linux2[106]% g++ p4test7.cpp -o t7.out

linux2[107]% time ./t7.out 15000
checkMin = 461820641
checkMed = -1960546811
checkMax = 408644184
2.141u 0.007s 0:02.15 99.5%     0+0k 0+0io 0pf+0w

linux2[108]% time ./t7.out 30000
checkMin = 1192860001
checkMed = 231626757
checkMax = -303568720
4.145u 0.014s 0:04.18 99.2%     0+0k 0+0io 0pf+0w

linux2[109]% time ./t7.out 60000
checkMin = -1898322335
checkMed = -2102808571
checkMax = -1265884832
7.960u 0.019s 0:08.01 99.5%     0+0k 0+0io 0pf+0w