oj.uz

Submission #851321

# Submission time Handle Problem Language Result Execution time Memory
851321 2023-09-19T14:36:23 Z niter Sightseeing in Kyoto (JOI22_kyoto) C++14
10 / 100
 400 ms 243904 KB 
#include <bits/stdc++.h>
#define loop(i,a,b) for(int i=a;i<b;i++)
#define pii pair<int,int>
#define pb push_back
#define ins insert
#define ff first
#define ss second
#define opa(x) cout << #x << " = " << x << ", ";
#define op(x) cout << #x << " = " << x << endl;
#define ops(x) cout << x;
#define entr cout << endl;
#define spac cout << ' ';
#define all(x) (x).begin(), (x).end()
#define STL(x) cout << #x << " : "; for(auto &qwe:x) cout << qwe << ' '; cout << endl;
#define arr(x, n) cout << #x << " : "; loop(qwe,0,n) cout << x[qwe] << ' '; cout << endl;
#define deb1 cout << "deb1" << endl;
#define deb2 cout << "deb2" << endl;
#define deb3 cout << "deb3" << endl;
#define deb4 cout << "deb4" << endl;
#define deb5 cout << "deb5" << endl;
using namespace std;
typedef long long ll;

const int mxn = (int)(5e6) + 10;
ll dp[mxn];
int a_in[100005], b_in[100005];
vector<ll> a, b;
vector<ll> mul_a, mul_b;
const ll INF = 4e18;
vector<pair<int, ll>> E[mxn];

inline int hsh(int i, int j){return (i << 11) + j; }
inline int get_i(int x){ return x >> 11; }
inline int get_j(int x){ return x & 2047; }
void solve(){
    int n, m; cin >> n >> m;
    loop(i,0,n){
        cin >> a_in[i];
    }
    loop(j,0,m){
        cin >> b_in[j];
    }
    a.pb(a_in[0]);
    int now_mul = 1;
    loop(i,1,n-1){
        if(a_in[i] >= a_in[i-1] && a_in[i] >= a_in[i+1]){
            a_in[i] = a_in[i-1];
            now_mul++;
        }
        else{
            a.pb(a_in[i]);
            mul_b.pb(now_mul);
            now_mul = 1;
        }
    }
    a.pb(a_in[n-1]);
    mul_b.pb(now_mul);
    n = a.size();

    now_mul = 1;
    b.pb(b_in[0]);
    loop(i,1,m-1){
        if(b_in[i] >= b_in[i-1] && b_in[i] >= b_in[i+1]){
            b_in[i] = b_in[i-1];
            now_mul++;
        }
        else{
            b.pb(b_in[i]);
            mul_a.pb(now_mul);
            now_mul = 1;
        }
    }
    b.pb(b_in[m-1]);
    mul_a.pb(now_mul);
    m = b.size();
    assert(max(n, m) <= 2000);

    loop(i,0,n){
        loop(j,0,m){
            dp[hsh(i, j)] = INF;
        }
    }
    loop(i,0,n){
        loop(j,0,m-1){
            E[hsh(i, j)].pb({hsh(i, j+1), a[i] * mul_a[j]});
        }
    }
    loop(j,0,m){
        loop(i,0,n-1){
            E[hsh(i, j)].pb({hsh(i+1, j), b[j] * mul_b[i]});
        }
    }
    dp[0] = 0;
    priority_queue<pair<ll, int>, vector<pair<ll, int>>, greater<pair<ll, int>>> pq;
    pq.push({0, 0});
    while(!pq.empty()){
        ll dis = pq.top().ff;
        int now = pq.top().ss;
//        opa(dis) op(now);
        pq.pop();
        if(dis != dp[now]) continue;
        for(auto &i:E[now]){
            ll nxt_dis = dis + i.ss;
            int nxt = i.ff;
            if(dp[nxt] > nxt_dis){
                dp[nxt] = nxt_dis;
                pq.push({nxt_dis, nxt});
            }
        }
    }
    cout << dp[hsh(n-1, m-1)] << '\n';
}

