A. Replacement 题目连接: http://codeforces.com/contest/135/problem/A Description Little Petya very much likes arrays consisting of n integers, where each of them is in the range from 1 to 109, inclusive. Recently he has received one such array as a gift…
A. Letter 题目连接: http://www.codeforces.com/contest/14/problem/A Description A boy Bob likes to draw. Not long ago he bought a rectangular graph (checked) sheet with n rows and m columns. Bob shaded some of the squares on the sheet. Having seen his mas…
C. Zero-One 题目连接: http://codeforces.com/contest/135/problem/C Description Little Petya very much likes playing with little Masha. Recently he has received a game called "Zero-One" as a gift from his mother. Petya immediately offered Masha to pla…
B. Rectangle and Square 题目连接: http://codeforces.com/contest/135/problem/B Description Little Petya very much likes rectangles and especially squares. Recently he has received 8 points on the plane as a gift from his mother. The points are pairwise di…
A. Power Consumption Calculation 题目连接: http://www.codeforces.com/contest/10/problem/A Description Tom is interested in power consumption of his favourite laptop. His laptop has three modes. In normal mode laptop consumes P1 watt per minute. T1 minute…
A. Kalevitch and Chess 题目连接: http://www.codeforces.com/contest/7/problem/A Description A famous Berland's painter Kalevitch likes to shock the public. One of his last obsessions is chess. For more than a thousand years people have been playing this o…
