Problem:
Score : 500 points

Problem Statement

There are N cities numbered 1 to N, connected by M railroads.

You are now at City 1, with 10^{100} gold coins and S silver coins in your pocket.

The i-th railroad connects City U_i and City V_i bidirectionally, and a one-way trip costs A_i silver coins and takes B_i minutes.
You cannot use gold coins to pay the fare.

There is an exchange counter in each city. At the exchange counter in City i, you can get C_i silver coins for 1 gold coin.
The transaction takes D_i minutes for each gold coin you give.
You can exchange any number of gold coins at each exchange counter.

For each t=2, ..., N, find the minimum time needed to travel from City 1 to City t. You can ignore the time spent waiting for trains.

Constraints

2 \leq N \leq 50

N-1 \leq M \leq 100

0 \leq S \leq 10^9

1 \leq A_i \leq 50

1 \leq B_i,C_i,D_i \leq 10^9

1 \leq U_i < V_i \leq N

There is no pair i, j(i \neq j) such that (U_i,V_i)=(U_j,V_j).

Each city t=2,...,N can be reached from City 1 with some number of railroads.

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N M S
U_1 V_1 A_1 B_1
:
U_M V_M A_M B_M
C_1 D_1
:
C_N D_N

Output

For each t=2, ..., N in this order, print a line containing the minimum time needed to travel from City 1 to City t.

Sample Input 1

3 2 1
1 2 1 2
1 3 2 4
1 11
1 2
2 5

Sample Output 1

2
14

The railway network in this input is shown in the figure below.

In this figure, each city is labeled as follows:

The first line: the ID number i of the city (i for City i)

The second line: C_i / D_i

Similarly, each railroad is labeled as follows:

The first line: the ID number i of the railroad (i for the i-th railroad in input)

The second line: A_i / B_i

You can travel from City 1 to City 2 in 2 minutes, as follows:

Use the 1-st railroad to move from City 1 to City 2 in 2 minutes.

You can travel from City 1 to City 3 in 14 minutes, as follows:

Use the 1-st railroad to move from City 1 to City 2 in 2 minutes.

At the exchange counter in City 2, exchange 3 gold coins for 3 silver coins in 6 minutes.

Use the 1-st railroad to move from City 2 to City 1 in 2 minutes.

Use the 2-nd railroad to move from City 1 to City 3 in 4 minutes.

Sample Input 2

4 4 1
1 2 1 5
1 3 4 4
2 4 2 2
3 4 1 1
3 1
3 1
5 2
6 4

Sample Output 2

5
5
7

The railway network in this input is shown in the figure below:

You can travel from City 1 to City 4 in 7 minutes, as follows:

At the exchange counter in City 1, exchange 2 gold coins for 6 silver coins in 2 minutes.

Use the 2-nd railroad to move from City 1 to City 3 in 4 minutes.

Use the 4-th railroad to move from City 3 to City 4 in 1 minutes.

Sample Input 3

6 5 1
1 2 1 1
1 3 2 1
2 4 5 1
3 5 11 1
1 6 50 1
1 10000
1 3000
1 700
1 100
1 1
100 1

Sample Output 3

1
9003
14606
16510
16576

The railway network in this input is shown in the figure below:

You can travel from City 1 to City 6 in 16576 minutes, as follows:

Use the 1-st railroad to move from City 1 to City 2 in 1 minute.

At the exchange counter in City 2, exchange 3 gold coins for 3 silver coins in 9000 minutes.

Use the 1-st railroad to move from City 2 to City 1 in 1 minute.

Use the 2-nd railroad to move from City 1 to City 3 in 1 minute.

At the exchange counter in City 3, exchange 8 gold coins for 8 silver coins in 5600 minutes.

Use the 2-nd railroad to move from City 3 to City 1 in 1 minute.

Use the 1-st railroad to move from City 1 to City 2 in 1 minute.

Use the 3-rd railroad to move from City 2 to City 4 in 1 minute.

At the exchange counter in City 4, exchange 19 gold coins for 19 silver coins in 1900 minutes.

Use the 3-rd railroad to move from City 4 to City 2 in 1 minute.

Use the 1-st railroad to move from City 2 to City 1 in 1 minute.

Use the 2-nd railroad to move from City 1 to City 3 in 1 minute.

Use the 4-th railroad to move from City 3 to City 5 in 1 minute.

At the exchange counter in City 5, exchange 63 gold coins for 63 silver coins in 63 minutes.

Use the 4-th railroad to move from City 5 to City 3 in 1 minute.

Use the 2-nd railroad to move from City 3 to City 1 in 1 minute.

Use the 5-th railroad to move from City 1 to City 6 in 1 minute.

