#!/usr/bin/env python3

import math

print("#hashcode2016")

X = 0 # Nb rows
Y = 0 # Nb columns
D = 0 # Nb drones
T = 0 # Deadline
M = 0 # Maximum load
P = 0 # Nb products
W = 0 # Nb warehouses
C = 0 # Nb customers

t = 0 # Turn

Dp = []; # Positions of drones
# (x, y)
Di = []; # Items of drones
# {product number: qt}
Dd = []; # Turn avaibility of drone
# int 
Da = []; # Avaibles drones
# int

Pw = []; # Weight of products
# int

Wp = []; # Positions of warehouses
# (x, y)
Wi = []; # Items of warehouses
# {product number: qt}

Cp = []; # Positions of customers
# (x, y)
Ci = []; # Needs of customers
# {product number: qt}

Out = '' # Drones commands

# Debug

assert(len(Dp) == len(Di) == len(Dd) == len(Da) == D)
assert(len(Pw) == P)
assert(len(Wp) == len(Wi) == W)
assert(len(Cp) == len(Ci) == C)

#def droneInfos(d):
#    print("- Drone", d, "carries", ", ".join([p + ": " + q + "×" + Dw[p] for 

def showGrid():
    for y in range(Y):
        for x in range(X):
            if (x, y) in Wp:
                print("W", end="")
            if (x, y) in Cp:
                print("C", end="")
            else:
                print("·", end="")

# Utilities
def distance(A, B):
    return math.ceil(sqrt(pow((B[0] - A[0], 2) + pow(B[1] - A[1], 2))))

def weight(d):
    return sum([Pw[i] for i in Di[d]])

# Actions
def load(d, w, p, q):
    # drone number, warehouse, product, qt
    assert(d in Da)
    if (Dp[d] != Wp[w]):
        Dd[d] += distance(Dp[d], Wp[w])
    Wi[w][p] += -q
    Di[d][p] += +q
    assert(Wp[w][p] >= 0)
    assert(weight(d) <= M)
    assert(Dd[d] <= T);
    print("Drone", d, "loads", q, "of", p, "from warehouse", w, "→", Dd[d])

def unload(d, w, p, q):
    # drone number, warehouse, product, qt
    assert(d in Da)
    if (Dp[d] != Wp[w]):
        Dd[d] += distance(Dp[d], Wp[w])
    Wi[w][p] += +q
    Di[d][p] += -q
    assert(Dd[d] <= T);
    print("Drone", d, "unloads", q, "of", p, "from warehouse", w, "→", Dd[d])

def deliver(d, c, p, q):
    # drone number, customer, product, qt
    assert(d in Da)
    if (Dp[d] != Cp[c]):
        Dd[d] += distance(Dp[d], Cp[c])
    Ci[w][p] += +q
    Di[d][p] += -q
    Dd[d] += 1
    assert(Dd[d] <= T);
    print("Drone", d, "delivers", q, "of", p, "to client", w, "→", Dd[d])

def wait(d, w=1):
    assert(d in Da)
    Dd[d] += w
    print("Drone", d, "waits", w, "turn" + ('s' if w >= 2 else ''), "→", Dd[d])

# Control
def newTurn():
    t += 1
    print("--- Turn", t)
    for d in Da:
        wait(d)
    assert(len(Da) == 0)
    for d in range(D):
        if Dd[d] <= t:
            Da.push(d)
    print("Drones", ", ".join(Da), "(", len(Da), ")", "are avaible")

def end():
    print("--- End!")

# IA