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Riduidel/probleme_28.groovy

Created February 15, 2011 15:32
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probleme_28.groovy
long start = System.currentTimeMillis();
def range = 1..501
println range.sum(-3, { n -> 4*(2*n-1)*(2*n-1)-12*(n-1) })
long end = System.currentTimeMillis();
println "duration "+((end-start)/1000.0)+" s";
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