diy1.py

import time
start_time = time.time()
print("start time",start_time)
for a in range(0,1001):
    for b in range(0,1001):
        c = 1000-a-b
        if a*a + b*b == c*c:
            print(a,b,c)
end_time = time.time()
print("end time",end_time)
cost_time = end_time - start_time
print(cost_time)