oj.uz

Submission #1101871

# Submission time Handle Problem Language Result Execution time Memory
1101871 2024-10-17T05:36:33 Z simona1230 Toll (BOI17_toll) C++17
100 / 100
 1706 ms 21592 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<=b;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 65 ms 15976 KB Output is correct
2 Correct 4 ms 12628 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 6 ms 12624 KB Output is correct
8 Correct 50 ms 16120 KB Output is correct
9 Correct 58 ms 15848 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 79 ms 16200 KB Output is correct
2 Correct 4 ms 12624 KB Output is correct
3 Correct 5 ms 12624 KB Output is correct
4 Correct 3 ms 12676 KB Output is correct
5 Correct 4 ms 12624 KB Output is correct
6 Correct 3 ms 12624 KB Output is correct
7 Correct 22 ms 12796 KB Output is correct
8 Correct 20 ms 12768 KB Output is correct
9 Correct 55 ms 15952 KB Output is correct
10 Correct 108 ms 18088 KB Output is correct
11 Correct 81 ms 16168 KB Output is correct
12 Correct 78 ms 15884 KB Output is correct
13 Correct 132 ms 18248 KB Output is correct
14 Correct 64 ms 16020 KB Output is correct
15 Correct 55 ms 15444 KB Output is correct
16 Correct 55 ms 15444 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 4 ms 12624 KB Output is correct
3 Correct 5 ms 12628 KB Output is correct
4 Correct 5 ms 12476 KB Output is correct
5 Correct 4 ms 12628 KB Output is correct
6 Correct 5 ms 12628 KB Output is correct
7 Correct 4 ms 12628 KB Output is correct
8 Correct 6 ms 12884 KB Output is correct
9 Correct 6 ms 12884 KB Output is correct
10 Correct 32 ms 16724 KB Output is correct
11 Correct 68 ms 17620 KB Output is correct
12 Correct 103 ms 20044 KB Output is correct
13 Correct 115 ms 20820 KB Output is correct
14 Correct 81 ms 19020 KB Output is correct
15 Correct 54 ms 16716 KB Output is correct
16 Correct 69 ms 16724 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 4 ms 12624 KB Output is correct
3 Correct 5 ms 12628 KB Output is correct
4 Correct 5 ms 12476 KB Output is correct
5 Correct 4 ms 12628 KB Output is correct
6 Correct 5 ms 12628 KB Output is correct
7 Correct 4 ms 12628 KB Output is correct
8 Correct 6 ms 12884 KB Output is correct
9 Correct 6 ms 12884 KB Output is correct
10 Correct 32 ms 16724 KB Output is correct
11 Correct 68 ms 17620 KB Output is correct
12 Correct 103 ms 20044 KB Output is correct
13 Correct 115 ms 20820 KB Output is correct
14 Correct 81 ms 19020 KB Output is correct
15 Correct 54 ms 16716 KB Output is correct
16 Correct 69 ms 16724 KB Output is correct
17 Correct 310 ms 17580 KB Output is correct
18 Correct 3 ms 12628 KB Output is correct
19 Correct 3 ms 12628 KB Output is correct
20 Correct 4 ms 12628 KB Output is correct
21 Correct 3 ms 12628 KB Output is correct
22 Correct 3 ms 12628 KB Output is correct
23 Correct 9 ms 12628 KB Output is correct
24 Correct 12 ms 12628 KB Output is correct
25 Correct 15 ms 12960 KB Output is correct
26 Correct 14 ms 12916 KB Output is correct
27 Correct 40 ms 16804 KB Output is correct
28 Correct 467 ms 20056 KB Output is correct
29 Correct 476 ms 20824 KB Output is correct
30 Correct 468 ms 19032 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 15976 KB Output is correct
2 Correct 4 ms 12628 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 6 ms 12624 KB Output is correct
8 Correct 50 ms 16120 KB Output is correct
9 Correct 58 ms 15848 KB Output is correct
10 Correct 21 ms 12880 KB Output is correct
11 Correct 79 ms 16200 KB Output is correct
12 Correct 4 ms 12624 KB Output is correct
13 Correct 5 ms 12624 KB Output is correct
14 Correct 3 ms 12676 KB Output is correct
15 Correct 4 ms 12624 KB Output is correct
16 Correct 3 ms 12624 KB Output is correct
17 Correct 22 ms 12796 KB Output is correct
18 Correct 20 ms 12768 KB Output is correct
19 Correct 55 ms 15952 KB Output is correct
20 Correct 108 ms 18088 KB Output is correct
21 Correct 81 ms 16168 KB Output is correct
22 Correct 78 ms 15884 KB Output is correct
23 Correct 132 ms 18248 KB Output is correct
24 Correct 64 ms 16020 KB Output is correct
25 Correct 55 ms 15444 KB Output is correct
26 Correct 55 ms 15444 KB Output is correct
27 Correct 4 ms 12624 KB Output is correct
28 Correct 4 ms 12624 KB Output is correct
29 Correct 5 ms 12628 KB Output is correct
30 Correct 5 ms 12476 KB Output is correct
31 Correct 4 ms 12628 KB Output is correct
32 Correct 5 ms 12628 KB Output is correct
33 Correct 4 ms 12628 KB Output is correct
34 Correct 6 ms 12884 KB Output is correct
35 Correct 6 ms 12884 KB Output is correct
36 Correct 32 ms 16724 KB Output is correct
37 Correct 68 ms 17620 KB Output is correct
38 Correct 103 ms 20044 KB Output is correct
39 Correct 115 ms 20820 KB Output is correct
40 Correct 81 ms 19020 KB Output is correct
41 Correct 54 ms 16716 KB Output is correct
42 Correct 69 ms 16724 KB Output is correct
43 Correct 310 ms 17580 KB Output is correct
44 Correct 3 ms 12628 KB Output is correct
45 Correct 3 ms 12628 KB Output is correct
46 Correct 4 ms 12628 KB Output is correct
47 Correct 3 ms 12628 KB Output is correct
48 Correct 3 ms 12628 KB Output is correct
49 Correct 9 ms 12628 KB Output is correct
50 Correct 12 ms 12628 KB Output is correct
51 Correct 15 ms 12960 KB Output is correct
52 Correct 14 ms 12916 KB Output is correct
53 Correct 40 ms 16804 KB Output is correct
54 Correct 467 ms 20056 KB Output is correct
55 Correct 476 ms 20824 KB Output is correct
56 Correct 468 ms 19032 KB Output is correct
57 Correct 1706 ms 21592 KB Output is correct
58 Correct 59 ms 16972 KB Output is correct
59 Correct 977 ms 17960 KB Output is correct