oj.uz

Submission #665418

# Submission time Handle Problem Language Result Execution time Memory
665418 2022-11-27T11:16:01 Z jcelin Peru (RMI20_peru) C++14
100 / 100
 160 ms 56840 KB 
#include <bits/stdc++.h>
#include "peru.h"
//#include<ext/pb_ds/assoc_container.hpp>
//#include<ext/pb_ds/tree_policy.hpp>

using namespace std;
//using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;
typedef unsigned int ui;

#define ii pair<int,int>
#define pll pair<ll,ll>
#define vi vector<int>
#define vii vector<ii>
#define vll vector<ll>
#define vpll vector<pll>
#define matrix vector<vi>
#define matrixLL vector<vll>
#define vs vector<string>
#define vui vector<ui>
#define msi multiset<int>
#define mss multiset<string>
#define si set<int>
#define ss set<string>
#define PB push_back
#define PF push_front
#define PPB pop_back
#define PPF pop_front
#define X first
#define Y second
#define MP make_pair
#define FOR(i, a, b) for (int i = int(a); i < int(b); i++)
#define REP(i, n) FOR(i, 0, n)
#define all(x) (x).begin(), (x).end()

const int dx[] = {-1, 1, 0, 0};
const int dy[] = {0, 0, -1, 1};
const int dxx[] = {-1, 1, 0, 0, 1, 1, -1, -1};
const int dyy[] = {0, 0, -1, 1, -1, 1, -1, 1};
const string abc="abcdefghijklmnopqrstuvwxyz";
const string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const ld pi = 3.14159265;
const int mod = 1e9 + 7;
const int MOD = 1e9 + 7;
const int MAXN = 3e6 + 7;
const int inf = mod;
const ll INF = 1e18;
const ll zero = ll(0);
const int logo = 20;
const int off = 1 << logo;
const int trsz = off << 1;

ll dp[MAXN];
stack<ll> l, r;

struct node{
	ll opt;
	int arr, ind;
	
	node(ll opt, int arr, int ind){
		this->opt = opt;
		this->arr = arr;
		this->ind = ind;
	}
};

deque<node> d;

int add(ll a, ll b){
	return (a + b) % mod;
}

int mul(ll a, ll b){
	return (a * b) % mod;
}

ll get_min(){
	ll ret = INF;
	if(!l.empty()) ret = min(ret, l.top());
	if(!r.empty()) ret = min(ret, r.top());
	return ret;
}

void push(stack<ll> &s, ll val){
	if(s.empty()) s.push(val);
	else s.push(min(val, s.top()));	
}

void rebuild(){
	while(!l.empty()) l.pop();
	while(!r.empty()) r.pop();
	int sz = d.size();
	int line = sz / 2;
	
	vector<node> v;
	REP(i, line) v.PB(d.front()), d.PPF();
	while(!v.empty()){
		push(l, v.back().opt);
		d.PF(v.back());
		v.PPB();
	}
	
	REP(i, sz - line) v.PB(d.back()), d.PPB();
	while(!v.empty()){
		push(r, v.back().opt);
		d.PB(v.back());
		v.PPB();
	}
}


int solve(int n, int k, int *arr){
	int ret = 0;
	for(int i = 1; i <= n; i++){
		if(i == 1){
			dp[i] = arr[i - 1];
			d.PB(node(dp[i], arr[i - 1], i));
			push(r, arr[i - 1]);
			ret = add(mul(ret, 23), dp[i]);
			continue;
		}
		
		//prvi veci u stacku(1 indeks.)
		int dpind = i;
		while(!d.empty() and d.back().arr <= arr[i - 1]){
			dpind = d.back().ind;			
			d.PPB();
			if(r.empty()) rebuild();
			else r.pop();
		}
		
		d.PB(node(dp[dpind - 1] + arr[i - 1], arr[i - 1], dpind));
		push(r, dp[dpind - 1] + arr[i - 1]);
		
		if(i > k and d.front().ind <= i - k){
			ll arrmax = d.front().arr;
			
			d.pop_front();
			if(l.empty()) rebuild();
			else l.pop();
			
			//ak sam popo maksimum i maks je zadni ubacen
			if(d.empty()){
				d.push_front(node(dp[i - k] + arrmax, arrmax, i - k + 1));
				push(l, dp[i - k] + arrmax);
			}else if(d.front().ind > i - k + 1){
				//ako onaj kojeg sam popo nije najlijeviji ga vrati nazad
				d.push_front(node(dp[i - k] + arrmax, arrmax, i - k + 1));
				push(l, dp[i - k] + arrmax);
			}
			
