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BallSwapping.py
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BallSwapping.py
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#!/bin/python3
import math
import os
import random
import re
import sys
'''
2
3
1 3 1
2 1 2
3 3 3
3
[0, 2, 1], [1, 1, 1], [2, 0, 0]
Your Output (stdout)
Impossible
Impossible
Expected Output
Impossible
Possible
'''
def __get_pos(cntno, containers):
pos = []
for i in range(len(containers)):
if containers[cntno][i] != 0:
pos.append(i)
#print("__get_pos: ", pos)
return pos
def __reduce_from_increase_in(cntno, red, pos, containers):
#print("__reduce_from_increase_in", red, pos)
for i in range(len(containers)):
if i == cntno:
continue
if containers[i][pos] and containers[i][pos] <= containers[cntno][red]:
containers[cntno][pos] += containers[i][pos]
containers[i][red] += containers[i][pos]
containers[cntno][red] -= containers[i][pos]
containers[i][pos] = 0
#print("containers: ", containers)
def __incorrect_results(cntno, pos, containers):
#print("__incorrect_results:", containers, cntno)
for j in range(len(containers)):
if containers[cntno][j] != 0 and j != pos:
#print("__incorrect_results: ", True)
return True
if containers[j][pos] != 0 and j != cntno:
#print("__incorrect_results: ", True)
return True
#print("__incorrect_results: ", False)
return False
def __get_rid_of_others(cntno, pos, containers):
correct = True
orig_containers = containers[:]
for j in range(len(containers)):
if j == pos or containers[cntno][j] == 0: continue
correct = True
__reduce_from_increase_in(cntno, j, pos, containers)
if __incorrect_results(cntno, pos, containers):
containers = orig_containers[:]
correct = False
else:
return True
return correct
def __organize(cntno, baltyp, containers):
if not containers[cntno][baltyp]:
return True
correct = True
for pos in __get_pos(cntno, containers):
correct = True
orig_containers = containers[:]
if not __get_rid_of_others(cntno, pos, containers):
correct = False
containers = orig_containers[:]
return correct
# Complete the organizingContainers function below.
def organizingContainers(containers):
correct = True
#print(containers)
for cntno in range(len(containers)):
for baltyp in range(len(containers)):
correct = True
orig_containers = containers
if not __organize(cntno, baltyp, containers):
correct = False
containers = orig_containers
return correct
if __name__ == '__main__':
result = organizingContainers([[1, 3, 1], [2, 1, 2], [3, 3, 3]])
#result = organizingContainers([[0, 2, 1], [1, 1, 1], [2, 0, 0]])
print(result)