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Submission #344946

# Submission time Handle Problem Language Result Execution time Memory
344946 2021-01-06T19:44:44 Z ogibogi2004 Boxes with souvenirs (IOI15_boxes) C++14
100 / 100
 682 ms 282688 KB 
#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll ans=2e17;
const ll MAXN=1e7+6;
ll pref[MAXN];
ll suf[MAXN];
long long delivery(int N, int K, int L, int p[]) {
	
	vector<ll>xd;
	for(ll i=0;i<N;i++)xd.push_back(p[i]);
	ll l=0,r=N-1,k=K,n=N,of=L,s,sl=0,sr=0;
	for(ll i=0;i<N;i++)
	{
		if(i-k>=0)pref[i]=pref[i-k];
		pref[i]+=xd[i]*2;
	}
	for(ll i=N-1;i>=0;i--)
	{
		if(i+k<=N-1)suf[i]=suf[i+k];
		suf[i]+=(of-xd[i])*2;
	}
	for(ll i=n-1;i>min(k-1,n-1);i--)
	{
		if((n-i)%k==0||i-1<=min(k-1,n-1))
		{
			sr+=(of-xd[i])*2;
		}
	}
	sr=suf[min(k-1,n-1)+1];
	for(ll i=0;i<n+1;i++)
	{
		ll i2=min(i+k-1,n-1);s=0;
		if(i2>=i)
		{
			s+=of;
		}
		ans=min(ans,sl+sr+s);
		//cout<<i<<":"<<sl<<" "<<sr<<" "<<s<<endl;
		/*if(i%k==0)
		{
			sl+=xd[i]*2;
		}
		else
		{
			sl-=xd[i-1]*2;
			sl+=xd[i]*2;
		}
		if(i+k<n)
		{
			sr-=(of-xd[i+k])*2;
			if((n-(i+k))%k!=0&&i+k+1<n)
			{
				sr+=(of-xd[i+k+1])*2;
			}
		}*/
		sl=pref[i];
		sr=suf[min(n,i+k+1)];
	}
	sl=0;sr=0;
	for(ll i=n-1;i>=0;i--)
	{
		if((n-i)%k==0||i==0)
		{
			sr+=(of-xd[i])*2;
		}
	}
	sr=suf[0];
	//cout<<sl<<" "<<sr<<endl;
	ans=min(ans,sr);
	for(ll i=0;i<n;i++)
	{
		/*if(i%k==k-1||i==0)sl+=xd[i]*2;
		else sl+=(xd[i]-xd[i-1])*2;
		sr-=(of-xd[i])*2;
		if(i+1<n)
		{
			if((n-(i+1))%k!=0)
			{
				sr+=(of-xd[i+1])*2;
			}
		}*/
		sl=pref[i];
		sr=suf[i+1];
		//cout<<i<<" "<<sl<<" "<<sr<<endl;
		ans=min(ans,sl+sr);
	}
    return ans;
}

Compilation message

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:13:5: warning: unused variable 'l' [-Wunused-variable]
   13 |  ll l=0,r=N-1,k=K,n=N,of=L,s,sl=0,sr=0;
      |     ^
boxes.cpp:13:9: warning: unused variable 'r' [-Wunused-variable]
   13 |  ll l=0,r=N-1,k=K,n=N,of=L,s,sl=0,sr=0;
      |         ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 364 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 380 KB Output is correct
32 Correct 1 ms 364 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 380 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 73 ms 37588 KB Output is correct
34 Correct 44 ms 29780 KB Output is correct
35 Correct 39 ms 30292 KB Output is correct
36 Correct 71 ms 37588 KB Output is correct
37 Correct 71 ms 37584 KB Output is correct
38 Correct 70 ms 37716 KB Output is correct
39 Correct 63 ms 36052 KB Output is correct
40 Correct 43 ms 31444 KB Output is correct
41 Correct 70 ms 37588 KB Output is correct
42 Correct 47 ms 31848 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 380 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 73 ms 37588 KB Output is correct
34 Correct 44 ms 29780 KB Output is correct
35 Correct 39 ms 30292 KB Output is correct
36 Correct 71 ms 37588 KB Output is correct
37 Correct 71 ms 37584 KB Output is correct
38 Correct 70 ms 37716 KB Output is correct
39 Correct 63 ms 36052 KB Output is correct
40 Correct 43 ms 31444 KB Output is correct
41 Correct 70 ms 37588 KB Output is correct
42 Correct 47 ms 31848 KB Output is correct
43 Correct 679 ms 282688 KB Output is correct
44 Correct 372 ms 276040 KB Output is correct
45 Correct 397 ms 276640 KB Output is correct
46 Correct 678 ms 282440 KB Output is correct
47 Correct 681 ms 282440 KB Output is correct
48 Correct 676 ms 282140 KB Output is correct
49 Correct 623 ms 280916 KB Output is correct
50 Correct 437 ms 277448 KB Output is correct
51 Correct 682 ms 282464 KB Output is correct
52 Correct 456 ms 277984 KB Output is correct