oj.uz

Submission #398223

# Submission time Handle Problem Language Result Execution time Memory
398223 2021-05-04T01:00:59 Z duality Golf (JOI17_golf) C++11
30 / 100
 1167 ms 1048580 KB 
#define DEBUG 0

#include <bits/stdc++.h>
using namespace std;

#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}

// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
    public:
        template<typename T>
        _Debug& operator,(T val) {
            cout << val << endl;
            return *this;
        }
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif

// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back

// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;

// ---------- END OF TEMPLATE ----------

int A[100000],B[100000],C[100000],D[100000];
struct seg { int z,l,r; };
vector<seg> hor,ver;
struct seg2 { int z,l,r,t; };
bool comp(seg2 a,seg2 b) {
    if (a.z == b.z) return a.t < b.t;
    else return a.z < b.z;
}
vector<seg2> events;
set<pii> SS;
vi vv;
vpii events2;
vpii tree[1 << 20];
int update(int s,int e,int ai,int i,int t,int u) {
    if ((s > ai) || (e < ai)) return 0;
    else if (s == e) {
        tree[i].pb(mp(t,u));
        return 0;
    }

    int mid = (s+e) / 2;
    update(s,mid,ai,2*i+1,t,u),update(mid+1,e,ai,2*i+2,t,u);
    tree[i].pb(mp(t,u));
    return 0;
}
int add(int s,int e,int as,int ae,int i,int u) {
    if ((s > ae) || (e < as)) return 0;
    else if ((s >= as) && (e <= ae)) {
        tree[i].pb(mp(0,u));
        return 0;
    }

    int mid = (s+e) / 2;
    add(s,mid,as,ae,2*i+1,u),add(mid+1,e,as,ae,2*i+2,u);
    return 0;
}
vi adjList[40000000];
int num;
int pos[600000];
vi tree2[1 << 20];
int node[1 << 20],node2[1 << 20];
int update2(int s,int e,int as,int ae,int i,int u) {
    if ((s > ae) || (e < as)) return 0;
    else if ((s >= as) && (e <= ae)) {
        tree2[i].pb(u);
        return 0;
    }

    int mid = (s+e) / 2;
    update2(s,mid,as,ae,2*i+1,u),update2(mid+1,e,as,ae,2*i+2,u);
    return 0;
}
int build(int s,int e,int i) {
    if (s == e) {
        if (!tree2[i].empty()) {
            int j;
            node[i] = num++,node2[i] = num++;
            for (j = 0; j < tree2[i].size(); j++) adjList[node[i]].pb(tree2[i][j]),adjList[tree2[i][j]].pb(node2[i]);
        }
        return 0;
    }

    int mid = (s+e) / 2;
    build(s,mid,2*i+1),build(mid+1,e,2*i+2);
    if (!tree2[i].empty()) {
        int j;
        node[i] = num++,node2[i] = num++;
        for (j = 0; j < tree2[i].size(); j++) adjList[node[i]].pb(tree2[i][j]),adjList[tree2[i][j]].pb(node2[i]);
    }
    return 0;
}
int add2(int s,int e,int ai,int i,int u) {
    if ((s > ai) || (e < ai)) return 0;
    else if (s == e) {
        if (!tree2[i].empty()) adjList[u].pb(node[i]),adjList[node2[i]].pb(u);
        return 0;
    }

    int mid = (s+e) / 2;
    add2(s,mid,ai,2*i+1,u),add2(mid+1,e,ai,2*i+2,u);
    if (!tree2[i].empty()) adjList[u].pb(node[i]),adjList[node2[i]].pb(u);
    return 0;
}
int clear(int s,int e,int i) {
    if (s == e) {
        tree2[i].clear();
        return 0;
    }

    int mid = (s+e) / 2;
    clear(s,mid,2*i+1),clear(mid+1,e,2*i+2);
    tree2[i].clear();
    return 0;
}
int process(vpii &v) {
    if (v.empty()) return 0;
    int i;
    for (i = 0; i < v.size(); i++) {
        if (v[i].first == 1) pos[v[i].second] = i;
        else if (v[i].first == -1) update2(0,v.size()-1,pos[v[i].second],i,0,v[i].second);
    }
    build(0,v.size()-1,0);
    for (i = 0; i < v.size(); i++) {
        if (v[i].first == 0) add2(0,v.size()-1,i,0,v[i].second);
    }
    clear(0,v.size()-1,0),v.clear();
    return 0;
}
int process(int s,int e,int i) {
    if (s == e) {
        process(tree[i]);
        return 0;
    }

    int mid = (s+e) / 2;
    process(s,mid,2*i+1),process(mid+1,e,2*i+2);
    process(tree[i]);
    return 0;
}
int dist[40000000];
queue<int> Q;
int main() {
    int i;
    int N,S,T,U,V;
    scanf("%d %d %d %d %d",&S,&T,&U,&V,&N);
    for (i = 0; i < N; i++) scanf("%d %d %d %d",&A[i],&B[i],&C[i],&D[i]);

    for (i = 0; i < N; i++) {
        events.pb((seg2){C[i],A[i],B[i],1});
        events.pb((seg2){D[i],A[i],B[i],-1});
    }
    events.pb((seg2){T,S,S,0});
    events.pb((seg2){V,U,U,0});
    sort(events.begin(),events.end(),comp);
    SS.insert(mp(2e9,2e9));
    SS.insert(mp(-2e9,-2e9));
    for (i = 0; i < events.size(); i++) {
        if (events[i].t == -1) SS.erase(mp(events[i].l,events[i].r));
        auto it = SS.lower_bound(mp(events[i].l,0));
        auto it2 = it;
        it--;
        hor.pb((seg){events[i].z,it->second,it2->first}),vv.pb(events[i].z);
        if (events[i].t == 1) SS.insert(mp(events[i].l,events[i].r));
    }
    events.clear();
    for (i = 0; i < N; i++) {
        events.pb((seg2){A[i],C[i],D[i],1});
        events.pb((seg2){B[i],C[i],D[i],-1});
    }
    events.pb((seg2){S,T,T,0});
    events.pb((seg2){U,V,V,0});
    sort(events.begin(),events.end(),comp);
    for (i = 0; i < events.size(); i++) {
        if (events[i].t == -1) SS.erase(mp(events[i].l,events[i].r));
        auto it = SS.lower_bound(mp(events[i].l,0));
        auto it2 = it;
        it--;
        ver.pb((seg){events[i].z,it->second,it2->first});
        if (events[i].t == 1) SS.insert(mp(events[i].l,events[i].r));
    }

    sort(vv.begin(),vv.end());
    vv.resize(unique(vv.begin(),vv.end())-vv.begin());
    for (i = 0; i < hor.size(); i++) events2.pb(mp(hor[i].l,-(i+ver.size()+1))),events2.pb(mp(hor[i].r,i+ver.size()+1));
    for (i = 0; i < ver.size(); i++) events2.pb(mp(ver[i].z,-(i+1)));
    sort(events2.begin(),events2.end());
    for (i = 0; i < events2.size(); i++) {
        if (events2[i].second < -(int) ver.size()) {
            int u = -events2[i].second-1;
            int p = lower_bound(vv.begin(),vv.end(),hor[u-ver.size()].z)-vv.begin();
            update(0,vv.size()-1,p,0,1,u);
        }
        else if (events2[i].second < 0) {
            int u = -events2[i].second-1;
            int p = lower_bound(vv.begin(),vv.end(),ver[u].l)-vv.begin();
            int q = upper_bound(vv.begin(),vv.end(),ver[u].r)-vv.begin()-1;
            add(0,vv.size()-1,p,q,0,u);
        }
        else {
            int u = events2[i].second-1;
            int p = lower_bound(vv.begin(),vv.end(),hor[u-ver.size()].z)-vv.begin();
            update(0,vv.size()-1,p,0,-1,u);
        }
    }
    num = hor.size()+ver.size();
    process(0,vv.size()-1,0);

