Created
July 11, 2010 00:57
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| int mine(int n) | |
| { | |
| int i, sum = 0; | |
| for (i = 1; i <= n; i++) { | |
| sum += i^2/4; | |
| } | |
| return sum; | |
| } |
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/usr/bin/env python
def loop(n):
r = 0
for i in range(1, n+1):
for j in range(i+1, n+1):
for k in range(i+j-1, n+1):
r = r + 1
return r
def correct(n):
sum = 0
for i in range(1, n+1):
sum = sum + i*i/4
return sum
if name == "main":
for i in range(0, 20):
print "i = %2d, loop = %2d, correct = %2d" % (i, loop(i), correct(i))