摘要： u Calculate eTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 13241Accepted Submission(s): 5725Problem DescriptionA simple mathematical formula for e iswhere n is allowed to go to infinity. This can actually yield very accurate approximations of e u 阅读全文

摘要： Minimum Inversion NumberTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1990Accepted Submission(s): 1188Problem DescriptionThe inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i < j and ai 阅读全文

摘要： An easy problemTime Limit: 5000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2563Accepted Submission(s): 1806Problem DescriptionIn this problem you need to make a multiply table of N * N ,just like the sample out. The element in the ith row and jth column should 阅读全文

摘要： Calculate S(n)Time Limit: 10000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3451Accepted Submission(s): 1335Problem DescriptionCalculate S(n).S(n)=13+23 +33 +......+n3 .InputEach line will contain one integer N(1 < n < 1000000000). Process to end of file. 阅读全文

摘要： hide handkerchiefTime Limit: 10000/3000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1107Accepted Submission(s): 530Problem DescriptionThe Children’s Day has passed for some days .Has you remembered something happened at your childhood? I remembered I often played a 阅读全文