/////////////////////include/////////////////////
//#include <bits/stdc++.h>
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <algorithm>
#include <cmath>
#include <cstring>
#include <cassert>
#include <set>
#include <map>
#include <unordered_map>
#include <vector>
#include <stack>
#include <queue>
#include <iomanip>
#include <bitset>
#include <stdio.h>
#include <climits>
#include <numeric>
using namespace std;
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
//template <typename T>
//using ordered_set = tree <T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
/////////////////////define/////////////////////
#define ci(x) if(x) cout << "YES" << '\n'; else cout << "NO" << '\n';
#define cii(x) if(check(x))
#define MOD 1000000007
#define MOD2 998244353
#define oo 1e9
#define ool 1e18L
#define pii pair<int, int>
#define pll pair<long long, long long>
#define mii map<int, int>
#define vi vector<int>
#define vpi vector<pair<int, int>>
#define vll vector <ll>
#define ff first
#define ss second
#define mp make_pair
#define ll long long
#define ld long double
#define pb push_back
#define eb emplace_back
#define pob pop_back
#define lb lower_bound
#define ub upper_bound
#define bs binary_search
#define sz(x) (int((x).size()))
#define all(x) (x).begin(), (x).end()
#define alll(x) (x), (x) + n
#define clr(x) (x).clear();
#define fri(x) for(int i = 0; i < x; ++i)
#define frj(x) for(int j = 0; j < x; ++j)
#define frp(x) for(int p = 0; p < x; ++p)
#define frr(a, b) for(int i = a; i < b; ++i)
#define frrj(a, b) for(int j = a; j < b; ++j)
#define fra(x) for(int i = 0; i < x; ++i) cin >> a[i];
#define frb(x) for(int i = 0; i < x; ++i) cin >> b[i];
#define frs(x) for(auto it = x.begin(); it != x.end(); ++it)
#define fr(x) for(auto it : x) //el
#define fastio ios_base::sync_with_stdio(false); cin.tie(0);
#define dbg(x) cerr << #x << ": " << x << endl;
#define ce(x) cout << x << endl;
#define uniq(x) x.resize(unique(all(x)) - x.begin()); //make all one after sorting
#define blt __builtin_popcount
/////////////////////print array, vector, deque, set, multiset, pair, map /////////////////////
void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]"; cout << endl;}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(stack <T> v) {cerr << "[ "; stack<T> s = v; while(s.size()) {T i = s.top(); print(i); s.pop(); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(queue <T> v) {cerr << "[ "; queue<T> s = v; while(s.size()) {T i = s.front(); print(i); s.pop(); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(deque <T> v) {cerr << "[ "; deque<T> s = v; while(s.size()) {T i = s.front(); print(i); s.pop_front(); cerr << " ";} cerr << "]"; cout << endl;}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
template <class T, class V> void print(unordered_map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
/////////////////////code/////////////////////
const int N = 75;
int a[N];
vpi gr[N];
ll ans[N][N], newans[N][N];
ll n, m, k, q, x, y, l;
int main() {
fastio;
cin >> n >> m;
for(x = 1; x <= n; x++) {
for(y = 1; y <= n; y++) {
if(x == y) continue;
ans[x][y] = 1e18;
}
}
fri(m) {
cin >> x >> y >> l;
ans[x][y] = min(ans[x][y], l);
}
for(x = 1; x <= n; x++) {
for(y = 1; y <= n; y++) {
if(x == y) continue;
if(ans[x][y] != 1e18)
gr[y].pb({x, ans[x][y]});
}
}
cin >> k >> q;
frr(2, k + 1) {
for(x = 1; x <= n; x++) {
for(y = 1; y <= n; y++) {
newans[x][y] = ans[x][y];
}
}
for(x = 1; x <= n; x++) {
for(y = 1; y <= n; y++) {
if(x == y) continue;
for(auto z : gr[y]) {
newans[x][y] = min(newans[x][y], ans[x][z.ff] + z.ss);
}
}
}
for(x = 1; x <= n; x++) {
for(y = 1; y <= n; y++) {
ans[x][y] = newans[x][y];
}
}
}
while(q--) {
cin >> x >> y;
if(ans[x][y] == 1e18) cout << -1 << '\n';
else cout << ans[x][y] << '\n';