		}
		dp[i] = get_min();
		//cout << dp[i] << " ";
		ret = add(mul(ret, 23), dp[i]);
	}
	return ret;
}

/*


void solv(){
	int n, k;
	cin >> n >> k;
	vi arr; arr.clear();
	REP(i, n){
		int x;
		cin >> x;
		arr.PB(x);
	}
	
	cout << solve(n, k, arr);
}

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int t=1;
	//cin >> t;
	while(t--)solv();
	return 0;
}


*/

Subtask #1
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 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 332 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 336 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 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 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 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 332 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 336 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 26 ms 9148 KB Output is correct
16 Correct 24 ms 9180 KB Output is correct
17 Correct 26 ms 9204 KB Output is correct
18 Correct 26 ms 9204 KB Output is correct
19 Correct 29 ms 9140 KB Output is correct
20 Correct 24 ms 9144 KB Output is correct
21 Correct 24 ms 9124 KB Output is correct
22 Correct 25 ms 9164 KB Output is correct
23 Correct 25 ms 9308 KB Output is correct
24 Correct 27 ms 9204 KB Output is correct
25 Correct 27 ms 9136 KB Output is correct
26 Correct 26 ms 9128 KB Output is correct
27 Correct 28 ms 9220 KB Output is correct
28 Correct 23 ms 9248 KB Output is correct
29 Correct 23 ms 9380 KB Output is correct
30 Correct 24 ms 9212 KB Output is correct
31 Correct 28 ms 9132 KB Output is correct
32 Correct 25 ms 9232 KB Output is correct
33 Correct 30 ms 9188 KB Output is correct

Subtask #3
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 9148 KB Output is correct
2 Correct 24 ms 9180 KB Output is correct
3 Correct 26 ms 9204 KB Output is correct
4 Correct 26 ms 9204 KB Output is correct
5 Correct 29 ms 9140 KB Output is correct
6 Correct 24 ms 9144 KB Output is correct
7 Correct 24 ms 9124 KB Output is correct
8 Correct 25 ms 9164 KB Output is correct
9 Correct 25 ms 9308 KB Output is correct
10 Correct 27 ms 9204 KB Output is correct
11 Correct 27 ms 9136 KB Output is correct
12 Correct 26 ms 9128 KB Output is correct
13 Correct 28 ms 9220 KB Output is correct
14 Correct 23 ms 9248 KB Output is correct
15 Correct 23 ms 9380 KB Output is correct
16 Correct 24 ms 9212 KB Output is correct
17 Correct 28 ms 9132 KB Output is correct
18 Correct 25 ms 9232 KB Output is correct
19 Correct 30 ms 9188 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 141 ms 32880 KB Output is correct
35 Correct 138 ms 53532 KB Output is correct
36 Correct 156 ms 53540 KB Output is correct
37 Correct 144 ms 53508 KB Output is correct
38 Correct 147 ms 53552 KB Output is correct
39 Correct 138 ms 53504 KB Output is correct
40 Correct 160 ms 53460 KB Output is correct
41 Correct 151 ms 53456 KB Output is correct
42 Correct 152 ms 53560 KB Output is correct
43 Correct 58 ms 21824 KB Output is correct
44 Correct 92 ms 33432 KB Output is correct
45 Correct 87 ms 33320 KB Output is correct
46 Correct 108 ms 33244 KB Output is correct
47 Correct 138 ms 55612 KB Output is correct
48 Correct 143 ms 55780 KB Output is correct
49 Correct 140 ms 55908 KB Output is correct
50 Correct 129 ms 56628 KB Output is correct
51 Correct 145 ms 56240 KB Output is correct
52 Correct 137 ms 56840 KB Output is correct
53 Correct 139 ms 56516 KB Output is correct
54 Correct 150 ms 53520 KB Output is correct
55 Correct 132 ms 53384 KB Output is correct
56 Correct 130 ms 53324 KB Output is correct
57 Correct 148 ms 53396 KB Output is correct
58 Correct 134 ms 53412 KB Output is correct
59 Correct 155 ms 53516 KB Output is correct
60 Correct 135 ms 53532 KB Output is correct
61 Correct 155 ms 55740 KB Output is correct
62 Correct 153 ms 55848 KB Output is correct
63 Correct 159 ms 55612 KB Output is correct