oj.uz

Submission #843056

# Submission time Handle Problem Language Result Execution time Memory
843056 2023-09-03T15:33:39 Z ASN49K Toll (BOI17_toll) C++14
100 / 100
 153 ms 73564 KB 
#include <iostream>
#include <iomanip>
#include <algorithm>
#include <vector>
#include <cassert>
#include <cmath>
#include <stack>
#include <set>
#include <functional>
#include <bitset>
#include <map>
#include <unordered_map>
#include <queue>
#include <array>
#include <numeric>
#include <complex>
using namespace std;
template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template<typename A> ostream& operator<<(ostream& os, vector<A>& a) { for(auto &c:a)os<<c<<' '; return os;}
template<typename A> istream& operator>>(istream& os, vector<A>& a) { for(auto &c:a)os>>c; return os;}
template<typename A,size_t N> istream& operator>>(istream &os, array<A,N>&a) { for(auto &c:a)os>>c; return os;}
template<typename A,typename B> istream& operator>>(istream& os, pair<A,B>&a) { os>>a.first>>a.second; return os;}
template<typename A> istream& operator >>(istream& os,complex<A>& a){pair<A,A>aux;os>>aux;a=complex<A>(aux.first,aux.second);return os;}
#define bug(a) cerr << "(" << #a << ": " << a << ")\n";
#define all(x) x.begin(),x.end()
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define PQ priority_queue
#define x real
#define y imag
using pii= pair<int,int>;
using VI= vector<int>;
using v64= vector<int64_t>;
using point=complex<double>;
using i64= int64_t;
using i16= int16_t;
using u64= uint64_t;
using u32= uint32_t;
using i32= int32_t;
using u16= uint16_t;
const i32 inf=1e9;
const i64 INF=1e18;
const int mod=1e9+7;
const int sigma=26;
///sparse table dp[(int)log2(saritura)][poz/k][x][y]
#define vvii vector<vector<int>>
void solve()
{
    int k,n,m,q;
    cin>>k>>n>>m>>q;
    int mx_jump=(n-1)/k;
    //position of last element
    vector<vector<vector<vector<int>>>>dp((int)log2(mx_jump)+1,vector<vector<vector<int>>>(mx_jump+1,vector<vector<int>>(k,vector<int>(k,inf))));
    for(int i=0;i<m;i++)
    {
        int x,y,z;
        cin>>x>>y>>z;
        dp[0][x/k][x%k][y%k]=z;
    }
    auto combine=[&](const vvii& x,const vvii& y)
    {
        vvii sol(k,vector<int>(k,inf));
        for(int i=0;i<k;i++)
        {
            for(int j=0;j<k;j++)
            {
                for(int m=0;m<k;m++)
                {
                    sol[i][j]=min(sol[i][j],x[i][m]+y[m][j]);
                }
            }
        }
        return sol;

    };
    for(int i=1;(1<<i)<=mx_jump;i++)
    {
        for(int j=0;j+(1<<i)<=mx_jump;j++)
        {
            dp[i][j]=combine(dp[i-1][j],dp[i-1][j+(1<<(i-1))]);
        }
    }
    while(q--)
    {
        int x,y;
        cin>>x>>y;
        vector<int> sol(5,inf);
        sol[x%k]=0;
        int caut=y%k;
        x/=k;
        y/=k;
        if(x!=y)
        {
            for(int i=(int)log2(y-x);i>=0;i--)
            {
                if(x+(1<<i)<=y)
                {
                    auto old=sol;
                    fill(all(sol),inf);
                    for(int a=0;a<k;a++)
                    {
                        for(int b=0;b<k;b++)
                        {
                            sol[b]=min(sol[b],old[a]+dp[i][x][a][b]);
                        }
                    }
                    x+=(1<<i);
                }
            }
        }
        if(sol[caut]==inf)
            sol[caut]=-1;
        cout<<sol[caut]<<'\n';

    }
}
main()
{
    i32 tt=1;
    ios::sync_with_stdio(false);
    cin.tie(0);
    //cin>>tt;
    while(tt--)
    {
        solve();
    }
}

