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Submission #628264

# Submission time Handle Problem Language Result Execution time Memory
628264 2022-08-13T09:15:51 Z duytuandao21 Toll (BOI17_toll) C++17
0 / 100
 3000 ms 100048 KB 
#include<iostream>
#include<cmath>
#include<algorithm>
#include<stack>
#include<queue>
#include<deque>
using namespace std;
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
#define fi first
#define se second
#define ll long long
#define mp make_pair
#define pb push_back
#define ii pair<ll, int>
#define task "test"

const int inf = 1e9 + 7;
const ll infll = (ll)1e18 + 7;
const int MOD = 1e9 + 7;
const int N = 2e6 + 3;

template <typename T1, typename T2> bool minimize(T1 &a, T2 b){if (a > b) {a = b; return true;} return false;}
template <typename T1, typename T2> bool maximize(T1 &a, T2 b){if (a < b) {a = b; return true;} return false;}

int k,n,m,q;
vector<ii> adj[N];

void solve(int x,int y) {
    vector<ll> d(n+1, inf);
    d[x] = 0;
    priority_queue< ii, vector<ii>, greater<ii> > p;
    p.push(mp(0,x));
    while(!p.empty()) {
        int u = p.top().se;
        int val = p.top().fi; p.pop();
        if(val != d[u]) continue;
        for(ii X : adj[u]) {
            int v = X.se;
            int he = X.fi;
            if(d[v] > val + he) {
                d[v] = val + he;
                p.push(mp(d[v], v));
            }
        }
    }
    if(d[y] == inf) cout<<-1<<'\n'; else cout<<d[y]<<'\n';
}
int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);	

	cin>>k>>n>>m>>q;
	for(int i=1;i<=m;i++) {
        int u,v,w; cin>>u>>v>>w;
        adj[u].pb(mp(w,v));
	}
	if(k == 1) {
		int pre[n+1];
		pre[0] = 0;
		for(int i=1;i<=n;i++) {
			pre[i] = pre[i-1] + adj[i-1][0].fi;
		}	
		for(int i=1;i<=q;i++) {
			int u,v; cin>>u>>v;
			if(u > v) cout<<-1<<'\n'; else cout<<pre[v] - pre[u-1]<<'\n';
		}
		return 0;
	} 
	for(int i=1;i<=q;i++) {
        int u,v;
        cin>>u>>v;
        solve(u,v);
	}
    return 0;
}
/* 5 14 5 5
0 5 9
5 12 10
0 7 7
7 12 8
4 7 10
0 12
0 5
0 7
7 12
0 13 */

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Runtime error 81 ms 100048 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3062 ms 51912 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 62 ms 95564 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 31.0

# Verdict Execution time Memory Grader output
1 Runtime error 62 ms 95564 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 44.0

# Verdict Execution time Memory Grader output
1 Runtime error 81 ms 100048 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -