list = [0,1,2,3,4,5]
sum = 5
d = {}
for i in list:
for j in list:
if i + j == sum:
d[i] = j
print(d)
{0: 5, 1: 4, 2: 3, 3: 2, 4: 1, 5: 0}
1 Answer
list = [3,4,5,2,5,78,4,3,2,1,5,6,8,9]
sum = 10
d = {}
“””a loop in a loop to create a dictionary with all
the pairs which sum is equal to [sum]”””
for i in list:
for j in list:
if i + j == sum:
d[i] = j
print(f”””
{len(d)} pairs.
{d}”””)
“””Unzip the dictionary [d] in two variables [x,y]
and plotted”””
import matplotlib.pyplot as plt
x,y = zip(*d.items())
plt.scatter(x,y,data=True)
plt.show
7 pairs.
{4: 6, 5: 5, 2: 8, 1: 9, 6: 4, 8: 2, 9: 1}