oj.uz

Submission #129360

# Submission time Handle Problem Language Result Execution time Memory
129360 2019-07-12T05:08:27 Z davitmarg Toll (BOI17_toll) C++17
100 / 100
 297 ms 66908 KB 
/*DavitMarg*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <queue>
#include <iomanip>
#include <stack>
#include <cassert>
#include <iterator>
#include <bitset>
#include <fstream>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(),v.end()
using namespace std;
 
struct node
{
    LL d[6][6];
    node()
    {
        for(int i=0;i<5;i++)
			for(int j=0;j<5;j++)
                d[i][j]=mod*100005ll;
    }
};
 
LL k,n,m,o;
bool used[50004];
vector<int> a[50004];
vector<pair<int,LL>> g[50004];
node t[4*50004];
 
node merge(node a,node b,int pos)
{
	node r;
    for(int s=0;s<k;s++)
		for(int e=0;e<k;e++)
            for(int v=pos*k;v<pos*k+k;v++)
                for(int i=0;i<g[v].size();i++)
				{
					int to=g[v][i].first;
					LL d=g[v][i].second;
                    r.d[s][e]=min( a.d[s][v-pos*k]+b.d[to-pos*k-k][e]+d ,r.d[s][e]);
				}
	return r;
}
 
void build(int v,int l,int r)
{
    if(l==r)
	{
        for(int i=0;i<k;i++)
            t[v].d[i][i]=0;
        return;
	}
	int m=(l+r)/2;
    build(v*2,l,m);
    build(v*2+1,m+1,r);
    t[v]=merge(t[v*2],t[v*2+1],m);
}
 
node get(int v,int l,int r,int i,int j)
{
    if(i>j)
        return node();
    if(l==i && r==j)
		return t[v];
	int m=(l+r)/2;
	if(j<=m)
        return get(v*2,l,m,i,j);
	else if(i>=m+1)
        return get(v*2+1,m+1,r,i,j);
	else
		return merge(
			get(v*2,l,m,i,m),
			get(v*2+1,m+1,r,m+1,j),
			m
		);
}
 
int main()
{
	cin>>k>>n>>m>>o;
    while(m--)
	{
		int a,b;
		LL d;
		scanf("%d%d%lld",&a,&b,&d);
		g[a].PB(MP(b,d));
	}
 
    for(int i=0;i<n;i++)
        a[i/k].PB(i);
 
    n--;
    build(1,0,n/k);
	while(o--)
	{
		int a,b;
		scanf("%d%d",&a,&b);
		LL ans=get(1,0,n/k,a/k,b/k).d[a-(a/k)*k][b-(b/k)*k];
		if(ans>=mod*100005ll)
			ans=-1;
        printf("%lld\n",ans);
	}
 
	return 0;
}
 
 
/*
 
5 14 5 5
0 5 9
5 12 10
0 7 7
7 12 8
4 7 10
0 12
0 5
0 7
7 12
0 13
 
*/

Compilation message

toll.cpp: In function 'node merge(node, node, int)':
toll.cpp:48:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 for(int i=0;i<g[v].size();i++)
                             ~^~~~~~~~~~~~
toll.cpp: In function 'int main()':
toll.cpp:97:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%lld",&a,&b,&d);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~
toll.cpp:109:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&a,&b);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 158 ms 63224 KB Output is correct
2 Correct 56 ms 59000 KB Output is correct
3 Correct 47 ms 59000 KB Output is correct
4 Correct 47 ms 59068 KB Output is correct
5 Correct 49 ms 59180 KB Output is correct
6 Correct 49 ms 59128 KB Output is correct
7 Correct 49 ms 59128 KB Output is correct
8 Correct 127 ms 63096 KB Output is correct
9 Correct 132 ms 63076 KB Output is correct
10 Correct 87 ms 60792 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 159 ms 63864 KB Output is correct
2 Correct 48 ms 59000 KB Output is correct
3 Correct 47 ms 59000 KB Output is correct
4 Correct 49 ms 59188 KB Output is correct
5 Correct 48 ms 59128 KB Output is correct
6 Correct 47 ms 59000 KB Output is correct
7 Correct 56 ms 59228 KB Output is correct
8 Correct 58 ms 59256 KB Output is correct
9 Correct 113 ms 63088 KB Output is correct
10 Correct 178 ms 65696 KB Output is correct
11 Correct 137 ms 63992 KB Output is correct
12 Correct 125 ms 62840 KB Output is correct
13 Correct 171 ms 66124 KB Output is correct
14 Correct 112 ms 63224 KB Output is correct
15 Correct 136 ms 62504 KB Output is correct
16 Correct 297 ms 62456 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 58972 KB Output is correct
2 Correct 47 ms 59004 KB Output is correct
3 Correct 47 ms 59000 KB Output is correct
4 Correct 48 ms 59000 KB Output is correct
5 Correct 56 ms 59128 KB Output is correct
6 Correct 57 ms 59128 KB Output is correct
7 Correct 48 ms 59128 KB Output is correct
8 Correct 51 ms 59256 KB Output is correct
9 Correct 55 ms 59256 KB Output is correct
10 Correct 94 ms 62968 KB Output is correct
11 Correct 119 ms 63708 KB Output is correct
12 Correct 136 ms 65320 KB Output is correct
13 Correct 143 ms 66040 KB Output is correct
14 Correct 126 ms 64444 KB Output is correct
15 Correct 98 ms 62460 KB Output is correct
16 Correct 96 ms 62456 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 58972 KB Output is correct
2 Correct 47 ms 59004 KB Output is correct
3 Correct 47 ms 59000 KB Output is correct
4 Correct 48 ms 59000 KB Output is correct
5 Correct 56 ms 59128 KB Output is correct
6 Correct 57 ms 59128 KB Output is correct
7 Correct 48 ms 59128 KB Output is correct
8 Correct 51 ms 59256 KB Output is correct
9 Correct 55 ms 59256 KB Output is correct
10 Correct 94 ms 62968 KB Output is correct
11 Correct 119 ms 63708 KB Output is correct
12 Correct 136 ms 65320 KB Output is correct
13 Correct 143 ms 66040 KB Output is correct
14 Correct 126 ms 64444 KB Output is correct
15 Correct 98 ms 62460 KB Output is correct
16 Correct 96 ms 62456 KB Output is correct
17 Correct 125 ms 63736 KB Output is correct
18 Correct 47 ms 59004 KB Output is correct
19 Correct 47 ms 59004 KB Output is correct
20 Correct 47 ms 59000 KB Output is correct
21 Correct 47 ms 59004 KB Output is correct
22 Correct 47 ms 59004 KB Output is correct
23 Correct 52 ms 59128 KB Output is correct
24 Correct 53 ms 59256 KB Output is correct
25 Correct 70 ms 59256 KB Output is correct
26 Correct 61 ms 59164 KB Output is correct
27 Correct 103 ms 63096 KB Output is correct
28 Correct 151 ms 65464 KB Output is correct
29 Correct 162 ms 66168 KB Output is correct
30 Correct 141 ms 64308 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 158 ms 63224 KB Output is correct
2 Correct 56 ms 59000 KB Output is correct
3 Correct 47 ms 59000 KB Output is correct
4 Correct 47 ms 59068 KB Output is correct
5 Correct 49 ms 59180 KB Output is correct
6 Correct 49 ms 59128 KB Output is correct
7 Correct 49 ms 59128 KB Output is correct
8 Correct 127 ms 63096 KB Output is correct
9 Correct 132 ms 63076 KB Output is correct
10 Correct 87 ms 60792 KB Output is correct
11 Correct 159 ms 63864 KB Output is correct
12 Correct 48 ms 59000 KB Output is correct
13 Correct 47 ms 59000 KB Output is correct
14 Correct 49 ms 59188 KB Output is correct
15 Correct 48 ms 59128 KB Output is correct
16 Correct 47 ms 59000 KB Output is correct
17 Correct 56 ms 59228 KB Output is correct
18 Correct 58 ms 59256 KB Output is correct
19 Correct 113 ms 63088 KB Output is correct
20 Correct 178 ms 65696 KB Output is correct
21 Correct 137 ms 63992 KB Output is correct
22 Correct 125 ms 62840 KB Output is correct
23 Correct 171 ms 66124 KB Output is correct
24 Correct 112 ms 63224 KB Output is correct
25 Correct 136 ms 62504 KB Output is correct
26 Correct 297 ms 62456 KB Output is correct
27 Correct 53 ms 58972 KB Output is correct
28 Correct 47 ms 59004 KB Output is correct
29 Correct 47 ms 59000 KB Output is correct
30 Correct 48 ms 59000 KB Output is correct
31 Correct 56 ms 59128 KB Output is correct
32 Correct 57 ms 59128 KB Output is correct
33 Correct 48 ms 59128 KB Output is correct
34 Correct 51 ms 59256 KB Output is correct
35 Correct 55 ms 59256 KB Output is correct
36 Correct 94 ms 62968 KB Output is correct
37 Correct 119 ms 63708 KB Output is correct
38 Correct 136 ms 65320 KB Output is correct
39 Correct 143 ms 66040 KB Output is correct
40 Correct 126 ms 64444 KB Output is correct
41 Correct 98 ms 62460 KB Output is correct
42 Correct 96 ms 62456 KB Output is correct
43 Correct 125 ms 63736 KB Output is correct
44 Correct 47 ms 59004 KB Output is correct
45 Correct 47 ms 59004 KB Output is correct
46 Correct 47 ms 59000 KB Output is correct
47 Correct 47 ms 59004 KB Output is correct
48 Correct 47 ms 59004 KB Output is correct
49 Correct 52 ms 59128 KB Output is correct
50 Correct 53 ms 59256 KB Output is correct
51 Correct 70 ms 59256 KB Output is correct
52 Correct 61 ms 59164 KB Output is correct
53 Correct 103 ms 63096 KB Output is correct
54 Correct 151 ms 65464 KB Output is correct
55 Correct 162 ms 66168 KB Output is correct
56 Correct 141 ms 64308 KB Output is correct
57 Correct 280 ms 66908 KB Output is correct
58 Correct 127 ms 63192 KB Output is correct
59 Correct 152 ms 64120 KB Output is correct