oj.uz

Submission #398219

# Submission time Handle Problem Language Result Execution time Memory
398219 2021-05-04T00:55:17 Z duality Golf (JOI17_golf) C++11
30 / 100
 2360 ms 677316 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; };
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;
vector<seg> hor,ver;
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[3000000];
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[3000000];
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 61 ms 120004 KB Output is correct
2 Correct 63 ms 119996 KB Output is correct
3 Correct 62 ms 119980 KB Output is correct
4 Correct 63 ms 120300 KB Output is correct
5 Correct 88 ms 123844 KB Output is correct
6 Correct 88 ms 123912 KB Output is correct
7 Correct 87 ms 123896 KB Output is correct
8 Correct 100 ms 123844 KB Output is correct
9 Correct 87 ms 123956 KB Output is correct
10 Correct 89 ms 123904 KB Output is correct
11 Correct 89 ms 124024 KB Output is correct
12 Correct 87 ms 123972 KB Output is correct
13 Correct 92 ms 124048 KB Output is correct
14 Correct 87 ms 123900 KB Output is correct
15 Correct 71 ms 121404 KB Output is correct
16 Correct 83 ms 123256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 120004 KB Output is correct
2 Correct 63 ms 119996 KB Output is correct
3 Correct 62 ms 119980 KB Output is correct
4 Correct 63 ms 120300 KB Output is correct
5 Correct 88 ms 123844 KB Output is correct
6 Correct 88 ms 123912 KB Output is correct
7 Correct 87 ms 123896 KB Output is correct
8 Correct 100 ms 123844 KB Output is correct
9 Correct 87 ms 123956 KB Output is correct
10 Correct 89 ms 123904 KB Output is correct
11 Correct 89 ms 124024 KB Output is correct
12 Correct 87 ms 123972 KB Output is correct
13 Correct 92 ms 124048 KB Output is correct
14 Correct 87 ms 123900 KB Output is correct
15 Correct 71 ms 121404 KB Output is correct
16 Correct 83 ms 123256 KB Output is correct
17 Correct 91 ms 124036 KB Output is correct
18 Correct 92 ms 124180 KB Output is correct
19 Correct 87 ms 124036 KB Output is correct
20 Correct 88 ms 124228 KB Output is correct
21 Correct 87 ms 124056 KB Output is correct
22 Correct 98 ms 124100 KB Output is correct
23 Correct 89 ms 124100 KB Output is correct
24 Correct 88 ms 123980 KB Output is correct
25 Correct 88 ms 124100 KB Output is correct
26 Correct 88 ms 124100 KB Output is correct
27 Correct 73 ms 121672 KB Output is correct
28 Correct 88 ms 123588 KB Output is correct
29 Correct 88 ms 123716 KB Output is correct

Subtask #3
0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 120004 KB Output is correct
2 Correct 63 ms 119996 KB Output is correct
3 Correct 62 ms 119980 KB Output is correct
4 Correct 63 ms 120300 KB Output is correct
5 Correct 88 ms 123844 KB Output is correct
6 Correct 88 ms 123912 KB Output is correct
7 Correct 87 ms 123896 KB Output is correct
8 Correct 100 ms 123844 KB Output is correct
9 Correct 87 ms 123956 KB Output is correct
10 Correct 89 ms 123904 KB Output is correct
11 Correct 89 ms 124024 KB Output is correct
12 Correct 87 ms 123972 KB Output is correct
13 Correct 92 ms 124048 KB Output is correct
14 Correct 87 ms 123900 KB Output is correct
15 Correct 71 ms 121404 KB Output is correct
16 Correct 83 ms 123256 KB Output is correct
17 Correct 91 ms 124036 KB Output is correct
18 Correct 92 ms 124180 KB Output is correct
19 Correct 87 ms 124036 KB Output is correct
20 Correct 88 ms 124228 KB Output is correct
21 Correct 87 ms 124056 KB Output is correct
22 Correct 98 ms 124100 KB Output is correct
23 Correct 89 ms 124100 KB Output is correct
24 Correct 88 ms 123980 KB Output is correct
25 Correct 88 ms 124100 KB Output is correct
26 Correct 88 ms 124100 KB Output is correct
27 Correct 73 ms 121672 KB Output is correct
28 Correct 88 ms 123588 KB Output is correct
29 Correct 88 ms 123716 KB Output is correct
30 Runtime error 2360 ms 677316 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -