oj.uz

Submission #1101874

# Submission time Handle Problem Language Result Execution time Memory
1101874 2024-10-17T05:38:00 Z simona1230 Toll (BOI17_toll) C++17
56 / 100
 3000 ms 18628 KB 
#include <bits/stdc++.h>
using namespace std;
int k,n,m,o;
vector<pair<int,int> > v[200001],op[200001];
void read()
{
    cin>>k>>n>>m>>o;
    for(int i=1;i<=m;i++)
    {
        int a,b,t;
        cin>>a>>b>>t;
        v[a].push_back({b,t});
        op[b].push_back({a,t});
    }
}


pair<int,int> q[200001];

long long p[200001];

void subt1()
{
    for(int i=0;i<n;i++)
    {
        p[i+1]=1e9;
        for(int j=0;j<v[i].size();j++)
        {
            long long nb=v[i][j].second;
            p[i+1]=min(p[i+1],nb);
        }
        p[i+1]+=p[i];
    }
    
    for(int i=1;i<=o;i++)
        if(p[q[i].second]-p[q[i].first]<1e9)cout<<p[q[i].second]-p[q[i].first]<<endl;
        else cout<<-1<<endl;
    exit(0);
}

long long dp[200001];

void subt2()
{
    int lm=n;
    for(int i=1;i<n;i++)
    {
        dp[i]=1e9;
        for(int j=0;j<op[i].size();j++)
        {
            pair<int,long long> nb=op[i][j];
            dp[i]=min(dp[i],dp[nb.first]+nb.second);
        }
    }
    
    for(int i=1;i<=o;i++)
        if(dp[q[i].second]<1e9)cout<<dp[q[i].second]<<endl;
        else cout<<-1<<endl;
    exit(0);
}

int lf=0;

long long dp2[50001];

void print(int a,int b)
{
    for(int i=0;i<a;i++)
        dp2[i]=1e9;
    dp2[a]=0;
    for(int i=a+1;i<n;i++)
    {
        dp2[i]=1e9;
        for(int j=0;j<op[i].size();j++)
        {
            pair<int,long long> nb=op[i][j];
            dp2[i]=min(dp2[i],dp2[nb.first]+nb.second);
        }
    }
    
    if(dp2[b]<1e9)cout<<dp2[b]<<endl;
    else cout<<-1<<endl;
}

void solve()
{
    for(int i=1;i<=o;i++)
    {
        cin>>q[i].first>>q[i].second;
        lf=max(lf,q[i].first);
    }
    
    if(k==1)subt1();
    if(lf==0)subt2();
    
    for(int i=1;i<=o;i++)
    {
        print(q[i].first,q[i].second);
    }
}

int main() {
    read();
    solve();
    return 0;
}

Compilation message

toll.cpp: In function 'void subt1()':
toll.cpp:27:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for(int j=0;j<v[i].size();j++)
      |                     ~^~~~~~~~~~~~
toll.cpp: In function 'void subt2()':
toll.cpp:49:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |         for(int j=0;j<op[i].size();j++)
      |                     ~^~~~~~~~~~~~~
toll.cpp:45:9: warning: unused variable 'lm' [-Wunused-variable]
   45 |     int lm=n;
      |         ^~
toll.cpp: In function 'void print(int, int)':
toll.cpp:74:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |         for(int j=0;j<op[i].size();j++)
      |                     ~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 15952 KB Output is correct
2 Correct 3 ms 12624 KB Output is correct
3 Correct 4 ms 12624 KB Output is correct
4 Correct 4 ms 12624 KB Output is correct
5 Correct 6 ms 12624 KB Output is correct
6 Correct 6 ms 12792 KB Output is correct
7 Correct 5 ms 12624 KB Output is correct
8 Correct 53 ms 15940 KB Output is correct
9 Correct 53 ms 16112 KB Output is correct
10 Correct 21 ms 12880 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 16200 KB Output is correct
2 Correct 3 ms 12624 KB Output is correct
3 Correct 5 ms 12588 KB Output is correct
4 Correct 3 ms 12476 KB Output is correct
5 Correct 4 ms 12624 KB Output is correct
6 Correct 4 ms 12804 KB Output is correct
7 Correct 19 ms 12624 KB Output is correct
8 Correct 20 ms 12624 KB Output is correct
9 Correct 64 ms 16112 KB Output is correct
10 Correct 104 ms 17924 KB Output is correct
11 Correct 82 ms 16304 KB Output is correct
12 Correct 84 ms 15944 KB Output is correct
13 Correct 104 ms 18248 KB Output is correct
14 Correct 63 ms 15944 KB Output is correct
15 Correct 53 ms 15344 KB Output is correct
16 Correct 53 ms 15432 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12624 KB Output is correct
2 Correct 3 ms 12692 KB Output is correct
3 Correct 5 ms 12624 KB Output is correct
4 Correct 3 ms 12472 KB Output is correct
5 Correct 4 ms 12624 KB Output is correct
6 Correct 5 ms 12624 KB Output is correct
7 Correct 5 ms 12624 KB Output is correct
8 Correct 7 ms 12880 KB Output is correct
9 Correct 6 ms 12624 KB Output is correct
10 Correct 31 ms 15952 KB Output is correct
11 Correct 76 ms 15944 KB Output is correct
12 Correct 109 ms 17992 KB Output is correct
13 Correct 117 ms 18504 KB Output is correct
14 Correct 87 ms 17236 KB Output is correct
15 Correct 65 ms 15436 KB Output is correct
16 Correct 61 ms 15376 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 12624 KB Output is correct
2 Correct 3 ms 12692 KB Output is correct
3 Correct 5 ms 12624 KB Output is correct
4 Correct 3 ms 12472 KB Output is correct
5 Correct 4 ms 12624 KB Output is correct
6 Correct 5 ms 12624 KB Output is correct
7 Correct 5 ms 12624 KB Output is correct
8 Correct 7 ms 12880 KB Output is correct
9 Correct 6 ms 12624 KB Output is correct
10 Correct 31 ms 15952 KB Output is correct
11 Correct 76 ms 15944 KB Output is correct
12 Correct 109 ms 17992 KB Output is correct
13 Correct 117 ms 18504 KB Output is correct
14 Correct 87 ms 17236 KB Output is correct
15 Correct 65 ms 15436 KB Output is correct
16 Correct 61 ms 15376 KB Output is correct
17 Correct 558 ms 16200 KB Output is correct
18 Correct 4 ms 12624 KB Output is correct
19 Correct 4 ms 12624 KB Output is correct
20 Correct 4 ms 12624 KB Output is correct
21 Correct 4 ms 12624 KB Output is correct
22 Correct 3 ms 12624 KB Output is correct
23 Correct 10 ms 12624 KB Output is correct
24 Correct 15 ms 12624 KB Output is correct
25 Correct 19 ms 12880 KB Output is correct
26 Correct 18 ms 12624 KB Output is correct
27 Correct 37 ms 15952 KB Output is correct
28 Correct 830 ms 18004 KB Output is correct
29 Correct 805 ms 18368 KB Output is correct
30 Correct 815 ms 17224 KB Output is correct