    for (i = 0; i < num; i++) dist[i] = -1;
    for (i = 0; i < ver.size(); i++) {
        if ((ver[i].z == S) && (ver[i].l <= T) && (ver[i].r >= T)) dist[i] = 0,Q.push(i);
    }
    for (i = 0; i < hor.size(); i++) {
        if ((hor[i].z == T) && (hor[i].l <= S) && (hor[i].r >= S)) dist[i+ver.size()] = 0,Q.push(i+ver.size());
    }
    while (!Q.empty()) {
        int u = Q.front();
        Q.pop();

        for (i = 0; i < adjList[u].size(); i++) {
            int v = adjList[u][i];
            if (dist[v] == -1) dist[v] = dist[u]+1,Q.push(v);
        }
    }
    int ans = 1e9;
    for (i = 0; i < ver.size(); i++) {
        if ((ver[i].z == U) && (ver[i].l <= V) && (ver[i].r >= V)) ans = min(ans,dist[i]);
    }
    for (i = 0; i < hor.size(); i++) {
        if ((hor[i].z == V) && (hor[i].l <= U) && (hor[i].r >= U)) ans = min(ans,dist[i+ver.size()]);
    }
    printf("%d\n",ans/2+1);

    return 0;
}

Compilation message

golf.cpp: In function 'int build(int, int, int)':
golf.cpp:115:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  115 |             for (j = 0; j < tree2[i].size(); j++) adjList[node[i]].pb(tree2[i][j]),adjList[tree2[i][j]].pb(node2[i]);
      |                         ~~^~~~~~~~~~~~~~~~~
golf.cpp:125:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  125 |         for (j = 0; j < tree2[i].size(); j++) adjList[node[i]].pb(tree2[i][j]),adjList[tree2[i][j]].pb(node2[i]);
      |                     ~~^~~~~~~~~~~~~~~~~
golf.cpp: In function 'int process(vpii&)':
golf.cpp:155:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  155 |     for (i = 0; i < v.size(); i++) {
      |                 ~~^~~~~~~~~~
golf.cpp:160:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  160 |     for (i = 0; i < v.size(); i++) {
      |                 ~~^~~~~~~~~~
golf.cpp: In function 'int main()':
golf.cpp:194:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seg2>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  194 |     for (i = 0; i < events.size(); i++) {
      |                 ~~^~~~~~~~~~~~~~~
golf.cpp:210:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seg2>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  210 |     for (i = 0; i < events.size(); i++) {
      |                 ~~^~~~~~~~~~~~~~~
golf.cpp:221:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seg>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  221 |     for (i = 0; i < hor.size(); i++) events2.pb(mp(hor[i].l,-(i+ver.size()+1))),events2.pb(mp(hor[i].r,i+ver.size()+1));
      |                 ~~^~~~~~~~~~~~
golf.cpp:222:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seg>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  222 |     for (i = 0; i < ver.size(); i++) events2.pb(mp(ver[i].z,-(i+1)));
      |                 ~~^~~~~~~~~~~~
golf.cpp:224:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  224 |     for (i = 0; i < events2.size(); i++) {
      |                 ~~^~~~~~~~~~~~~~~~
golf.cpp:246:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seg>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  246 |     for (i = 0; i < ver.size(); i++) {
      |                 ~~^~~~~~~~~~~~
golf.cpp:249:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seg>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  249 |     for (i = 0; i < hor.size(); i++) {
      |                 ~~^~~~~~~~~~~~
golf.cpp:256:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  256 |         for (i = 0; i < adjList[u].size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~~~~~
golf.cpp:262:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seg>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  262 |     for (i = 0; i < ver.size(); i++) {
      |                 ~~^~~~~~~~~~~~
golf.cpp:265:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<seg>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  265 |     for (i = 0; i < hor.size(); i++) {
      |                 ~~^~~~~~~~~~~~
golf.cpp:182:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  182 |     scanf("%d %d %d %d %d",&S,&T,&U,&V,&N);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
golf.cpp:183:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  183 |     for (i = 0; i < N; i++) scanf("%d %d %d %d",&A[i],&B[i],&C[i],&D[i]);
      |                             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 730 ms 988904 KB Output is correct
2 Correct 632 ms 988904 KB Output is correct
3 Correct 579 ms 988872 KB Output is correct
4 Correct 578 ms 989228 KB Output is correct
5 Correct 614 ms 992740 KB Output is correct
6 Correct 615 ms 992696 KB Output is correct
7 Correct 628 ms 992784 KB Output is correct
8 Correct 610 ms 992712 KB Output is correct
9 Correct 610 ms 992752 KB Output is correct
10 Correct 611 ms 992960 KB Output is correct
11 Correct 609 ms 992976 KB Output is correct
12 Correct 609 ms 992980 KB Output is correct
13 Correct 604 ms 992836 KB Output is correct
14 Correct 633 ms 992852 KB Output is correct
15 Correct 591 ms 990412 KB Output is correct
16 Correct 605 ms 992280 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 730 ms 988904 KB Output is correct
2 Correct 632 ms 988904 KB Output is correct
3 Correct 579 ms 988872 KB Output is correct
4 Correct 578 ms 989228 KB Output is correct
5 Correct 614 ms 992740 KB Output is correct
6 Correct 615 ms 992696 KB Output is correct
7 Correct 628 ms 992784 KB Output is correct
8 Correct 610 ms 992712 KB Output is correct
9 Correct 610 ms 992752 KB Output is correct
10 Correct 611 ms 992960 KB Output is correct
11 Correct 609 ms 992976 KB Output is correct
12 Correct 609 ms 992980 KB Output is correct
13 Correct 604 ms 992836 KB Output is correct
14 Correct 633 ms 992852 KB Output is correct
15 Correct 591 ms 990412 KB Output is correct
16 Correct 605 ms 992280 KB Output is correct
17 Correct 612 ms 993068 KB Output is correct
18 Correct 603 ms 993120 KB Output is correct
19 Correct 609 ms 993092 KB Output is correct
20 Correct 603 ms 993160 KB Output is correct
21 Correct 618 ms 993200 KB Output is correct
22 Correct 614 ms 993004 KB Output is correct
23 Correct 608 ms 993096 KB Output is correct
24 Correct 629 ms 993036 KB Output is correct
25 Correct 670 ms 993088 KB Output is correct
26 Correct 618 ms 993200 KB Output is correct
27 Correct 602 ms 990692 KB Output is correct
28 Correct 619 ms 992604 KB Output is correct
29 Correct 614 ms 992708 KB Output is correct

