correct
11 Correct 151 ms 164984 KB Output is correct
12 Correct 168 ms 165188 KB Output is correct
13 Correct 149 ms 164868 KB Output is correct
14 Correct 175 ms 164984 KB Output is correct
15 Correct 151 ms 165032 KB Output is correct
16 Correct 154 ms 165092 KB Output is correct
17 Correct 179 ms 164956 KB Output is correct
18 Correct 176 ms 164984 KB Output is correct
19 Correct 172 ms 165076 KB Output is correct
20 Correct 151 ms 165128 KB Output is correct
21 Correct 148 ms 164856 KB Output is correct
22 Correct 150 ms 164856 KB Output is correct
23 Correct 151 ms 164984 KB Output is correct
24 Correct 152 ms 165160 KB Output is correct
25 Correct 152 ms 164984 KB Output is correct
26 Correct 154 ms 165088 KB Output is correct
27 Correct 152 ms 164856 KB Output is correct
28 Correct 153 ms 164904 KB Output is correct
29 Correct 153 ms 164948 KB Output is correct
30 Correct 153 ms 164956 KB Output is correct
31 Correct 1863 ms 238300 KB Output is correct
32 Correct 259 ms 170076 KB Output is correct
33 Correct 1861 ms 239436 KB Output is correct
34 Correct 1743 ms 236328 KB Output is correct
35 Correct 1891 ms 239636 KB Output is correct
36 Correct 1904 ms 241328 KB Output is correct
37 Runtime error 1604 ms 474716 KB Execution killed with signal 11 (could be triggered by violating memory limits)
38 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5129 ms 426076 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 2561 ms 538648 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 164728 KB Output is correct
2 Correct 150 ms 164852 KB Output is correct
3 Correct 148 ms 164728 KB Output is correct
4 Correct 148 ms 164728 KB Output is correct
5 Correct 149 ms 164832 KB Output is correct
6 Correct 152 ms 165112 KB Output is correct
7 Correct 150 ms 164984 KB Output is correct
8 Correct 151 ms 164984 KB Output is correct
9 Correct 149 ms 164924 KB Output is correct
10 Correct 155 ms 165112 KB Output is correct
11 Correct 151 ms 164984 KB Output is correct
12 Correct 168 ms 165188 KB Output is correct
13 Correct 149 ms 164868 KB Output is correct
14 Correct 175 ms 164984 KB Output is correct
15 Correct 151 ms 165032 KB Output is correct
16 Correct 154 ms 165092 KB Output is correct
17 Correct 179 ms 164956 KB Output is correct
18 Correct 176 ms 164984 KB Output is correct
19 Correct 172 ms 165076 KB Output is correct
20 Correct 151 ms 165128 KB Output is correct
21 Correct 148 ms 164856 KB Output is correct
22 Correct 150 ms 164856 KB Output is correct
23 Correct 151 ms 164984 KB Output is correct
24 Correct 152 ms 165160 KB Output is correct
25 Correct 152 ms 164984 KB Output is correct
26 Correct 154 ms 165088 KB Output is correct
27 Correct 152 ms 164856 KB Output is correct
28 Correct 153 ms 164904 KB Output is correct
29 Correct 153 ms 164948 KB Output is correct
30 Correct 153 ms 164956 KB Output is correct
31 Correct 1863 ms 238300 KB Output is correct
32 Correct 259 ms 170076 KB Output is correct
33 Correct 1861 ms 239436 KB Output is correct
34 Correct 1743 ms 236328 KB Output is correct
35 Correct 1891 ms 239636 KB Output is correct
36 Correct 1904 ms 241328 KB Output is correct
37 Runtime error 1604 ms 474716 KB Execution killed with signal 11 (could be triggered by violating memory limits)
38 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 164728 KB Output is correct
2 Correct 150 ms 164852 KB Output is correct
3 Correct 148 ms 164728 KB Output is correct
4 Correct 148 ms 164728 KB Output is correct
5 Correct 149 ms 164832 KB Output is correct
6 Correct 152 ms 165112 KB Output is correct
7 Correct 150 ms 164984 KB Output is correct
8 Correct 151 ms 164984 KB Output is correct
9 Correct 149 ms 164924 KB Output is correct
10 Correct 155 ms 165112 KB Output is correct
11 Correct 151 ms 164984 KB Output is correct
12 Correct 168 ms 165188 KB Output is correct
13 Correct 149 ms 164868 KB Output is correct
14 Correct 175 ms 164984 KB Output is correct
15 Correct 151 ms 165032 KB Output is correct
16 Correct 154 ms 165092 KB Output is correct
17 Correct 179 ms 164956 KB Output is correct
18 Correct 176 ms 164984 KB Output is correct
19 Correct 172 ms 165076 KB Output is correct
20 Correct 151 ms 165128 KB Output is correct
21 Correct 148 ms 164856 KB Output is correct
22 Correct 150 ms 164856 KB Output is correct
23 Correct 151 ms 164984 KB Output is correct
24 Correct 152 ms 165160 KB Output is correct
25 Correct 152 ms 164984 KB Output is correct
26 Correct 154 ms 165088 KB Output is correct
27 Correct 152 ms 164856 KB Output is correct
28 Correct 153 ms 164904 KB Output is correct
29 Correct 153 ms 164948 KB Output is correct
30 Correct 153 ms 164956 KB Output is correct
31 Correct 1863 ms 238300 KB Output is correct
32 Correct 259 ms 170076 KB Output is correct
33 Correct 1861 ms 239436 KB Output is correct
34 Correct 1743 ms 236328 KB Output is correct
35 Correct 1891 ms 239636 KB Output is correct
36 Correct 1904 ms 241328 KB Output is correct
37 Runtime error 1604 ms 474716 KB Execution killed with signal 11 (could be triggered by violating memory limits)
38 Halted 0 ms 0 KB -