}
return 0;
}
// ♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥
// ♥ ♥ ♥ ♥ ♥ ♥ ♥
// ♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥
// ♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥
// ♥ ♥ ♥ ♥ ♥ ♥ ♥ ♥
//
// God loves Fil, Fil accepts God's will
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
2 ms |
340 KB |
Output is correct |
4 |
Correct |
2 ms |
340 KB |
Output is correct |
5 |
Correct |
2 ms |
340 KB |
Output is correct |
6 |
Correct |
3 ms |
468 KB |
Output is correct |
7 |
Correct |
3 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
2 ms |
340 KB |
Output is correct |
8 |
Correct |
5 ms |
420 KB |
Output is correct |
9 |
Correct |
2 ms |
340 KB |
Output is correct |
10 |
Correct |
5 ms |
340 KB |
Output is correct |
11 |
Correct |
5 ms |
468 KB |
Output is correct |
12 |
Correct |
15 ms |
368 KB |
Output is correct |
13 |
Correct |
82 ms |
496 KB |
Output is correct |
14 |
Correct |
88 ms |
460 KB |
Output is correct |
15 |
Correct |
102 ms |
480 KB |
Output is correct |
16 |
Correct |
88 ms |
484 KB |
Output is correct |
17 |
Correct |
83 ms |
488 KB |
Output is correct |
18 |
Correct |
104 ms |
476 KB |
Output is correct |
19 |
Correct |
112 ms |
476 KB |
Output is correct |
20 |
Correct |
95 ms |
460 KB |
Output is correct |
21 |
Correct |
83 ms |
460 KB |
Output is correct |
22 |
Correct |
88 ms |
488 KB |
Output is correct |
23 |
Correct |
89 ms |
476 KB |
Output is correct |
24 |
Correct |
95 ms |
480 KB |
Output is correct |
25 |
Correct |
94 ms |
480 KB |
Output is correct |
26 |
Correct |
98 ms |
488 KB |
Output is correct |
27 |
Correct |
92 ms |
492 KB |
Output is correct |
28 |
Correct |
92 ms |
488 KB |
Output is correct |
29 |
Correct |
83 ms |
476 KB |
Output is correct |
30 |
Correct |
86 ms |
492 KB |
Output is correct |
31 |
Correct |
95 ms |
480 KB |
Output is correct |
32 |
Correct |
107 ms |
488 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
2 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
2 ms |
340 KB |
Output is correct |
10 |
Correct |
2 ms |
340 KB |
Output is correct |
11 |
Correct |
2 ms |
340 KB |
Output is correct |
12 |
Correct |
3 ms |
468 KB |
Output is correct |
13 |
Correct |
3 ms |
468 KB |
Output is correct |
14 |
Correct |
2 ms |
340 KB |
Output is correct |
15 |
Correct |
5 ms |
420 KB |
Output is correct |
16 |
Correct |
2 ms |
340 KB |
Output is correct |
17 |
Correct |
5 ms |
340 KB |
Output is correct |
18 |
Correct |
5 ms |
468 KB |
Output is correct |
19 |
Correct |
15 ms |
368 KB |
Output is correct |
20 |
Correct |
82 ms |
496 KB |
Output is correct |
21 |
Correct |
88 ms |
460 KB |
Output is correct |
22 |
Correct |
102 ms |
480 KB |
Output is correct |
23 |
Correct |
88 ms |
484 KB |
Output is correct |
24 |
Correct |
83 ms |
488 KB |
Output is correct |
25 |
Correct |
104 ms |
476 KB |
Output is correct |
26 |
Correct |
112 ms |
476 KB |
Output is correct |
27 |
Correct |
95 ms |
460 KB |
Output is correct |
28 |
Correct |
83 ms |
460 KB |
Output is correct |
29 |
Correct |
88 ms |
488 KB |
Output is correct |
30 |
Correct |
89 ms |
476 KB |
Output is correct |
31 |
Correct |
95 ms |
480 KB |
Output is correct |
32 |
Correct |
94 ms |
480 KB |
Output is correct |
33 |
Correct |
98 ms |
488 KB |
Output is correct |
34 |
Correct |
92 ms |
492 KB |
Output is correct |
35 |
Correct |
92 ms |
488 KB |
Output is correct |
36 |
Correct |
83 ms |
476 KB |
Output is correct |
37 |
Correct |
86 ms |
492 KB |
Output is correct |
38 |
Correct |
95 ms |
480 KB |
Output is correct |
39 |
Correct |
107 ms |
488 KB |
Output is correct |
40 |
Correct |
2 ms |
340 KB |
Output is correct |
41 |
Execution timed out |
1090 ms |
340 KB |
Time limit exceeded |
42 |
Halted |
0 ms |
0 KB |
- |