Subtask #3
0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 730 ms 988904 KB Output is correct
2 Correct 632 ms 988904 KB Output is correct
3 Correct 579 ms 988872 KB Output is correct
4 Correct 578 ms 989228 KB Output is correct
5 Correct 614 ms 992740 KB Output is correct
6 Correct 615 ms 992696 KB Output is correct
7 Correct 628 ms 992784 KB Output is correct
8 Correct 610 ms 992712 KB Output is correct
9 Correct 610 ms 992752 KB Output is correct
10 Correct 611 ms 992960 KB Output is correct
11 Correct 609 ms 992976 KB Output is correct
12 Correct 609 ms 992980 KB Output is correct
13 Correct 604 ms 992836 KB Output is correct
14 Correct 633 ms 992852 KB Output is correct
15 Correct 591 ms 990412 KB Output is correct
16 Correct 605 ms 992280 KB Output is correct
17 Correct 612 ms 993068 KB Output is correct
18 Correct 603 ms 993120 KB Output is correct
19 Correct 609 ms 993092 KB Output is correct
20 Correct 603 ms 993160 KB Output is correct
21 Correct 618 ms 993200 KB Output is correct
22 Correct 614 ms 993004 KB Output is correct
23 Correct 608 ms 993096 KB Output is correct
24 Correct 629 ms 993036 KB Output is correct
25 Correct 670 ms 993088 KB Output is correct
26 Correct 618 ms 993200 KB Output is correct
27 Correct 602 ms 990692 KB Output is correct
28 Correct 619 ms 992604 KB Output is correct
29 Correct 614 ms 992708 KB Output is correct
30 Runtime error 1167 ms 1048580 KB Execution killed with signal 9
31 Halted 0 ms 0 KB -