Submission #916322

#	Time	Username	Problem	Language	Result	Execution time	Memory
916322		trMatherz	Toll (BOI17_toll)	C++17	7 / 100	728 ms	326812 KiB

toll

#include <iostream> //cin, cout

/*
#include <fstream>
std::ifstream cin ("ex.in");
std::ofstream cout ("ex.out");
*/




// includes
#include <cmath> 
#include <set>
#include <map>
#include <queue>
#include <string>
#include <vector>
#include <array>
#include <algorithm>
#include <numeric>
#include <iomanip>
#include <unordered_set>
#include <stack>
#include <ext/pb_ds/assoc_container.hpp>
#include <random>
#include <chrono>



//usings 
using namespace std;
using namespace __gnu_pbds;


// misc
#define ll long long
#define pb push_back
#define pq priority_queue
#define ub upper_bound
#define lb lower_bound
template<typename T, typename U> bool emin(T &a, const U &b){ return b < a ? a = b, true : false; }
template<typename T, typename U> bool emax(T &a, const U &b){ return b > a ? a = b, true : false; }
typedef uint64_t hash_t;

// vectors
#define vi vector<int>
#define vvi vector<vi>
#define vvvi vector<vvi>
#define vpii vector<pair<int, int>>
#define vvpii vector<vector<pair<int, int>>>
#define vppipi vector<pair<int, pair<int, int>>>
#define vl vector<ll>
#define vvl vector<vl>
#define vvvl vector<vvl>
#define vpll vector<pair<ll, ll>>
#define vb vector<bool>
#define vvb vector<vb>
#define vs vector<string>
#define sz(x) (int)x.size()
#define rz resize
#define all(x) x.begin(), x.end()


// pairs
#define pii pair<int, int>
#define pll pair<ll, ll>
#define mp make_pair
#define f first
#define s second

// sets
#define si set<int>
#define sl set<ll>
#define ss set<string>
#define in insert
template <class T> using iset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

// maps
#define mii map<int, int>
#define mll map<ll, ll>

// loops
#define FR(x, z, y) for (int x = z; x < y; x++)
#define FRE(x, z, y) FR(x, z, y + 1)
#define F(x, y) FR(x, 0, y)
#define FE(x, y) F(x, y + 1)
#define A(x, y) for(auto &x : y)

vvl dp[50'005][17];

int main(){
    F(i, 50'005) F(j, 17) dp[i][j] = vvl(5, vl(5, 1e12));
    int k, n, m, q; cin >> k >> n >> m >> q;
    while(m--){
        int x, y, z; cin >> x >> y >> z;
        dp[x / k][0][x % k][y % k] = z;
    }
    FR(j, 1, 17) for(int i = 0; i + (1 << j) < (n + k - 1); i++) F(l, 5) F(p, 5) F(u, 5) 
        emin(dp[i][j][l][p], dp[i][j - 1][l][u] + dp[i + (1 << j - 1)][j - 1][u][p]);
    while(q--){
        int x, y; cin >> x >> y;
        vvl ans = vvl(5, vl(5, 0));
        int cur = x / k; int dest = y / k;
        for(int i = 16; i >= 0; i--){
                if(cur + (1 << i) > dest) continue;
                vvl temp = vvl(5, vl(5, 1e12));
                F(l, 5) F(p, 5) F(u, 5) 
                    emin(temp[l][p], ans[l][u] + dp[cur][i][u][p]);
                cur += (1 << i);
                ans = temp;
        } 
        cout << (ans[x % k][y % k] == 1e12 ? -1 : ans[x % k][y % k]) << endl;
    }
    
    return 0;
}

Compilation message (stderr)

toll.cpp: In function 'int main()':
toll.cpp:100:66: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
  100 |         emin(dp[i][j][l][p], dp[i][j - 1][l][u] + dp[i + (1 << j - 1)][j - 1][u][p]);
      |                                                                ~~^~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 10
• Subtask 3: 0 / 8
• Subtask 4: 0 / 31
• Subtask 5: 0 / 44