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Submission #1065955

# Submission time Handle Problem Language Result Execution time Memory
1065955 2024-08-19T13:30:29 Z Rafi22 Peru (RMI20_peru) C++14
49 / 100
 600 ms 164808 KB 
#include "peru.h"
#include <bits/stdc++.h>
using namespace std;

#ifdef DEBUG
auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";}
auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";}
#define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X)
#else
#define debug(...){}
#endif

#define ll long long
#define ld long double
#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define FOR(i,l,r) for(int i=(l);i<=(r);i++)
#define ROF(i,r,l) for(int i=(r);i>=(l);i--)
int inf=2000000007;
ll infl=1000000000000000007;
ll mod=1000000007;
ll mod1=998244353;

const int N=2500007;

//ll DP1[N];

ll DP[N];

int a[N];
vector<pair<int,int>>G[N];

int solve(int n,int k,int* v)
{
	FOR(i,1,n) a[i]=v[i-1];
	a[0]=inf,a[n+1]=inf;
	vector<pair<int,int>>X;
	X.pb({inf,0});
	FOR(i,1,n+1)
	{
		int last=-1;
		while(X.back().st<a[i]) 
		{
			if(last!=-1&&i-1-X.back().nd<=k) G[i-1].pb({X.back().nd,last});
			last=X.back().st;
			X.pop_back();
		}
		if(last!=-1&&i-1-X.back().nd<=k) G[i-1].pb({X.back().nd,last});
		X.pb({a[i],i});
	}
	X.clear();
	X.pb({inf,n+1});
	ROF(i,n,0)
	{
		int last=-1;
		while(X.back().st<a[i]) 
		{
			if(last!=-1&&X.back().nd-1-i<=k) G[X.back().nd-1].pb({i,last});
			last=X.back().st;
			X.pop_back();
		}
		if(last!=-1&&X.back().nd-1-i<=k) G[X.back().nd-1].pb({i,last});
		X.pb({a[i],i});
	}
	deque<pair<ll,int>>Q;
	FOR(i,1,n)
	{
		DP[i]=infl;
		if(sz(Q)>0&&Q[0].nd<=i-k) Q.pop_front();
		while(sz(Q)>0&&Q.back().st<a[i]) Q.pop_back();
		Q.pb({a[i],i});
		DP[i]=DP[max(0,i-k)]+Q[0].st;
		for(auto [j,c]:G[i])
		{
			debug(i,j,c);
			DP[i]=min(DP[i],DP[j]+c);
		}
		ROF(j,i-1,1)
		{
			if(DP[j]<=DP[i]) break;
			DP[j]=DP[i];
		}
	}
	/*FOR(i,1,n)
	{
		DP1[i]=infl;
		int mx=0;
		ROF(j,i,1)
		{
			if(i-j+1>k) break;
			mx=max(mx,a[j]);
			DP1[i]=min(DP1[i],DP1[j-1]+mx);
		}
	}
	
	FOR(i,1,n) debug(DP[i],DP1[i]);*/
	ll h=0,pot=1;
	ROF(i,n,1)
	{
		h=(h+DP[i]%mod*pot)%mod;
		pot=pot*23%mod;
	}
    return (int)h;
}

Compilation message

peru.cpp: In function 'int solve(int, int, int*)':
peru.cpp:77:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   77 |   for(auto [j,c]:G[i])
      |            ^