int main(){
    ios::sync_with_stdio(false); cin.tie(0);
//    freopen("test_input.txt", "r", stdin);
    int t = 1;
    while(t--){
        solve();
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 119640 KB Output is correct
2 Correct 24 ms 119640 KB Output is correct
3 Correct 25 ms 119644 KB Output is correct
4 Correct 30 ms 120664 KB Output is correct
5 Correct 25 ms 123736 KB Output is correct
6 Correct 25 ms 121692 KB Output is correct
7 Correct 25 ms 121688 KB Output is correct
8 Correct 26 ms 119640 KB Output is correct
9 Correct 161 ms 144596 KB Output is correct
10 Correct 153 ms 143056 KB Output is correct
11 Correct 140 ms 144208 KB Output is correct
12 Correct 135 ms 143696 KB Output is correct
13 Correct 400 ms 186448 KB Output is correct
14 Correct 132 ms 145744 KB Output is correct
15 Correct 124 ms 142928 KB Output is correct
16 Correct 398 ms 186396 KB Output is correct
17 Correct 25 ms 119376 KB Output is correct
18 Correct 24 ms 119640 KB Output is correct
19 Correct 25 ms 119640 KB Output is correct
20 Correct 26 ms 119640 KB Output is correct
21 Correct 26 ms 119640 KB Output is correct
22 Correct 25 ms 119420 KB Output is correct
23 Correct 24 ms 119384 KB Output is correct
24 Correct 24 ms 119644 KB Output is correct
25 Correct 24 ms 119644 KB Output is correct
26 Correct 24 ms 119384 KB Output is correct
27 Correct 25 ms 119640 KB Output is correct
28 Correct 25 ms 119640 KB Output is correct

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 119640 KB Output is correct
2 Correct 27 ms 119896 KB Output is correct
3 Correct 115 ms 138920 KB Output is correct
4 Runtime error 114 ms 243904 KB Execution killed with signal 6
5 Halted 0 ms 0 KB -

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 119640 KB Output is correct
2 Correct 24 ms 119640 KB Output is correct
3 Correct 25 ms 119644 KB Output is correct
4 Correct 30 ms 120664 KB Output is correct
5 Correct 25 ms 123736 KB Output is correct
6 Correct 25 ms 121692 KB Output is correct
7 Correct 25 ms 121688 KB Output is correct
8 Correct 26 ms 119640 KB Output is correct
9 Correct 161 ms 144596 KB Output is correct
10 Correct 153 ms 143056 KB Output is correct
11 Correct 140 ms 144208 KB Output is correct
12 Correct 135 ms 143696 KB Output is correct
13 Correct 400 ms 186448 KB Output is correct
14 Correct 132 ms 145744 KB Output is correct
15 Correct 124 ms 142928 KB Output is correct
16 Correct 398 ms 186396 KB Output is correct
17 Correct 25 ms 119376 KB Output is correct
18 Correct 24 ms 119640 KB Output is correct
19 Correct 25 ms 119640 KB Output is correct
20 Correct 26 ms 119640 KB Output is correct
21 Correct 26 ms 119640 KB Output is correct
22 Correct 25 ms 119420 KB Output is correct
23 Correct 24 ms 119384 KB Output is correct
24 Correct 24 ms 119644 KB Output is correct
25 Correct 24 ms 119644 KB Output is correct
26 Correct 24 ms 119384 KB Output is correct
27 Correct 25 ms 119640 KB Output is correct
28 Correct 25 ms 119640 KB Output is correct
29 Correct 25 ms 119640 KB Output is correct
30 Correct 27 ms 119896 KB Output is correct
31 Correct 115 ms 138920 KB Output is correct
32 Runtime error 114 ms 243904 KB Execution killed with signal 6
33 Halted 0 ms 0 KB -