oj.uz

Submission #569188

# Submission time Handle Problem Language Result Execution time Memory
569188 2022-05-27T01:01:47 Z jeroenodb Fortune Telling 2 (JOI14_fortune_telling2) C++17
100 / 100
 163 ms 11372 KB 
#include "bits/stdc++.h"
using namespace std;
#define all(x) begin(x),end(x)
template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template<typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { string sep; for (const T &x : v) os << sep << x, sep = " "; return os; }
#define debug(a) cerr << "(" << #a << ": " << a << ")\n";
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pi;
const int mxN = 1e5+1, oo = 1.1e9;
struct segtree {
    int ptwo;
    vector<int> seg;
    segtree(){}
    int& operator[](int i) {
        return seg[i+ptwo];
    }
    segtree(int nn) {
        ptwo=1;
        while(ptwo<nn) 
            ptwo*=2;
        seg.assign(ptwo*2,oo);
    }
    void update(int i, int val) {
        assert(i>=0 and i<ptwo);
        i+=ptwo;
        seg[i] = val;
        for(i/=2;i>=1;i/=2) {
            seg[i] = min(seg[2*i],seg[2*i+1]);
        }
    }
    int findLastSmall(int v) {
        int at=1;
        while(at<ptwo) {
            at = at*2 + (seg[at*2+1]<v);
        }
        return at-ptwo;
    }
};
template<typename T> struct fenwick {
    int n;
    vector<T> fen;
    fenwick(){}
    fenwick(int nn) {
        fen.resize(nn+1);
        n = nn;
    }
    auto sum(int i) {
        T ans = 0;
        while(i) {
            ans+=fen[i];
            i&=i-1;
        }
        return ans;
    }
    auto query(int l, int r) {
        return sum(r+1)-sum(l);
    }
    void update(int i, T val) {
        ++i;
        while(i<=n) {
            fen[i]+=val;
            i+= i&(-i);
        }
    }
};
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n,k; cin >> n >> k;
    segtree seg(k+1);
    vector<array<int,2>> ab(n);
    for(auto& [a,b] : ab) cin >> a >> b;
    
    for(int i=1;i<=k;++i) {
        int t; cin >> t;
        seg.update(i,t);
    }
    vi ord(k); iota(all(ord),1);
    sort(all(ord),[&](int i, int j) {return seg[i]<seg[j];});
    sort(all(ab),[&](auto i, auto j) {return min(i[0],i[1])<min(j[0],j[1]);});
    ll ans=0;
    fenwick<int> fen(k+1);
    int j=0;
    for(auto& [a,b] : ab) {
        bool flip=a>b;
        if(flip) swap(a,b);
        while(j<k and seg[ord[j]]<a) {
            seg.update(ord[j],oo);
            fen.update(ord[j],1);
            ++j;
        }
        int id = seg.findLastSmall(b);
        bool par=false;
        if(id==0) {
            par = (k-id + !flip - fen.query(id,k))%2;
        } else {
            par = (k-id - fen.query(id,k))%2;
        }
        if(par) ans+=a;
        else ans+=b;
    }
    cout << ans << '\n';
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 332 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 7 ms 836 KB Output is correct
15 Correct 19 ms 1364 KB Output is correct
16 Correct 25 ms 1820 KB Output is correct
17 Correct 27 ms 2500 KB Output is correct
18 Correct 26 ms 2536 KB Output is correct
19 Correct 29 ms 2548 KB Output is correct
20 Correct 29 ms 2672 KB Output is correct
21 Correct 26 ms 2584 KB Output is correct
22 Correct 20 ms 2124 KB Output is correct
23 Correct 27 ms 2152 KB Output is correct
24 Correct 20 ms 2132 KB Output is correct
25 Correct 19 ms 2168 KB Output is correct
26 Correct 39 ms 2424 KB Output is correct
27 Correct 28 ms 2604 KB Output is correct
28 Correct 24 ms 2548 KB Output is correct
29 Correct 28 ms 2508 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 336 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 7 ms 836 KB Output is correct
15 Correct 19 ms 1364 KB Output is correct
16 Correct 25 ms 1820 KB Output is correct
17 Correct 27 ms 2500 KB Output is correct
18 Correct 26 ms 2536 KB Output is correct
19 Correct 29 ms 2548 KB Output is correct
20 Correct 29 ms 2672 KB Output is correct
21 Correct 26 ms 2584 KB Output is correct
22 Correct 20 ms 2124 KB Output is correct
23 Correct 27 ms 2152 KB Output is correct
24 Correct 20 ms 2132 KB Output is correct
25 Correct 19 ms 2168 KB Output is correct
26 Correct 39 ms 2424 KB Output is correct
27 Correct 28 ms 2604 KB Output is correct
28 Correct 24 ms 2548 KB Output is correct
29 Correct 28 ms 2508 KB Output is correct
30 Correct 69 ms 6128 KB Output is correct
31 Correct 92 ms 7236 KB Output is correct
32 Correct 101 ms 8592 KB Output is correct
33 Correct 145 ms 11300 KB Output is correct
34 Correct 56 ms 5848 KB Output is correct
35 Correct 151 ms 11312 KB Output is correct
36 Correct 144 ms 11216 KB Output is correct
37 Correct 142 ms 11280 KB Output is correct
38 Correct 141 ms 11340 KB Output is correct
39 Correct 141 ms 11344 KB Output is correct
40 Correct 123 ms 11072 KB Output is correct
41 Correct 139 ms 11212 KB Output is correct
42 Correct 163 ms 11272 KB Output is correct
43 Correct 111 ms 10576 KB Output is correct
44 Correct 108 ms 10640 KB Output is correct
45 Correct 107 ms 10448 KB Output is correct
46 Correct 121 ms 9432 KB Output is correct
47 Correct 117 ms 9172 KB Output is correct
48 Correct 134 ms 11340 KB Output is correct
49 Correct 127 ms 11372 KB Output is correct