Compilation message

toll.cpp:118:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  118 | main()
      | ^~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 153 ms 73500 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 1372 KB Output is correct
6 Correct 2 ms 1372 KB Output is correct
7 Correct 2 ms 1400 KB Output is correct
8 Correct 138 ms 73556 KB Output is correct
9 Correct 137 ms 73556 KB Output is correct
10 Correct 140 ms 73556 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 110 ms 59732 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 5 ms 1372 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 140 ms 73564 KB Output is correct
10 Correct 147 ms 52556 KB Output is correct
11 Correct 136 ms 59904 KB Output is correct
12 Correct 103 ms 52564 KB Output is correct
13 Correct 87 ms 26348 KB Output is correct
14 Correct 61 ms 29784 KB Output is correct
15 Correct 63 ms 25984 KB Output is correct
16 Correct 57 ms 26004 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 1372 KB Output is correct
7 Correct 2 ms 1384 KB Output is correct
8 Correct 2 ms 860 KB Output is correct
9 Correct 2 ms 860 KB Output is correct
10 Correct 118 ms 73524 KB Output is correct
11 Correct 104 ms 59768 KB Output is correct
12 Correct 105 ms 52608 KB Output is correct
13 Correct 115 ms 52588 KB Output is correct
14 Correct 104 ms 52796 KB Output is correct
15 Correct 59 ms 26068 KB Output is correct
16 Correct 64 ms 26124 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 1372 KB Output is correct
7 Correct 2 ms 1384 KB Output is correct
8 Correct 2 ms 860 KB Output is correct
9 Correct 2 ms 860 KB Output is correct
10 Correct 118 ms 73524 KB Output is correct
11 Correct 104 ms 59768 KB Output is correct
12 Correct 105 ms 52608 KB Output is correct
13 Correct 115 ms 52588 KB Output is correct
14 Correct 104 ms 52796 KB Output is correct
15 Correct 59 ms 26068 KB Output is correct
16 Correct 64 ms 26124 KB Output is correct
17 Correct 108 ms 59740 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 3 ms 1372 KB Output is correct
24 Correct 3 ms 1220 KB Output is correct
25 Correct 3 ms 860 KB Output is correct
26 Correct 3 ms 860 KB Output is correct
27 Correct 121 ms 73460 KB Output is correct
28 Correct 103 ms 52596 KB Output is correct
29 Correct 115 ms 52624 KB Output is correct
30 Correct 113 ms 52452 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 153 ms 73500 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 1372 KB Output is correct
6 Correct 2 ms 1372 KB Output is correct
7 Correct 2 ms 1400 KB Output is correct
8 Correct 138 ms 73556 KB Output is correct
9 Correct 137 ms 73556 KB Output is correct
10 Correct 140 ms 73556 KB Output is correct
11 Correct 110 ms 59732 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 5 ms 1372 KB Output is correct
18 Correct 6 ms 1228 KB Output is correct
19 Correct 140 ms 73564 KB Output is correct
20 Correct 147 ms 52556 KB Output is correct
21 Correct 136 ms 59904 KB Output is correct
22 Correct 103 ms 52564 KB Output is correct
23 Correct 87 ms 26348 KB Output is correct
24 Correct 61 ms 29784 KB Output is correct
25 Correct 63 ms 25984 KB Output is correct
26 Correct 57 ms 26004 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 2 ms 1372 KB Output is correct
33 Correct 2 ms 1384 KB Output is correct
34 Correct 2 ms 860 KB Output is correct
35 Correct 2 ms 860 KB Output is correct
36 Correct 118 ms 73524 KB Output is correct
37 Correct 104 ms 59768 KB Output is correct
38 Correct 105 ms 52608 KB Output is correct
39 Correct 115 ms 52588 KB Output is correct
40 Correct 104 ms 52796 KB Output is correct
41 Correct 59 ms 26068 KB Output is correct
42 Correct 64 ms 26124 KB Output is correct
43 Correct 108 ms 59740 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 3 ms 1372 KB Output is correct
50 Correct 3 ms 1220 KB Output is correct
51 Correct 3 ms 860 KB Output is correct
52 Correct 3 ms 860 KB Output is correct
53 Correct 121 ms 73460 KB Output is correct
54 Correct 103 ms 52596 KB Output is correct
55 Correct 115 ms 52624 KB Output is correct
56 Correct 113 ms 52452 KB Output is correct
57 Correct 147 ms 48716 KB Output is correct
58 Correct 138 ms 73400 KB Output is correct
59 Correct 140 ms 59728 KB Output is correct