// Om Namah Shivaya
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x, y) ((x + y - 1) / (y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl
#define rep(i, n) for(int i = 0; i < n; ++i)
#define rep1(i, n) for(int i = 1; i <= n; ++i)
#define rev(i, s, e) for(int i = s; i >= e; --i)
#define trav(i, a) for(auto &i : a)
template<typename T>
void amin(T &a, T b) {
a = min(a, b);
}
template<typename T>
void amax(T &a, T b) {
a = max(a, b);
}
#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif
/*
*/
const int MOD = 1e9 + 7;
const int N = 5e4 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;
vector<pii> adj[N];
void solve(int test_case)
{
int k,n,m,q; cin >> k >> n >> m >> q;
rep(i,m){
int u,v,w; cin >> u >> v >> w;
adj[u].pb({v,w});
}
vector<int> dp(n);
while(q--){
int u,v; cin >> u >> v;
fill(all(dp),inf1);
dp[u] = 0;
for(int i = u; i <= v; ++i){
if(dp[i] >= inf1) conts;
for(auto [j, w] : adj[i]){
amin(dp[j], dp[i] + w);
}
}
int ans = dp[v];
if(ans == inf1) ans = -1;
cout << ans << endl;
}
}
int main()
{
fastio;
int t = 1;
// cin >> t;
rep1(i, t) {
solve(i);
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2728 ms |
4488 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1492 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1492 KB |
Output is correct |
7 |
Correct |
3 ms |
1504 KB |
Output is correct |
8 |
Correct |
413 ms |
4176 KB |
Output is correct |
9 |
Correct |
285 ms |
4072 KB |
Output is correct |
10 |
Correct |
236 ms |
1752 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3045 ms |
4980 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1496 KB |
Output is correct |
5 |
Correct |
1 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1492 KB |
Output is correct |
7 |
Correct |
3 ms |
1492 KB |
Output is correct |
8 |
Correct |
3 ms |
1620 KB |
Output is correct |
9 |
Correct |
3 ms |
1504 KB |
Output is correct |
10 |
Correct |
23 ms |
4052 KB |
Output is correct |
11 |
Correct |
81 ms |
4688 KB |
Output is correct |
12 |
Correct |
86 ms |
6264 KB |
Output is correct |
13 |
Correct |
101 ms |
6768 KB |
Output is correct |
14 |
Correct |
80 ms |
5456 KB |
Output is correct |
15 |
Correct |
49 ms |
4084 KB |
Output is correct |
16 |
Correct |
42 ms |
4024 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1496 KB |
Output is correct |
5 |
Correct |
1 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1492 KB |
Output is correct |
7 |
Correct |
3 ms |
1492 KB |
Output is correct |
8 |
Correct |
3 ms |
1620 KB |
Output is correct |
9 |
Correct |
3 ms |
1504 KB |
Output is correct |
10 |
Correct |
23 ms |
4052 KB |
Output is correct |
11 |
Correct |
81 ms |
4688 KB |
Output is correct |
12 |
Correct |
86 ms |
6264 KB |
Output is correct |
13 |
Correct |
101 ms |
6768 KB |
Output is correct |
14 |
Correct |
80 ms |
5456 KB |
Output is correct |
15 |
Correct |
49 ms |
4084 KB |
Output is correct |
16 |
Correct |
42 ms |
4024 KB |
Output is correct |
17 |
Correct |
1065 ms |
4832 KB |
Output is correct |
18 |
Correct |
1 ms |
1492 KB |
Output is correct |
19 |
Correct |
1 ms |
1492 KB |
Output is correct |
20 |
Correct |
1 ms |
1496 KB |
Output is correct |
21 |
Correct |
1 ms |
1492 KB |
Output is correct |
22 |
Correct |
1 ms |
1492 KB |
Output is correct |
23 |
Correct |
5 ms |
1548 KB |
Output is correct |
24 |
Correct |
15 ms |
1612 KB |
Output is correct |
25 |
Correct |
23 ms |
1620 KB |
Output is correct |
26 |
Correct |
20 ms |
1576 KB |
Output is correct |
27 |
Correct |
140 ms |
4056 KB |
Output is correct |
28 |
Correct |
1256 ms |
6392 KB |
Output is correct |
29 |
Correct |
1245 ms |
6900 KB |
Output is correct |
30 |
Correct |
744 ms |
5744 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2728 ms |
4488 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1492 KB |
Output is correct |
5 |
Correct |
2 ms |
1492 KB |
Output is correct |
6 |
Correct |
2 ms |
1492 KB |
Output is correct |
7 |
Correct |
3 ms |
1504 KB |
Output is correct |
8 |
Correct |
413 ms |
4176 KB |
Output is correct |
9 |
Correct |
285 ms |
4072 KB |
Output is correct |
10 |
Correct |
236 ms |
1752 KB |
Output is correct |
11 |
Execution timed out |
3045 ms |
4980 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |