三个农民每天清晨5点起床，然后去牛棚给3头牛挤奶。第一个农民在300秒(从5点开始计时)给他的牛挤奶，一直到1000秒。第二个农民在700秒开始，在 1200秒结束。第三个农民在1500秒开始2100秒结束。期间最长的至少有一个农民在...

Copying Books Time Limit: 3000MS Memory Limit: 10000K Total Submissions: 10819 Accepted: 3349 Description

Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 25853 Accepted: 6484

Monthly Expense Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 38688 Accepted: 14256

Expanding Rods Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 20224 Accepted: 5412 Description

Aggressive cows Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 24838 Accepted: 11537 Description

Time Limit: 1 Second Memory Limit: 65536 KB

Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian - polosatiki, but the scientist...

Nastya received a gift on New Year — a magic wardrobe. It is magic because in the end of each month the number of dresses in it doubles (i.e. the number of dres...

You can perform any of the following operations with this number an arbitrary (possibly, zero) number of times: