1000_pythagorean_triplet.groovy

def MAX = 1000;
def get(max) {
    def results = [:]
    for(i in 1..max) {
        for(j in i..max) {
            def sum = i*i+j*j;
            double sqrt = Math.sqrt(sum);
            if(sqrt==sqrt.round()) {
                results[[i,j]]=sqrt.round();
            }
        }
    }
    return results;
}
long start = System.currentTimeMillis();
results = get(MAX);
results.each {key, value -> 
    if(key[0]+key[1]+value==MAX) {
        println key.join(", ")+", "+value+" = "+(key[0]*key[1]*value);
    }
}
long end = System.currentTimeMillis();
println "duration "+((end-start)/1000.0)+" s";