oj.uz

Submission #761256

# Submission time Handle Problem Language Result Execution time Memory
761256 2023-06-19T12:06:34 Z ksu2009en Peru (RMI20_peru) C++17
49 / 100
 231 ms 262144 KB 
#include "peru.h"
#include <iostream>
#include <vector>
#include <string>
#include <math.h>
#include <cmath>
#include <iomanip>
#include <cstdio>
#include <algorithm>
#include <numeric>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <deque>
#include <bitset>
#include <cstring>
#include <unordered_map>

using namespace std;
typedef long long ll;

ll const mod = (ll)(1e9 + 7);

struct one{
    ll res, min_dp, mx, mod;
};

one t[4 * 2500000 + 7];

void build(ll v, ll l, ll r){
    if(l == r){
        t[v].res = t[v].min_dp = t[v].mx = (ll)(2500000) * (ll)(2000000000) + 1;
        t[v].mod = -1;
        return;
    }
    ll mid = (l + r) >> 1;
    
    build(2 * v, l, mid);
    build(2 * v + 1, mid + 1, r);
    
    t[v].res = t[v].min_dp = t[v].mx = (ll)(2500000) * (ll)(2000000000) + 1;
    t[v].mod = -1;
}

void push(ll v, ll l, ll r){
    if(l != r && t[v].mod != -1){
        //cout << "  pushing " << l << ' ' << r << ' ' << t[v].mod << endl;
        t[2 * v].mod = max(t[2 * v].mod, t[v].mod);
        t[2 * v].res = t[2 * v].min_dp + t[2 * v].mod;
        
        //cout << " left son val :::::::: " << l << ' ' << r << ' ' << t[2 * v].res << endl;
        
        t[2 * v + 1].mod = max(t[2 * v + 1].mod, t[v].mod);
        t[2 * v + 1].res = t[2 * v + 1].min_dp + t[2 * v + 1].mod;
        
        t[v].mod = -1;
    }
}

void update_dp(ll v, ll l, ll r, ll pos, ll val, ll mx){
    if(l == r){
        t[v].min_dp = val;
        t[v].res = val + mx;
        t[v].mod = mx;
        
        //cout << "    update_dp " << l << ' ' << r << ' ' << t[v].res << ' ' << t[v].min_dp << endl;
        
        return;
    }
    
    ll mid = (l + r) >> 1;
    push(v, l, r);
    
    if(pos <= mid)
        update_dp(2 * v, l, mid, pos, val, mx);
    else
        update_dp(2 * v + 1, mid + 1, r, pos, val, mx);
    
    t[v].res = min(t[2 * v].res, t[2 * v + 1].res);
    //cout << l << ' ' << mid << ' ' << t[2 * v].res << endl;
    //cout << "    update_dp " << l << ' ' << r << ' ' << t[v].res  << ' ' << pos << ' ' << val << ' ' << mx << endl;

    t[v].min_dp = min(t[2 * v].min_dp, t[2 * v + 1].min_dp);
}

void update_mx(ll v, ll l, ll r, ll ql, ll qr, ll mx){
    if(r < ql || qr < l)
        return;
    
    if(ql <= l && r <= qr){
        t[v].mod = max(t[v].mod, mx);
        t[v].res = t[v].min_dp + t[v].mod;
      //  cout << l << ' ' << r << ' ' << t[v].mod << endl;

        return;
    }
    
    ll mid = (l + r) >> 1;
    push(v, l, r);
    update_mx(2 * v, l, mid, ql, qr, mx);
    update_mx(2 * v + 1, mid + 1, r, ql, qr, mx);
    
    t[v].res = min(t[2 * v].res, t[2 * v + 1].res);
    t[v].min_dp = min(t[2 * v].min_dp, t[2 * v + 1].min_dp);
}

ll get_min(ll v, ll l, ll r, ll ql, ll qr){
    if(r < ql || qr < l)
        return (ll)(2500000) * (ll)(2000000000) + 1;
    
