oj.uz

Submission #851317

# Submission time Handle Problem Language Result Execution time Memory
851317 2023-09-19T14:28:19 Z niter Sightseeing in Kyoto (JOI22_kyoto) C++14
10 / 100
 407 ms 321224 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 = 5e6;
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){assert((i << 11) + j < mxn); 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();

    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 26 ms 119644 KB Output is correct
2 Correct 24 ms 119640 KB Output is correct
3 Correct 25 ms 119644 KB Output is correct
4 Correct 29 ms 120676 KB Output is correct
5 Correct 26 ms 123740 KB Output is correct
6 Correct 25 ms 121692 KB Output is correct
7 Correct 25 ms 121664 KB Output is correct
8 Correct 25 ms 119640 KB Output is correct
9 Correct 175 ms 144308 KB Output is correct
10 Correct 146 ms 143060 KB Output is correct
11 Correct 142 ms 143956 KB Output is correct
12 Correct 139 ms 143932 KB Output is correct
13 Correct 407 ms 186472 KB Output is correct
14 Correct 137 ms 145852 KB Output is correct
15 Correct 131 ms 143188 KB Output is correct
16 Correct 402 ms 186452 KB Output is correct
17 Correct 25 ms 119768 KB Output is correct
18 Correct 25 ms 119644 KB Output is correct
19 Correct 26 ms 119804 KB Output is correct
20 Correct 24 ms 119644 KB Output is correct
21 Correct 24 ms 119896 KB Output is correct
22 Correct 24 ms 119644 KB Output is correct
23 Correct 25 ms 119644 KB Output is correct
24 Correct 26 ms 119640 KB Output is correct
25 Correct 24 ms 119644 KB Output is correct
26 Correct 26 ms 119644 KB Output is correct
27 Correct 24 ms 119644 KB Output is correct
28 Correct 24 ms 119644 KB Output is correct

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 119644 KB Output is correct
2 Correct 26 ms 119644 KB Output is correct
3 Correct 120 ms 138996 KB Output is correct
4 Runtime error 151 ms 321224 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 26 ms 119644 KB Output is correct
2 Correct 24 ms 119640 KB Output is correct
3 Correct 25 ms 119644 KB Output is correct
4 Correct 29 ms 120676 KB Output is correct
5 Correct 26 ms 123740 KB Output is correct
6 Correct 25 ms 121692 KB Output is correct
7 Correct 25 ms 121664 KB Output is correct
8 Correct 25 ms 119640 KB Output is correct
9 Correct 175 ms 144308 KB Output is correct
10 Correct 146 ms 143060 KB Output is correct
11 Correct 142 ms 143956 KB Output is correct
12 Correct 139 ms 143932 KB Output is correct
13 Correct 407 ms 186472 KB Output is correct
14 Correct 137 ms 145852 KB Output is correct
15 Correct 131 ms 143188 KB Output is correct
16 Correct 402 ms 186452 KB Output is correct
17 Correct 25 ms 119768 KB Output is correct
18 Correct 25 ms 119644 KB Output is correct
19 Correct 26 ms 119804 KB Output is correct
20 Correct 24 ms 119644 KB Output is correct
21 Correct 24 ms 119896 KB Output is correct
22 Correct 24 ms 119644 KB Output is correct
23 Correct 25 ms 119644 KB Output is correct
24 Correct 26 ms 119640 KB Output is correct
25 Correct 24 ms 119644 KB Output is correct
26 Correct 26 ms 119644 KB Output is correct
27 Correct 24 ms 119644 KB Output is correct
28 Correct 24 ms 119644 KB Output is correct
29 Correct 24 ms 119644 KB Output is correct
30 Correct 26 ms 119644 KB Output is correct
31 Correct 120 ms 138996 KB Output is correct
32 Runtime error 151 ms 321224 KB Execution killed with signal 6
33 Halted 0 ms 0 KB -