답안 #95876 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
95876	2019-02-03T10:02:18 Z	easrui	절취선 (JOI14_ho_t5)	C++14	10 / 100	470 ms	263168 KB

2014_ho_t5

#include <bits/stdc++.h>
#define sz first
#define col second
using namespace std;
const int MN = 1e5+9;
typedef pair<int,int> pii;
struct line{
    int A,B,C,D;
    line(){};
    line(int a, int b, int c, int d){
        A = a, B = b , C = c, D = d;
    }
} L[MN];

struct event{
    int s,e,t,v;
    event(){};
    event(int a, int b, int c, int d){
        s = a, e = b, t = c, v = d;
    }
    bool operator < (const event &A) const{
        if(t==A.t){
            return A.v<v;
        }
        return t<A.t;
    }
} E[2*MN];

int W,H,N,A,B,C,D,par[MN],cnt,comp,nume;
long long inter;
bool ch[MN];
pii T[4*MN];
vector<int> X,Y;

int fnd(int a)
{
    return par[a]==a ? a : par[a] = fnd(par[a]);
}

void join(int a, int b)
{
    if(a==0 || b==0) return;
    a = fnd(a), b = fnd(b);
    if(a!=b) par[b] = a;
}

void upt(int x, int v, int s, int e, int pos)
{
    if(x<s || x>e) return;
    int c = T[pos].col;
    if(c){
        if(s!=e){
            if(T[2*pos].sz) join(T[2*pos].col,c);
            if(T[2*pos+1].sz) join(T[2*pos+1].col,c);
     		T[2*pos].col = c;
        	T[2*pos+1].col = c;
        }
        T[pos].col = 0;
    }
    if(s==e){
      	if(v==-1 && !c) comp++;
        T[pos].sz += v;
        return;
    }
    int m = (s+e)/2;
    upt(x,v,s,m,2*pos);
    upt(x,v,m+1,e,2*pos+1);
    T[pos].sz = T[2*pos].sz + T[2*pos+1].sz;
}

int sum(int l, int r, int s, int e, int pos)
{
    if(r<s || e<l) return 0;
    if(l<=s && e<=r) return T[pos].sz;
    int m = (s+e)/2;
    return sum(l,r,s,m,2*pos)+sum(l,r,m+1,e,2*pos+1);
}

void act(int l, int r, int s, int e, int pos)
{
    if(r<s || l>e) return;
    int c = T[pos].col;
    if(c){
        if(s!=e){
            if(T[2*pos].sz) join(T[2*pos].col,c);
            if(T[2*pos+1].sz) join(T[2*pos+1].col,c);
     		T[2*pos].col = c;
        	T[2*pos+1].col = c;
        	T[pos].col = 0;
        }
    }
    if(l<=s && e<=r){
        if(T[pos].sz) join(c,cnt);
        T[pos].col = cnt;
        return;
    }
    int m = (s+e)/2;
    act(l,r,s,m,2*pos);
    act(l,r,m+1,e,2*pos+1);
}

int main()
{
    //freopen("input.txt","r",stdin);
    cin >> W >> H >> N;
    for(int i=0; i<N; i++){
        cin >> A >> B >> C >> D;
        if(A>C) swap(A,C);
        if(B>D) swap(B,D);
        L[i] = line(A,B,C,D);
        X.push_back(A);
        X.push_back(C);
        Y.push_back(B);
        Y.push_back(D);
    }
    L[N] = line(0,0,0,H);
    L[N+1] = line(0,0,W,0);
    L[N+2] = line(0,H,W,H);
    L[N+3] = line(W,0,W,H);
    X.push_back(0);
    X.push_back(W);
    Y.push_back(0);
    Y.push_back(H);
    sort(X.begin(),X.end());
    sort(Y.begin(),Y.end());
    X.erase(unique(X.begin(),X.end()),X.end());
    Y.erase(unique(Y.begin(),Y.end()),Y.end());
    nume = N+4;
    for(int i=0; i<N+4; i++){
        L[i].A = lower_bound(X.begin(),X.end(),L[i].A)-X.begin();
        L[i].C = lower_bound(X.begin(),X.end(),L[i].C)-X.begin();
        L[i].B = lower_bound(Y.begin(),Y.end(),L[i].B)-Y.begin();
        L[i].D = lower_bound(Y.begin(),Y.end(),L[i].D)-Y.begin();
        if(L[i].C!=L[i].A){
            E[i] = event(L[i].B,L[i].D,L[i].A,1);
            E[nume++] = event(L[i].B,L[i].D,L[i].C,-1);
        } else E[i] = event(L[i].B,L[i].D,L[i].C,0);
    }
    sort(E,E+nume);
    for(int i=0; i<nume; i++){
        if(E[i].v) upt(E[i].s,E[i].v,0,Y.size()-1,1);
        else{
            cnt++;
            par[cnt] = cnt;
            act(E[i].s,E[i].e,0,Y.size()-1,1);
            inter += sum(E[i].s,E[i].e,0,Y.size()-1,1);
        }
    }
    for(int i=1; i<=cnt; i++) ch[fnd(i)] = true;
    for(int i=1; i<=cnt; i++) comp += ch[i];
    //cout << sizeof(L) << '\n';
    //cout << sizeof(T) << '\n';
    //cout << sizeof(L)+sizeof(T)+sizeof(par)+sizeof(ch)+sizeof(E)/*+sizeof(X)+sizeof(Y)*/ << '\n';
    cout << inter+comp-N-4;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	380 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	4 ms	376 KB	Output is correct
9	Correct	4 ms	376 KB	Output is correct
10	Correct	4 ms	376 KB	Output is correct
11	Correct	3 ms	376 KB	Output is correct
12	Correct	8 ms	376 KB	Output is correct
13	Correct	4 ms	376 KB	Output is correct
14	Correct	4 ms	376 KB	Output is correct
15	Correct	3 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	380 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	4 ms	376 KB	Output is correct
9	Correct	4 ms	376 KB	Output is correct
10	Correct	4 ms	376 KB	Output is correct
11	Correct	3 ms	376 KB	Output is correct
12	Correct	8 ms	376 KB	Output is correct
13	Correct	4 ms	376 KB	Output is correct
14	Correct	4 ms	376 KB	Output is correct
15	Correct	3 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	4 ms	376 KB	Output is correct
22	Correct	4 ms	380 KB	Output is correct
23	Correct	4 ms	376 KB	Output is correct
24	Correct	4 ms	376 KB	Output is correct
25	Correct	4 ms	376 KB	Output is correct
26	Correct	4 ms	376 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	4 ms	376 KB	Output is correct

Subtask #3
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	3 ms	376 KB	Output is correct
4	Correct	4 ms	376 KB	Output is correct
5	Correct	31 ms	1272 KB	Output is correct
6	Correct	163 ms	5488 KB	Output is correct
7	Runtime error	470 ms	263168 KB	Execution killed with signal 9 (could be triggered by violating memory limits)
8	Halted	0 ms	0 KB	-

Subtask #4
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	4 ms	376 KB	Output is correct
3	Correct	34 ms	1244 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	4 ms	504 KB	Output is correct
6	Runtime error	292 ms	19168 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
7	Halted	0 ms	0 KB	-

Subtask #5
0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	380 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	4 ms	376 KB	Output is correct
9	Correct	4 ms	376 KB	Output is correct
10	Correct	4 ms	376 KB	Output is correct
11	Correct	3 ms	376 KB	Output is correct
12	Correct	8 ms	376 KB	Output is correct
13	Correct	4 ms	376 KB	Output is correct
14	Correct	4 ms	376 KB	Output is correct
15	Correct	3 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	4 ms	376 KB	Output is correct
22	Correct	4 ms	380 KB	Output is correct
23	Correct	4 ms	376 KB	Output is correct
24	Correct	4 ms	376 KB	Output is correct
25	Correct	4 ms	376 KB	Output is correct
26	Correct	4 ms	376 KB	Output is correct
27	Correct	5 ms	376 KB	Output is correct
28	Correct	4 ms	376 KB	Output is correct
29	Correct	3 ms	376 KB	Output is correct
30	Correct	3 ms	376 KB	Output is correct
31	Correct	3 ms	376 KB	Output is correct
32	Correct	4 ms	376 KB	Output is correct
33	Correct	31 ms	1272 KB	Output is correct
34	Correct	163 ms	5488 KB	Output is correct
35	Runtime error	470 ms	263168 KB	Execution killed with signal 9 (could be triggered by violating memory limits)
36	Halted	0 ms	0 KB	-

답안 #95876

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 5.0 / 5.0

Subtask #3 0 / 20.0

Subtask #4 0 / 20.0

Subtask #5 0 / 50.0

Subtask #1
5.0 / 5.0

Subtask #2
5.0 / 5.0

Subtask #3
0 / 20.0

Subtask #4
0 / 20.0

Subtask #5
0 / 50.0