Subtask #5
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 15952 KB Output is correct
2 Correct 3 ms 12624 KB Output is correct
3 Correct 4 ms 12624 KB Output is correct
4 Correct 4 ms 12624 KB Output is correct
5 Correct 6 ms 12624 KB Output is correct
6 Correct 6 ms 12792 KB Output is correct
7 Correct 5 ms 12624 KB Output is correct
8 Correct 53 ms 15940 KB Output is correct
9 Correct 53 ms 16112 KB Output is correct
10 Correct 21 ms 12880 KB Output is correct
11 Correct 86 ms 16200 KB Output is correct
12 Correct 3 ms 12624 KB Output is correct
13 Correct 5 ms 12588 KB Output is correct
14 Correct 3 ms 12476 KB Output is correct
15 Correct 4 ms 12624 KB Output is correct
16 Correct 4 ms 12804 KB Output is correct
17 Correct 19 ms 12624 KB Output is correct
18 Correct 20 ms 12624 KB Output is correct
19 Correct 64 ms 16112 KB Output is correct
20 Correct 104 ms 17924 KB Output is correct
21 Correct 82 ms 16304 KB Output is correct
22 Correct 84 ms 15944 KB Output is correct
23 Correct 104 ms 18248 KB Output is correct
24 Correct 63 ms 15944 KB Output is correct
25 Correct 53 ms 15344 KB Output is correct
26 Correct 53 ms 15432 KB Output is correct
27 Correct 4 ms 12624 KB Output is correct
28 Correct 3 ms 12692 KB Output is correct
29 Correct 5 ms 12624 KB Output is correct
30 Correct 3 ms 12472 KB Output is correct
31 Correct 4 ms 12624 KB Output is correct
32 Correct 5 ms 12624 KB Output is correct
33 Correct 5 ms 12624 KB Output is correct
34 Correct 7 ms 12880 KB Output is correct
35 Correct 6 ms 12624 KB Output is correct
36 Correct 31 ms 15952 KB Output is correct
37 Correct 76 ms 15944 KB Output is correct
38 Correct 109 ms 17992 KB Output is correct
39 Correct 117 ms 18504 KB Output is correct
40 Correct 87 ms 17236 KB Output is correct
41 Correct 65 ms 15436 KB Output is correct
42 Correct 61 ms 15376 KB Output is correct
43 Correct 558 ms 16200 KB Output is correct
44 Correct 4 ms 12624 KB Output is correct
45 Correct 4 ms 12624 KB Output is correct
46 Correct 4 ms 12624 KB Output is correct
47 Correct 4 ms 12624 KB Output is correct
48 Correct 3 ms 12624 KB Output is correct
49 Correct 10 ms 12624 KB Output is correct
50 Correct 15 ms 12624 KB Output is correct
51 Correct 19 ms 12880 KB Output is correct
52 Correct 18 ms 12624 KB Output is correct
53 Correct 37 ms 15952 KB Output is correct
54 Correct 830 ms 18004 KB Output is correct
55 Correct 805 ms 18368 KB Output is correct
56 Correct 815 ms 17224 KB Output is correct
57 Execution timed out 3062 ms 18628 KB Time limit exceeded
58 Halted 0 ms 0 KB -