Subtask #1
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 59228 KB Output is correct
2 Correct 28 ms 59224 KB Output is correct
3 Correct 27 ms 59228 KB Output is correct
4 Correct 27 ms 59164 KB Output is correct
5 Correct 25 ms 59072 KB Output is correct
6 Correct 27 ms 59228 KB Output is correct
7 Correct 28 ms 59228 KB Output is correct
8 Correct 32 ms 59228 KB Output is correct
9 Correct 26 ms 59228 KB Output is correct
10 Correct 28 ms 59228 KB Output is correct
11 Correct 27 ms 59228 KB Output is correct
12 Correct 28 ms 59168 KB Output is correct
13 Correct 26 ms 59232 KB Output is correct
14 Correct 28 ms 59124 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 59228 KB Output is correct
2 Correct 28 ms 59224 KB Output is correct
3 Correct 27 ms 59228 KB Output is correct
4 Correct 27 ms 59164 KB Output is correct
5 Correct 25 ms 59072 KB Output is correct
6 Correct 27 ms 59228 KB Output is correct
7 Correct 28 ms 59228 KB Output is correct
8 Correct 32 ms 59228 KB Output is correct
9 Correct 26 ms 59228 KB Output is correct
10 Correct 28 ms 59228 KB Output is correct
11 Correct 27 ms 59228 KB Output is correct
12 Correct 28 ms 59168 KB Output is correct
13 Correct 26 ms 59232 KB Output is correct
14 Correct 28 ms 59124 KB Output is correct
15 Correct 65 ms 76480 KB Output is correct
16 Correct 70 ms 76368 KB Output is correct
17 Correct 67 ms 73932 KB Output is correct
18 Correct 80 ms 78872 KB Output is correct
19 Correct 85 ms 80212 KB Output is correct
20 Correct 86 ms 79916 KB Output is correct
21 Correct 64 ms 76368 KB Output is correct
22 Correct 80 ms 75244 KB Output is correct
23 Correct 87 ms 75468 KB Output is correct
24 Correct 74 ms 73080 KB Output is correct
25 Correct 76 ms 73412 KB Output is correct
26 Correct 62 ms 76372 KB Output is correct
27 Correct 68 ms 77564 KB Output is correct
28 Correct 62 ms 77700 KB Output is correct
29 Correct 60 ms 77904 KB Output is correct
30 Correct 71 ms 76368 KB Output is correct
31 Correct 64 ms 74928 KB Output is correct
32 Correct 66 ms 77392 KB Output is correct
33 Correct 58 ms 74896 KB Output is correct

Subtask #3
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 76480 KB Output is correct
2 Correct 70 ms 76368 KB Output is correct
3 Correct 67 ms 73932 KB Output is correct
4 Correct 80 ms 78872 KB Output is correct
5 Correct 85 ms 80212 KB Output is correct
6 Correct 86 ms 79916 KB Output is correct
7 Correct 64 ms 76368 KB Output is correct
8 Correct 80 ms 75244 KB Output is correct
9 Correct 87 ms 75468 KB Output is correct
10 Correct 74 ms 73080 KB Output is correct
11 Correct 76 ms 73412 KB Output is correct
12 Correct 62 ms 76372 KB Output is correct
13 Correct 68 ms 77564 KB Output is correct
14 Correct 62 ms 77700 KB Output is correct
15 Correct 60 ms 77904 KB Output is correct
16 Correct 71 ms 76368 KB Output is correct
17 Correct 64 ms 74928 KB Output is correct
18 Correct 66 ms 77392 KB Output is correct
19 Correct 58 ms 74896 KB Output is correct
20 Correct 29 ms 59228 KB Output is correct
21 Correct 28 ms 59224 KB Output is correct
22 Correct 27 ms 59228 KB Output is correct
23 Correct 27 ms 59164 KB Output is correct
24 Correct 25 ms 59072 KB Output is correct
25 Correct 27 ms 59228 KB Output is correct
26 Correct 28 ms 59228 KB Output is correct
27 Correct 32 ms 59228 KB Output is correct
28 Correct 26 ms 59228 KB Output is correct
29 Correct 28 ms 59228 KB Output is correct
30 Correct 27 ms 59228 KB Output is correct
31 Correct 28 ms 59168 KB Output is correct
32 Correct 26 ms 59232 KB Output is correct
33 Correct 28 ms 59124 KB Output is correct
34 Correct 309 ms 157172 KB Output is correct
35 Correct 371 ms 164808 KB Output is correct
36 Correct 342 ms 163812 KB Output is correct
37 Correct 480 ms 157132 KB Output is correct
38 Correct 416 ms 160372 KB Output is correct
39 Correct 562 ms 161324 KB Output is correct
40 Execution timed out 838 ms 151652 KB Time limit exceeded
41 Halted 0 ms 0 KB -