Sample Input 4

4 6 1000000000
1 2 50 1
1 3 50 5
1 4 50 7
2 3 50 2
2 4 50 4
3 4 50 3
10 2
4 4
5 5
7 7

Sample Output 4

1
3
5

The railway network in this input is shown in the figure below:

Sample Input 5

2 1 0
1 2 1 1
1 1000000000
1 1

Sample Output 5

1000000001

The railway network in this input is shown in the figure below:

You can travel from City 1 to City 2 in 1000000001 minutes, as follows:

At the exchange counter in City 1, exchange 1 gold coin for 1 silver coin in 1000000000 minutes.

Use the 1-st railroad to move from City 1 to City 2 in 1 minute.

Solution in OCaml (4.10.0) (judge verdict: Accepted)

open Core
open Stdio
open Bigarray

let scan_line fo g = Caml.Scanf.sscanf In_channel.(input_line_exn stdin) fo g
let scan_line_1 fo = scan_line fo (fun a -> a)
let scan_line_2 fo = scan_line fo (fun a b -> (a,b))
let scan_line_3 fo = scan_line fo (fun a b c -> (a,b,c))
let scan_line_4 fo = scan_line fo (fun a b c d -> (a,b,c,d))

let money_inf = 50 * 50
let dist_inf = Int64.(10L ** 15L)
type edge_t = { cod : int; unchin : int; jikan : Int64.t }

let n, m, s = scan_line_3 "%d %d %d"
let s = min money_inf s

let edges = Array.create ~len:n []

let () =
    for i = 1 to m do
        let u, v, un, ji = scan_line_4 "%d %d %d %Ld" in
        let u = u - 1 in let v = v - 1 in
        edges.(u) <- { cod = v; unchin = un; jikan = ji } :: edges.(u);
        edges.(v) <- { cod = u; unchin = un; jikan = ji } :: edges.(v)
    done

let maisu_jikan_s =
    Array.init n
    ~f:begin fun _ ->
        let x, y = scan_line_2 "%d %Ld" in
        let x = min x money_inf in
        (x,y)
    end

let res = Array2.create int64 c_layout n (money_inf+1)
let () = Array2.fill res dist_inf

(* cf. https://ocaml.janestreet.com/ocaml-core/latest/doc/core_kernel/Core_kernel/Map/index.html *)
module Dijk = struct
    module T = struct
        type t = int64 * int * int
        let compare = Tuple3.compare ~cmp1:Int64.compare ~cmp2:compare ~cmp3:compare
        let sexp_of_t = Tuple3.sexp_of_t Int64.sexp_of_t Int.sexp_of_t Int.sexp_of_t
    end
    include T
    include Comparator.Make(T)
end

module H = struct
    type t = (Dijk.t, Dijk.comparator_witness) Set.t
    let min_elt h = Option.map (Set.min_elt h) ~f:(fun (dist,v,money) -> (dist, (v,money)))
    let remove_min h = match Set.min_elt h with
        | None -> h
        | Some x -> Set.remove h x
    let add h dist (v,money) = Set.add h (dist, v, money)
    let singleton dist (v,money) = Set.singleton (module Dijk) (dist, v, money)
end

let dijk () = let rec loop mins =
    match H.min_elt mins with
    | None -> ()
    | Some (dist, (v, money)) ->
        let mins = H.remove_min mins in
        if Int64.(dist >= res.{v, money}) then loop mins else begin
        res.{v, money} <- Int64.min res.{v, money} dist;
        (* 銀貨に交換 *)
        let mins =
            let dist = Int64.(dist + snd maisu_jikan_s.(v)) in
            let money = money + fst maisu_jikan_s.(v) in
            if money <= money_inf && Int64.(dist < res.{v, money})
            then ((* res.{v, money} <- dist; *) H.add mins dist (v, money))
            else mins
        in
        (* 別の都市に移動 *)
        let mins = List.fold edges.(v) ~init:mins ~f:begin fun mins e ->
            let dist = Int64.(dist + e.jikan) in
            let v = e.cod in
            let money = money - e.unchin in
            if money >= 0 && Int64.(dist < res.{v, money})
            then ((* res.{v, money} <- dist; *) H.add mins dist (v, money))
            else mins
        end in
        loop mins end
    in loop (H.singleton 0L (0, s))

let () =
    dijk ();
    for v = 1 to n - 1 do
        let res_v = Array2.slice_left res v in
        let rec calc_min acc i =
            if i < Array1.dim res_v
            then calc_min Int64.(min acc res_v.{i}) (i+1)
            else acc
        in
        printf "%Ld\n" @@ calc_min dist_inf 0
    done