oj.uz

답안 #13654

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
13654 2015-02-27T06:21:00 Z gs14004 운세 보기 2 (JOI14_fortune_telling2) C++14
0 / 100
 2000 ms 11844 KB 
#include <cstdio>
#include <cstring>
#include <vector>
#include <algorithm>
#include <utility>
using namespace std;
typedef pair<int,int> pi;

vector<int> v;
int n,k;

int a[200005], b[200005], q[200005];
bool flip[200005];

struct rmq{
    int tree[1050000], lim;
    void init(int n){
        for(lim = 1; lim <= n; lim <<= 1);
        memset(tree,-1,sizeof(tree));
    }
    void add(int x, int v){
        x += lim;
        tree[x] = v;
        while(x>1){
            x >>= 1;
            tree[x] = max(tree[2*x],tree[2*x+1]);
        }
    }
    int q(int s, int e){
        s += lim;
        e += lim;
        int r = -1;
        while(s < e){
            if(s%2 == 1) r = max(r,tree[s++]);
            if(e%2 == 0) r = max(r,tree[e--]);
            s >>= 1;
            e >>= 1;
        }
        if(s == e) r = max(r,tree[s]);
        return r;
    }
}rmq;

struct bit{
    int tree[530000], lim;
    void init(int n){
        lim = n+1;
    }
    void add(int x){
        x++;
        while(x <= lim){
            tree[x]++;
            x += x & -x;
        }
    }
    int sum(int x){
        x++;
        int r = 0;
        while(x){
            r += tree[x];
            x -= x & -x;
        }
        return r;
    }
}bit;

void input(){
    scanf("%d %d",&n,&k);
    for (int i=0; i<n; i++) {
        scanf("%d %d",&a[i],&b[i]);
        if(a[i] > b[i]){
            swap(a[i],b[i]);
            flip[i] = 1;
        }
        v.push_back(a[i]);
        v.push_back(b[i]);
    }
    sort(v.begin(),v.end());
    v.resize(unique(v.begin(),v.end()) - v.begin());
    for (int i=0; i<n; i++) {
        a[i] = (int)(lower_bound(v.begin(),v.end(),a[i]) - v.begin());
        b[i] = (int)(lower_bound(v.begin(),v.end(),b[i]) - v.begin());
    }
    for (int i=0; i<k; i++) {
        scanf("%d",&q[i]);
        q[i] = (int)(upper_bound(v.begin(),v.end(),q[i]) - v.begin()) - 1;
    }
}

int table[200005];

int main(){
    input();
    rmq.init(2*n);
    for (int i=0; i<k; i++) {
        rmq.add(q[i],i);
    }
    for (int i=0; i<n; i++) {
        table[i] = rmq.q(a[i],b[i]-1);
    }
    bit.init(2*n);
    for (int i=0; i<k; i++) {
        bit.add(q[i]);
    }
    for (int i=0; i<n; i++) {
        if(table[i] >= 0) flip[i] = 1;
    }
    for (int i=0; i<k; i++) {
        for (int j=0; j<n; j++) {
            if(table[j] < i && b[j] <= q[i]){
                flip[j] ^= 1;
            }
        }
    }
    long long ret = 0;
    for (int i=0; i<n; i++) {
        if(flip[i]) ret += v[b[i]];
        else ret += v[a[i]];
    }
    printf("%lld",ret);
}

Subtask #1
0.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2000 ms 11068 KB Program timed out
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 113 ms 11204 KB Output is correct
2 Correct 404 ms 11460 KB Output is correct
3 Correct 890 ms 11460 KB Output is correct
4 Correct 1554 ms 11844 KB Output is correct
5 Correct 1546 ms 11844 KB Output is correct
6 Execution timed out 2000 ms 11844 KB Program timed out
7 Halted 0 ms 0 KB -

Subtask #3
0.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2000 ms 11200 KB Program timed out
2 Halted 0 ms 0 KB -