    if(ql <= l && r <= qr){
      //  cout << "geting getting getting getiing getting " << l << ' ' << r << ' ' << t[v].res << endl;
        return t[v].res;
    }
    
    ll mid = (l + r) >> 1;
    push(v, l, r);
    
    return min(get_min(2 * v, l, mid, ql, qr), get_min(2 * v + 1, mid + 1, r, ql, qr));
}


int solve(int n, int k, int* b){
    vector<ll>dp(n + 1), a(n + 1);
    for(int i = 0; i < n; i++)
        a[i + 1] = b[i];
    
    build(1, 1, n);
    
    dp[1] = a[1];
    update_dp(1, 1, n, 1, 0, a[1]);
    
    for(int i = 2; i <= n; i++){
        dp[i] = (dp[i - 1] + (ll)a[i]);
        update_dp(1, 1, n, i, dp[i - 1], a[i]);
        
        
        ll mx = 0;
        ll last = 1;
        
        for(int j = i - 1; j >= max(0, i - k + 1); j--){
            mx = max(mx, (ll)a[j]);
            if(mx > a[i]){
                last = j + 1;
                break;
            }
        }
       // cout << "LAST " << last << endl;
        if(last <= i - 1)
            update_mx(1, 1, n, last, i - 1, a[i]);
        
       // cout << get_min(1, 1, n, i - k + 1, i) << endl;

        dp[i] = get_min(1, 1, n, i - k + 1, i);
    }
    
    
    ll p = 1;
    
    ll ans = 0;
    for(int i = n; i >= 1; i--){
        dp[i] %= mod;
        
        ans = (ans + (p * dp[i]) % mod) % mod;
        
        p = (p * 23) % mod;
    }
    
    
    return ans;
}

Subtask #1
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 464 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 464 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 211 ms 45104 KB Output is correct
16 Correct 173 ms 45084 KB Output is correct
17 Correct 175 ms 45400 KB Output is correct
18 Correct 231 ms 45132 KB Output is correct
19 Correct 222 ms 45188 KB Output is correct
20 Correct 222 ms 45188 KB Output is correct
21 Correct 184 ms 45188 KB Output is correct
22 Correct 187 ms 45184 KB Output is correct
23 Correct 185 ms 45216 KB Output is correct
24 Correct 174 ms 45184 KB Output is correct
25 Correct 173 ms 45152 KB Output is correct
26 Correct 200 ms 45232 KB Output is correct
27 Correct 174 ms 45144 KB Output is correct
28 Correct 201 ms 45096 KB Output is correct
29 Correct 225 ms 45388 KB Output is correct
30 Correct 176 ms 45176 KB Output is correct
31 Correct 169 ms 45108 KB Output is correct
32 Correct 199 ms 45076 KB Output is correct
33 Correct 168 ms 45068 KB Output is correct

Subtask #3
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 211 ms 45104 KB Output is correct
2 Correct 173 ms 45084 KB Output is correct
3 Correct 175 ms 45400 KB Output is correct
4 Correct 231 ms 45132 KB Output is correct
5 Correct 222 ms 45188 KB Output is correct
6 Correct 222 ms 45188 KB Output is correct
7 Correct 184 ms 45188 KB Output is correct
8 Correct 187 ms 45184 KB Output is correct
9 Correct 185 ms 45216 KB Output is correct
10 Correct 174 ms 45184 KB Output is correct
11 Correct 173 ms 45152 KB Output is correct
12 Correct 200 ms 45232 KB Output is correct
13 Correct 174 ms 45144 KB Output is correct
14 Correct 201 ms 45096 KB Output is correct
15 Correct 225 ms 45388 KB Output is correct
16 Correct 176 ms 45176 KB Output is correct
17 Correct 169 ms 45108 KB Output is correct
18 Correct 199 ms 45076 KB Output is correct
19 Correct 168 ms 45068 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 2 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 464 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Runtime error 186 ms 262144 KB Execution killed with signal 9
35 Halted 0 ms 0 KB -